Author: claimsbot

1. A centrifugal pump apparatus including a housing having first and second chambers partitioned from each other by a diaphragm, an impeller rotatably provided in said first chamber along said diaphragm, for delivering liquid by centrifugal force during rotation, and a drive unit provided in said second chamber for driving said impeller to rotate via said diaphragm, comprising:
a first magnetic material provided in one surface of said impeller;
a second magnetic material provided in an inner wall of said first chamber facing the one surface of said impeller, for attracting said first magnetic material;
a plurality of third magnetic materials provided in the other surface of said impeller, and arranged along a single circle such that adjacent magnetic polarities thereof are different from each other, wherein
said drive unit includes
a plurality of fourth magnetic materials arranged to face said plurality of third magnetic materials, and
a plurality of coils provided correspondingly to said plurality of fourth magnetic materials, respectively, each being wound around a corresponding one of the fourth magnetic materials for generating a rotating magnetic field, and wherein
during rotation of said impeller, a first attractive force between said first and second magnetic materials and a second attractive force between said plurality of third magnetic materials and said plurality of fourth magnetic materials are balanced with each other substantially in a center of a movable range of said impeller in said first chamber;

a control unit that causes said impeller to contact said diaphragm prior to activation of said impeller to rotate, by causing a current to flow through said plurality of coils such that said second attractive force becomes higher than said first attractive force; and
first grooves for a hydrodynamic bearing formed in the one surface of said impeller or in the inner wall of said first chamber facing the one surface, and second grooves for the hydrodynamic bearing formed in the other surface of said impeller or in said diaphragm facing the other surface;
wherein each of said first to third magnetic materials is a permanent magnet.
2. The centrifugal pump apparatus according to claim 1, wherein a sum of an absolute value of a negative axial supporting rigidity value of said impeller which is constituted of said first and second attractive forces and an absolute value of a positive radial rigidity value of said impeller is smaller than an absolute value of a positive rigidity value obtained by said first and second grooves in a normal rotation speed range where said impeller rotates.
3. The centrifugal pump apparatus according to claim 1, wherein a hydrodynamic pressure generated by said first grooves is different from a hydrodynamic pressure generated by said second grooves.
4. The centrifugal pump apparatus according to claim 1, wherein at least one of said first and second grooves is an inward spiral groove.
5. The centrifugal pump apparatus according to claim 1, wherein said fourth magnetic materials are made of a soft magnetic material.
6. The centrifugal pump apparatus according to claim 1, wherein said control unit causes said impeller to contact said diaphragm when said impeller is activated to rotate, by causing a first current to flow through said plurality of coils, and then causes said impeller to rotate by causing a second current smaller than said first current to flow through said plurality of coils.
7. The centrifugal pump apparatus according to claim 1, wherein a diamond-like carbon coating for reducing frictional force is formed on at least one of a surface of said impeller and the inner wall of said first chamber.
8. The centrifugal pump apparatus according to claim 1, wherein surfaces facing each other of every two adjacent fourth magnetic materials are provided substantially parallel to each other.
9. The centrifugal pump apparatus according to claim 8, further comprising a fifth magnetic material provided correspondingly to each of the fourth magnetic materials, on a tip surface of a corresponding one of the fourth magnetic materials facing one of said third magnetic materials, wherein
a surface of said fifth magnetic material facing said third magnetic material has an area larger than an area of the tip surface of said fourth magnetic material.
10. The centrifugal pump apparatus according to claim 8, wherein
each of the fourth magnetic materials includes a plurality of steel plates stacked in a rotation direction of said impeller.
11. The centrifugal pump apparatus according to claim 1, further comprising:
a magnetic sensor provided in said second chamber to face a path through which said plurality of third magnetic materials pass, for detecting variation in magnetic field associated with rotation and change of position of said impeller; and
a control unit for causing a current to flow through said plurality of coils based on a detection result from said magnetic sensor, to generate a rotating magnetic field to drive said impeller to rotate.
12. The centrifugal pump apparatus according to claim 11, further comprising a first operation unit for determining an axial position of said impeller in said first chamber based on the detection result from said magnetic sensor.
13. The centrifugal pump apparatus according to claim 12, wherein said first operation unit outputs information indicating the axial position of said impeller to outside.
14. The centrifugal pump apparatus according to claim 12, further comprising a determination unit for determining whether or not the axial position of said impeller determined by said first operation unit is within a normal range, and outputting a signal indicating a determination result.
15. The centrifugal pump apparatus according to claim 1, further comprising:
a first detection unit for detecting a voltage applied to each of the coils;
a second detection unit for detecting a current flowing through each of the coils; and
an operation unit for determining an axial position of said impeller in said first chamber based on detection results from said first and second detection units and information indicating a rotation speed of said impeller.
16. The centrifugal pump apparatus according to claim 15, further comprising a determination unit for determining whether or not the axial position of said impeller determined by said operation unit is within a normal range, and outputting a signal indicating a determination result.
17. The centrifugal pump apparatus according to claim 15, further comprising a determination unit for determining whether or not an axial position of said impeller is within a normal range based on the axial position of said impeller determined by said operation unit and the information indicating a rotation speed of said impeller, and outputting a signal indicating a determination result.
18. The centrifugal pump apparatus according to claim 15, further comprising a determination unit for determining whether or not an axial position of said impeller is within a normal range based on the axial position of said impeller determined by said operation unit, the information indicating a rotation speed of said impeller, and viscosity information on said liquid, and outputting a signal indicating a determination result.
19. The centrifugal pump apparatus according to claim 1, wherein said liquid is blood, and
said centrifugal pump apparatus is used for circulating said blood.
20. A centrifugal pump apparatus including a housing having first and second chambers partitioned from each other by a diaphragm, an impeller rotatably provided in said first chamber along said diaphragm, for delivering liquid by centrifugal force during rotation, and a drive unit provided in said second chamber for driving said impeller to rotate via said diaphragm, comprising:
a first magnetic material provided in one surface of said impeller;
a second magnetic material provided in an inner wall of said first chamber facing the one surface of said impeller, for attracting said first magnetic material;
a plurality of third magnetic materials provided in the other surface of said impeller, and arranged along a single circle such that adjacent magnetic polarities thereof are different from each other, wherein
said drive unit includes
a plurality of fourth magnetic materials each stationary during rotation of said impeller and arranged to magnetically couple with said plurality of third magnetic materials, and
a plurality of coils provided correspondingly to said plurality of fourth magnetic materials, respectively, each being wound around a corresponding one of the fourth magnetic materials for generating a rotating magnetic field, and wherein
during rotation of said impeller, a first attractive force between said first and second magnetic materials and a second attractive force between said plurality of third magnetic materials and said plurality of fourth magnetic materials are balanced with each other substantially in a center of a movable range of said impeller in said first chamber;

a control unit that causes said impeller to contact said diaphragm prior to activation of said impeller to rotate, by causing a current to flow through said plurality of coils such that said second attractive force becomes higher than said first attractive force; and
first grooves for a hydrodynamic bearing formed in the one surface of said impeller or in the inner wall of said first chamber facing the one surface, and second grooves for the hydrodynamic bearing formed in the other surface of said impeller or in said diaphragm facing the other surface;
wherein each of said first to third magnetic materials is a permanent magnet.
21. A centrifugal pump apparatus including a housing having first and second chambers partitioned from each other by a diaphragm, an impeller rotatably provided in said first chamber along said diaphragm, for delivering liquid by centrifugal force during rotation, and a drive unit provided in said second chamber for driving said impeller to rotate via said diaphragm, comprising:
a first magnetic material provided in one surface of said impeller;
a second magnetic material provided in an inner wall of said first chamber facing the one surface of said impeller, for attracting said first magnetic material;
a plurality of third magnetic materials provided in the other surface of said impeller, and arranged such that adjacent magnetic polarities thereof are different from each other, wherein
said drive unit includes
a plurality of fourth magnetic materials arranged to face said plurality of third magnetic materials, and
a plurality of coils provided correspondingly to said plurality of fourth magnetic materials, respectively, each being wound around a corresponding one of the fourth magnetic materials for generating a rotating magnetic field, and wherein
during rotation of said impeller, a first attractive force between said first and second magnetic materials and a second attractive force between said plurality of third magnetic materials and said plurality of fourth magnetic materials are balanced with each other substantially in a center of a movable range of said impeller in said first chamber; and

a control unit that causes said impeller to contact said diaphragm prior to activation of said impeller to rotate, by causing a current to flow through said plurality of coils such that said second attractive force becomes greater than said first attractive force.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A system for identifying data connection attributes, comprising:
a connection monitor that detects existence of at least one attribute associated with a data connection such that the at least one attribute describes at least one of a service capability or a trouble condition, associated with the data connection, the at least one of a service capability or a trouble condition comprising debugging capabilities of a port associated with the data connection; and
a signal module that activates operation of a status indicator of the data connection such that a manner of operation of the status indicator is associated with the at least one attribute of the data connection.
2. The system of claim 1, wherein the data connection is one of a universal serial bus (USB) connection, an IEEE 1394 connection, an advanced technology attachment (ATA) connection, a serial advanced technology attachment (SATA) connection a peripheral component interconnect (PCI) connection, a PCI express connection, a personal computer memory card international association bus (PCMCIA) connection, an express card connection, an IEEE 802.11x connection, an IEEE 802.16 connection, a code division multiple access (CDMA) connection, a time division multiple access (TDMA) connection, a global system for mobile communications (GSM) connection, a wireless USB connection, a Bluetooth connection, or an ultra-wide band connection.
3. The system of claim 1, wherein the status indicator includes at least one light.
4. The system of claim 1, further comprising a diagnostic module that identifies the at least one attribute of the data connection.
5. The system of claim 4, wherein the diagnostic module further identifies a severity level of the at least one attribute of the data connection.
6. The system of claim 5, wherein the signal module uses the severity level to activate the operation of the status indicator.
7. The system of claim 1, further comprising a power module that monitors a state of power of the data connection.
8. The system of claim 1, wherein the at least one attribute of the data connection is at least one of an over-reservation of bandwidth, a connection of a high speed device in a full speed port, a failure of a device to properly connect on a port, existence of a configuration of a data connection in violation of a specification that applies to that data connection, an over-current condition, an under-current condition, or a need to use a debugging port.
9. A method for signaling existence of an operational condition associated with a data connection, comprising:
monitoring operational parameters of a data connection;
identifying whether a port associated with the data connection includes debugging capabilities; and
operating a status indicator of the data connection in a predefined manner that is associated with an operational parameter that is outside normal operational boundaries of the data connection.
10. The method of claim 9, wherein monitoring operational parameters of the data connection includes identifying a severity level of the operational parameter that is outside normal operational boundaries of the data connection.
11. The method of claim 9, wherein monitoring operational parameters of the data connection includes identifying the operational parameter that is outside normal operational boundaries of the data connection.
12. The method of claim 11, wherein operating a status indicator includes activating a light associated with the data connection.
13. The method of claim 12, wherein activating a light associated with the data connection includes at least one of flashing a light in a predefined sequence, causing the light to burn steadily, or causing the light to be a preselected color.
14. The method of claim 9, wherein monitoring operational parameters of the data connection includes monitoring power of the data connection.
15. A system for signaling existence of an operational condition associated with a data connection, comprising:
means for monitoring operational parameters of a data connection;
means for identifying whether a port associated with the data connection includes debugging capabilities; and
means for operating a status indicator of the data connection in a predefined manner that is associated with an operational parameter that is outside normal operational boundaries of the data connection.
16. The system of claim 15, wherein the means for monitoring operational parameters of the data connection includes means for identifying a severity level of the operational parameter that is outside normal operational boundaries of the data connection.
17. The system of claim 15, wherein the means for monitoring operational parameters of the data connection includes means for identifying the operational parameter that is outside normal operational boundaries of the data connection.
18. The system of claim 17, wherein the means for operating a status indicator includes means for activating a light associated with the data connection.
19. The system of claim 18, wherein the means for activating a light associated with the data connection includes at least one of means for flashing a light in a predefined sequence, means for causing the light to burn steadily, or means for causing the light to be a preselected color.

1. A latch mechanism incorporated with an electronic display module comprising:
a. a latch housing formed on a panel of the electronic display module;
b. a latch lock plate mounted to the latch housing, the latch housing and the latch lock plate together bounding a cavity; and,
c. a latch, the latch being moveable within the cavity and being guided by the cavity along a latch pathway from a retracted position through an intermediate position to an engaged position, the latch pathway following a linear path between the retracted position and the intermediate position and a rotational path between the intermediate position and the engaged position.
2. The latch mechanism of claim 1, wherein the latch has a body with at least one latch arm on a first end, an attachment fixture on a second end, and opposed posts in a central region.
3. The latch mechanism of claim 2, wherein the cavity includes a pair of opposed slots, the opposed slots being aligned and receiving the opposed posts of the latch.
4. The latch mechanism of claim 2, wherein the latch body has a pair of latch arms, and wherein the latch housing includes slots from which the pair of latch arms extend when the latch is in the intermediate position and when the latch is in the engaged position.
5. The latch mechanism of claim 2, further including a link pivotally connected to the attachment fixture.
6. The latch mechanism of claim 5, wherein the cavity is configured and dimensioned to constrain motion of the link during movement of the latch between the retracted position and the engaged position, but to allow the link to assume an overcenter relationship with the attachment fixture when the latch is in the engaged position.
7. The latch mechanism of claim 6, further comprising an actuator arm, the actuator arm having a first end and a second end, and wherein the link is pivotally attached to the first end of the actuator arm.
8. The latch mechanism of claim 7, wherein the second end of the actuator arm is driven by a gear and the gear is carried by a shaft.
9. The latch mechanism of claim 8, wherein the gear is driven by rotating the shaft.
10. The latch mechanism of claim 9, wherein the shaft driving the gear may be rotated in a first direction to place the link in an overcenter relationship with the latch thereby placing the latch in the engaged position and wherein the shaft may be rotated in a second direction, opposite to the first direction, such that the link is released from the overcenter relationship with the latch and the latch is moved from the engaged position to the intermediate position and then to the retracted position.
11. The latch mechanism of claim 10, further comprising:
a. a second latch housing formed on the panel of the electronic display module;
b. a second latch lock plate mounted to the second latch housing, the second latch housing and the second latch lock plate together bounding a second cavity;
c. a second latch, the second latch having a body with at least one latch arm on a first end, an attachment fixture on a second end, and opposed posts in a central region and being moveable within the second cavity and being guided by the second cavity along a second latch pathway from a second retracted position through a second intermediate position to a second engaged position, the second latch pathway following a second linear path between the second retracted position and the second intermediate position and a second rotational path between the second intermediate position and the second engaged position;
d. a second link pivotally connected to the attachment fixture on the second latch; and,
e. a second actuator arm, the second actuator arm having a first end and a second end, the second link being pivotally attached to the first end of the second actuator arm, and the second end of the second actuator arm being driven by the gear.
12. The latch mechanism of claim 11, wherein the first latch and the second latch are situated in mirror imagelike arrangement, such that both latches are simultaneously in the same respective positions and both latches move simultaneously toward or away from the gear.
13. The latch mechanism of claim 11, wherein a gear support housing carries the gear and guides the first and second actuator arms.
14. The latch mechanism of claim 7, wherein the actuator arm is guided by a support housing.
15. The latch mechanism of claim 14, wherein the support housing is adjacent to the second end of the actuator arm.
16. The latch mechanism of claim 15, wherein the support housing further carries a gear and the actuator arm is driven by the gear.
17. A main housing for an electronic display module comprising:
a. a panel;
b. a peripheral wall bounding the panel;
c. a plurality of latch mechanisms located on the panel adjacent the peripheral wall, each of the latch mechanisms including a latch housing and a latch moveable within the latch housing, the latch moveable along a latch pathway following a linear path between a more compact retracted position and an intermediate position and a rotational path between the intermediate position and an extended engaged position, the latch having at least one latch arm, the latch arm moving with the latch between the extended engaged position and the more compact retracted position; and,
d. at least one actuator system, the at least one actuator system being capable of simultaneously moving at least two of the latches of the plurality of latch mechanisms between the extended engaged position and the more compact retracted position for each latch being moved.
18. The main housing of claim 17, wherein the at least one actuator system simultaneously moves two latches and the two latches are arranged as mirror images.
19. The main housing of claim 17, wherein the panel has two pairs of latch mechanisms, the latch mechanisms of each pair being in a mirror imagelike arrangement to each other, and two actuator systems, each actuator system of the two actuator systems being capable of simultaneously moving the latches of one of the pairs of latch mechanisms.
20. The main housing of claim 19, wherein the panel is substantially rectangular in shape and the peripheral wall is substantially rectangular in shape, the main housing having four corners and four sides.
21. The main housing of claim 20, wherein the latch mechanisms of a pair of latch mechanisms are located adjacent to each of two adjacent corners, and the actuator system for moving the latches of that pair is located adjacent to the side connecting the two adjacent corners.
22. The main housing of claim 21, wherein the latches of that pair when moved move substantially parallel to the side connecting the two adjacent corners.
23. The main housing of claim 22, wherein each actuator system includes a pair of actuator arms, each of the actuator arms being connected to a latch of one of the latch mechanisms.
24. The main housing of claim 23, wherein both the actuator arms of an actuator system are carried by a single support housing.
25. The main housing of claim 24, wherein the support housing includes a gear, the gear being interposed between the actuator arms and simultaneously driving the actuator arms in opposite directions.
26. The main housing of claim 25, wherein the gear is mounted on a shaft.
27. The main housing of claim 26, wherein the gear is driven by the shaft.
28. The main housing of claim 27, wherein the main housing has a front side and a rear side and the shaft may be rotated from the front side or the rear side.
29. The main housing of claim 28, wherein the shaft may be rotated from both the front side and the rear side.
30. The main housing of claim 27, wherein the shaft has an end suitably shaped for rotation by a complementary suitably shaped tool.
31. The main housing of claim 17 in combination with a driver board secured to the panel.
32. The main housing of claim 17 in combination with an LED display panel secured to the panel.
33. The main housing of claim 17 in combination with a louver panel secured to the panel.
34. The main housing of claim 17, in combination with:
a. a louver panel secured to the panel; and,
b. an LED panel interposed between the louver panel and the panel.
35. The main housing of claim 17, in combination with:
a. a louver panel secured to the panel on the front side of the panel;
b. an LED panel interposed between the louver panel and the panel; and,
c. a driver board secured to the panel on the back side of the panel.
36. The main housing of claim 17 in combination with a mounting panel assembly, the mounting panel assembly being adapted to accept the main housing, such that the latches of the main housing engage the mounting panel assembly in the engaged position and allow the main housing to disengage from the mounting panel assembly in the retracted position.
37. The combination of claim 36, wherein the mounting panel assembly has a tab to be engaged by a latch arm in the engaged position.
38. The combination of claim 37, wherein the tab has an alignment hole and the main housing has a locator post, the locator post facilitating alignment of the housing with the mounting panel assembly.
39. The combination of claim 38, wherein each latch has a pair of latch arms, the pair of latch arms of a latch engaging the tab on opposite sides of the locator post when the locator post is inserted in the alignment hole and the latch is in the engaged position.
40. The combination of claim 39, wherein the latch arms allow the locator post to be removed from the alignment hole in the retracted position, such that the main housing may be separated from or aligned to the mounting panel assembly when the latch arms are retracted.
41. A process for attaching a housing to a mounting panel assembly in an electronic sign comprising the steps of:
a. providing a housing and a mounting panel assembly, the housing being complementary to the mounting panel assembly and having a four-point latching system which includes latches actuatable in pairs by an actuator gear for each pair, each of the latches having inboard and outboard latch arms, the housing further having locator posts, and the mounting panel assembly having tabs with alignment holes for accepting the locator posts;
b. rotating the actuator gears to ensure full retraction of the latches towards the actuator gears;
c. positioning and aligning the locator posts with the alignment holes of the mounting panel assembly and bringing the housing into contact with the mounting panel assembly;
d. rotating the actuator gears to position the outboard latch arms and the inboard latch arms over the tabs of the mounting panel assembly; and,
e. continuing rotation of the actuator gears to rotationally position the outboard latch arms and the inboard latch arms against the tabs of the mounting panel assembly.
42. In combination, an electric sign comprising:
a. a mounting panel assembly having a series of vertical plates and a series of horizontal plates, tabs at junctions of vertical plates, and horizontal plates and an alignment hole in each tab, together defining a plurality of alignment and attachment positions;
b. a plurality of electronic display modules, each of the electronic display modules having locator posts and a latch system for alignment and attachment to the alignment and attachment positions of the mounting panel assembly, and wherein each of the electronic display modules includes:
(1) a panel;
(2) a peripheral wall bounding the panel;
(3) a plurality of latch mechanisms located on the panel adjacent the peripheral wall, each of the latch mechanisms including a latch housing and a latch moveable within the latch housing, the latch moveable along a latch pathway following a linear path between a more compact retracted position and an intermediate position and a rotational path between the intermediate position and an extended engaged position, the latch having at least one latch arm, the latch arm moving with the latch between the extended engaged position and the more compact retracted position; and,
(4) at least one actuator system, the at least one actuator system being capable of simultaneously moving at least two of the latches of the plurality of latch mechanisms between the extended engaged position and the more compact retracted position for each latch being moved; and,

c. wherein, when the latches are in the more compact retracted position, the electronic display module may be aligned with the mounting panel assembly such that the locator posts may be inserted into the alignment holes and then the actuator system employed to simultaneously move the latches to the extended engaged position thereby attaching the electronic display module to the mounting panel assembly.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

What is claimed is:

1. A fractional sequence generator comprising
a first n-bit accumulator, A1, for adding a fractional multi-bit input word to a previously accumulated total to provide a new n-bit total, N1, and a carry-out signal, CO1, when said N1 overflows said n-bit accumulator,
an ordered plurality of additional n-bit accumulators, Aj, j2, 3, . . . , K, each Aj adding an n-bit input word to a previously accumulated total to provide a respective new n-bit total, Nj and a respective carry-out signal COj when said Nj overflows said Aj, A2 receiving said N1 as an input word, and each Aj, j>1 receiving Nj1 as an input word, and
a recombination network comprising
an adder providing an output equal to the sum of weighted increments and decrements, each increment and decrement associated with a respective selectively delayed one of said COj, and
a plurality of delay elements for selectively delaying said COj, COK experiencing K-1 units of delay, COj, j<K, experiencing delays of 1, . . . ,j units of delay.
2. The sequence generator of claim 1 further comprising means for applying said output of said adder to adjust a divisor of a divider.
3. The sequence generator of claim 2 wherein said units of said delay comprise cycles of the output of said divider.
4. The sequence generator of claim 3 wherein each of said accumulators performs an addition during each of said cycles of the output of said divider.
5. The sequence generator of claim 2 wherein said divider controls the output frequency of a F-N synthesizer.
6. The sequence generator of claim 1 wherein each increment and decrement associated with one of said COj comprises increments and decrements associated with the jth row of Pascal’s triangle.
7. The sequence generator of claim 6 wherein said jth row of Pascal’s triangle comprises j weights, and wherein the least-delayed COj signal causes said adder to increment said output of said adder by one.
8. An F-N synthesizer comprising
a phase detector receiving inputs from a frequency divider and a reference source and generating an output based on phase differences between said inputs,
a voltage controlled oscillator (VCO) for generating output signals based on said output of said phase detector,
a divider receiving said output signals from said VCO as an input and providing a divided version of said output signals from said VCO as an output,
a divisor control circuit for supplying a time-varying integer divisor signal to said divider, said divisor control circuit comprising means for successively combining at least one integer input with a time sequence of integer increment and decrement inputs to form said time-varying integer divisor signal,
a fractional sequence generator for supplying said time sequence of integer increment and decrement inputs to said divisor control circuit, said fractional sequence generator comprising
a first n-bit accumulator, A1, for adding a fractional multi-bit input word to a previously accumulated total to provide a new n-bit total, N1, and a carry-out signal, CO1, when said N1 overflows said n-bit accumulator,
an ordered plurality of additional n-bit accumulators, Aj, j2, 3, . . . , K, each Aj adding an n-bit input word to a previously accumulated total to provide a respective new n-bit total, Nj and a respective carry-out signal COj when said Nj overflows said Aj, A2 receiving said N1 as an input word, and each Aj, j>1 receiving Nj1 as an input word, and
a recombination network comprising
an adder providing an output equal to the sum of weighted increments and decrements, each increment and decrement associated with a respective selectively delayed one of said COj, and
a plurality of delay elements for selectively delaying said COj, COK experiencing K1 units of delay, COj, j<K, experiencing delays of 1, . . . ,j units of delay.
9. The F-N synthesizer of claim 8 wherein said units of delay comprise cycles of said output to said driver.
10. The F-N synthesizer of claim 8 wherein each of said accumulators performs an addition during each of said cycles of the output of said divider.