Author: claimsbot

1. A power output apparatus comprising:
first and second motor generators,
first and second inverters connected to said first and second motor generators, respectively, and receiving an input voltage from a voltage supply line, and
a control device controlling an operation of said first and second inverters such that AC voltage is generated across neutral points of said first and second motor generators using said input voltage,
wherein said control device controls said first and second inverters in coordination such that an intermediate value between a maximum value and a minimum value of voltage controls for said first and second motor generators is equivalent to an intermediate potential of said input voltage.
2. The power output apparatus according to claim 1, wherein said control device further controls an operation of said first inverter andor said second inverter such that at least one of said first and second motor generators is driven using said input voltage.
3. The power operation apparatus according to claim 1, wherein said control device includes a coordination control unit that controls said first and second inverters in coordination by calculating said intermediate value, and subtracting said calculated intermediate value from each phase voltage control for said first and second motor generators.
4. The power output apparatus according to claim 1, wherein said control device further includes a voltage compensation unit compensating for voltage drop caused by internal impedance of said first and second motor generators.
5. The power output apparatus according to claim 4, wherein said voltage compensation unit calculates a voltage compensation value based on AC current flowing across the neutral points of said first and second motor generators to correct a control value of the AC voltage that is to be generated across the neutral points of said first and second motor generators, using the calculated voltage compensation value.
6. The power output apparatus according to claim 1, further comprising:
a DC power supply, and
an up-converter boosting DC voltage output from said DC power supply and providing the boosted voltage onto said voltage supply line,
wherein said control device further controls an operation of said up-converter such that the DC voltage from said DC power supply is boosted to said input voltage.
7. A vehicle comprising:
the power output apparatus defined in claim 1,
an internal combustion engine coupled to the first motor generator included in said power output apparatus, and
a driving wheel coupled to the second motor generator included in said power output apparatus, and driven by said second motor generator,
wherein the control device included in said power output apparatus controls an operation of the first and second inverters included in said power output apparatus such that said first and second motor generators are driven and AC voltage is generated across the neutral points of said first and second motor generators using said input voltage, and
said first and second motor generators output the AC voltage generated across neutral points of each other to an external electric load electrically connected between said neutral points.
8. A vehicle comprising:
the power output apparatus defined in claim 2,
an internal combustion engine coupled to the first motor generator included in said power output apparatus, and
a driving wheel coupled to the second motor generator included in said power output apparatus, and driven by said second motor generator,
wherein the control device included in said power output apparatus controls an operation of the first and second inverters included in said power output apparatus such that said first and second motor generators are driven and AC voltage is generated across the neutral points of said first and second motor generators using said input voltage, and
said first and second motor generators output the AC voltage generated across neutral points of each other to an external electric load electrically connected between said neutral points.
9. A vehicle comprising:
the power output apparatus defined in claim 3,
an internal combustion engine coupled to the first motor generator included in said power output apparatus, and
a driving wheel coupled to the second motor generator included in said power output apparatus, and driven by said second motor generator,
wherein the control device included in said power output apparatus controls an operation of the first and second inverters included in said power output apparatus such that said first and second motor generators are driven and AC voltage is generated across the neutral points of said first and second motor generators using said input voltage, and
said first and second motor generators output the AC voltage generated across neutral points of each other to an external electric load electrically connected between said neutral points.
10. A vehicle comprising:
the power output apparatus defined in claim 4,
an internal combustion engine coupled to the first motor generator included in said power output apparatus, and
a driving wheel coupled to the second motor generator included in said power output apparatus, and driven by said second motor generator,
wherein the control device included in said power output apparatus controls an operation of the first and second inverters included in said power output apparatus such that said first and second motor generators are driven and AC voltage is generated across the neutral points of said first and second motor generators using said input voltage, and
said first and second motor generators output the AC voltage generated across neutral points of each other to an external electric load electrically connected between said neutral points.
11. A vehicle comprising:
the power output apparatus defined in claim 5,
an internal combustion engine coupled to the first motor generator included in said power output apparatus, and
a driving wheel coupled to the second motor generator included in said power output apparatus, and driven by said second motor generator,
wherein the control device included in said power output apparatus controls an operation of the first and second inverters included in said power output apparatus such that said first and second motor generators are driven and AC voltage is generated across the neutral points of said first and second motor generators using said input voltage, and
said first and second motor generators output the AC voltage generated across neutral points of each other to an external electric load electrically connected between said neutral points.
12. A vehicle comprising:
the power output apparatus defined in claim 6,
an internal combustion engine coupled to the first motor generator included in said power output apparatus, and
a driving wheel coupled to the second motor generator included in said power output apparatus, and driven by said second motor generator,
wherein the control device included in said power output apparatus controls an operation of the first and second inverters included in said power output apparatus such that said first and second motor generators are driven and AC voltage is generated across the neutral points of said first and second motor generators using said input voltage, and
said first and second motor generators output the AC voltage generated across neutral points of each other to an external electric load electrically connected between said neutral points.
13. The power output apparatus according to claim 1, further comprising an output terminal electrically connected to the neutral points of said first and second motor generators to provide the AC voltage generated across the neutral points of said first and second motor generators to an electric load.
14. The vehicle according to claim 7, further comprising an output terminal to provide the AC voltage generated across the neutral points of said first and second motor generators to said external electric load.

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 method for processing a signal, said method comprising the steps of:
precomputing branch metrics for speculative sequences of one or more channel symbols;
selecting a subset of said precomputed branch metrics based on at least one decision from at least one corresponding state using at least two pipeline stages connected in series, wherein each of said pipeline stages comprises at least one functional unit, and wherein said functional unit comprises a pipeline register and a multiplexer; and
selecting a path having a best path metric for a given state.
2. The method of claim 1, wherein an input to said functional unit comprises a subgroup of precomputed branch metrics and an output of said functional unit comprises a selected precomputed branch metric.
3. The method of claim 2, further comprising the step of combining a plurality of said selected precomputed branch metrics into one or more new subgroups for a following stage.
4. The method of claim 3, wherein said combining step is based on a bit pattern of said selected precomputed branch metrics.
5. The method of claim 3, wherein said combining step is based on a trellis structure.
6. The method of claim 3, wherein said following stage has a reduced number of subgroups than a previous stage.
7. The method of claim 1, wherein said processing of said signal is performed using a reduced-state sequence estimation technique, a delayed decision-feedback sequence estimation technique, a parallel decision-feedback equalization technique, or an implementation of a Viterbi algorithm.
8. The method of claim 1, wherein said processing of said signal employs a trellis that includes syndrome information for a parity check code.
9. The method of claim 1, further comprising the steps of:
processing a received signal using an FIR equalizer to generate an equalized received signal; and
processing said equalized received signal using a noise-predictive FIR filter to generate said signal,
wherein channel coefficients used to precompute said branch metrics are a convolution of impulse responses of said FIR equalizer and said noise-predictive FIR filter.
10. The method of claim 1, further comprising the steps of:
processing a received signal using an FIR equalizer to generate an equalized received signal; and
processing said equalized received signal using a plurality of noise-predictive FIR filters to generate a plurality of signals,
wherein said step of precomputing branch metrics uses an output of one of said plurality of noise-predictive FIR filters based on characteristics of the data.
11. The method of claim 1, wherein said decision is an ACS decision.
12. The method of claim 1, further comprising the step of storing survivor symbols in a survivor memory using a trace back architecture, wherein said survivor memory stores said ACS decisions as pointers, and said pointers are used to trace back a survivor path to produce the detected data.
13. A method for processing a signal, said method comprising the steps of:
precomputing branch metrics for speculative sequences of one or more channel symbols;
selecting one of said precomputed branch metrics based on at least one decision from at least one corresponding state using at least one pipeline register,
selecting a path having a best path metric for a given state; and
storing survivor symbols in a survivor memory using a trace back architecture.
14. The method of claim 13, wherein said survivor memory stores said ACS decisions as pointers, and said pointers are used to trace back a survivor path to produce the detected data.

1. A fan duct assembly, comprising:
a fan having a top side, a bottom side opposite to the top side, and a pair of opposite and parallel lateral sides connected with the top and bottom sides; and
a fan duct comprising:
a first open portion, comprising a first opening orienting to a front side of the fan, a pair of opposite and parallel lateral flanges located beside the first opening, each lateral flange having latches for being buckled to a corresponding lateral side of the fan, and a guiding rail perpendicularly extending from the each flange into the first opening, the guiding rails being parallel to the lateral sides of the fan and engaging with the lateral sides of the fan, wherein the fan duct is first brought in an inclined manner to have the guiding rails of the fan duct abutting against the lateral sides of the fan around the top side of the fan with the latches buckled with the lateral sides of the fan and then the fan duct is oriented vertically and moved along the fan from the top side to the bottom side of the fan such that the fan duct is mounted on the front side of the fan; and
a second open portion connecting with the first open portion and having a second opening in communication with the first opening, resilient tabs being formed at opposite edges of the second opening.
2. The fan duct assembly of claim 1, wherein the guiding rail forms a bevel to facilitate mounting the fan duct to the fan at one end thereof.
3. The fan duct assembly of claim 1, wherein the second open portion forms a step adjacent to the first opening, the step abuts against the top side of the fan to restrict the fan duct to move downwardly relative to the fan.
4. The fan duct assembly of claim 1, wherein the second open portion comprises a mounting flange connected with the lateral flanges thereof, for abutting against the fan.
5. An electronic system comprising:
an enclosure comprising a panel;
a heat sink assembly mounted in the enclosure, comprising a heat sink and a fan attached to the heat sink; and
a fan duct comprising a first open portion and a second open portion, the first open portion comprising a first opening, a pair of opposite lateral flanges having latches buckled to the fan, a guiding rail perpendicularly extended inwardly from each of the lateral flanges and engaging with the fan, a bevel formed at one end of the guiding rail to facilitate mounting of the fan duct to the fan, the second open portion comprising a second opening in communication with the first opening, resilient tabs formed at opposite edges of the second opening and abutting against the panel to prevent the fan duct from moving upwardly, and a step formed adjacent to the first opening and abutting against a top portion of the fan to restrict the fan duct to move downwardly relative to the fan.
6. The electronic system of claim 5, wherein the first open portion comprises a mounting flange connected with the lateral flanges thereof, for abutting against the fan.
7. The electronic system of claim 6, wherein the heat sink comprises a heat spreader having four ears, a plurality of fins extending upwardly from the heat spreader, and four fasteners extending through the four ears.
8. The electronic system of claim 7, wherein the mounting flange defines a pair of cutouts at an edge thereof, the cutouts are adjacent to the lateral flanges of the first open portion for permitting passage of the fasteners.
9. The electronic system of claim 5, wherein the fan has a front side, the first opening is oriented and close to the front side of the fan for providing an access of the fan to the fan duct.
10. The electronic system of claim 5, wherein the panel defines a plurality of apertures communicating with the second opening.
11. The electronic system of claim 5, wherein the first open portion comprises a mounting flange connected with the lateral flanges thereof the mounting flange abutting against a bottom portion of the fan, the step and the mounting flange being located at two opposite top and bottom sides of the first opening and cooperatively restricting the fan duct to move relative to the fan.
12. An electronic system comprising:
an enclosure comprising a first panel and a second panel defining a plurality of apertures;
a printed circuit board mounted on the first panel;
a heat generating electronic component mounted on the printed circuit board;
a heat sink mounted on the printed circuit board and thermally engaging with the heat generating electronic component;
a fan attached to the heat sink for generating a force airflow flowing through the heat sink, the fan having two lateral longitudinal sides; and
a fan duct comprising a first open portion with a first opening located close to the fan, a pair of lateral flanges located at lateral sides of the first opening, respectively, each lateral flange having a guiding rail extending in a direction toward the first opening and a latch, the guiding rail and the latch respectively engaging faces of a corresponding longitudinal side of the fan, and a second open portion defining a second opening communicating with the plurality of apertures of the second panel of the enclosure;
wherein the first and second openings are oriented to be perpendicular to each other; and
wherein fan duct further comprises at least one resilient tab extending from second open portion beside the second opening and engaging with the second panel.
13. The electronic system of claim 12, wherein the guiding rail of each of the lateral sides of the first open portion has an end remote from the second open portion, the end having a bevel formed thereon.
14. The electronic system of claim 12, wherein the second open portion of the fan duct forms a step adjacent to the first open portion, the step abutting against a top portion of the fan.
15. The electronic system of claim 14, wherein the first open portion comprises a mounting flange connected with the lateral flanges thereof the mounting flange abutting against a bottom portion of the fan, the step and the mounting flange being located at two opposite top and bottom sides of the first opening and cooperatively restricting the fan duct to move relative to the fan.

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

1-38. (canceled)
39. A method comprising:
before a deployment of a munition to engage a target, performing an integrity check of the munition, the munition comprising a guidance system, performing the integrity check comprising determining if the munition is within an acceptable threshold of engaging the target; and
if the integrity check fails, aborting the deployment of the munition.
40. The method of claim 39, further comprising if the integrity check is successful, deploying the munition.
41. The method of claim 40, further comprising:
performing an additional integrity check of the munition after the deployment of the munition; and
if the additional integrity check fails, aborting the engagement of the target with the munition.
42. The method of claim 39 wherein performing the integrity check of the munition comprises performing the integrity check of a precision guided missile (PGM).
43. The method of claim 39 wherein performing the integrity check of the munition comprises performing the integrity check of a munition having at least one guidance system selected from the group consisting of a laser guidance system, an inertial guidance system, a seeker guidance system and a Global Positioning System (GPS) guidance system.
44. The method of claim 43 wherein said performing the integrity check of the munition comprises performing the integrity check of a munition having a GPS guidance system adapted to receive signals from a guidance integrity system.
45. The method of claim 44 wherein the guidance integrity system comprises a Space Based Augmentation System (SBAS).
46. The method of claim 45 wherein the SBAS comprises a Wide Area Augmentation System (WAAS).
47. The method of claim 39 wherein performing the integrity check comprises performing the integrity check a plurality of times before the munition is deployed.
48. (canceled)
49. The method of claim 41 wherein performing the additional integrity check comprises performing the additional integrity check a plurality of times before the munition engages the target.
50. The method of claim 39 wherein aborting the engagement of the target comprises determining if an integrity error is recoverable;
if the integrity error is recoverable, not aborting the engagement of the munition with the target; and
if the integrity error is not recoverable, aborting the engagement of the munition with the target.
51. The method of claim 41 wherein performing the additional integrity check comprises performing the additional integrity check is at a rate selected from the group consisting of continuously, at predetermined intervals, and on an interrupt basis.
52. The method of claim 39, further comprising performing a final integrity check of the munition before the munition reaches a point of no return.
53. The method of claim 39 wherein aborting the deployment of the munition comprises selecting another munition to deploy.