Author: claimsbot

1. A mobile device comprising:
one or more non-transitory computer-readable media having instructions; and
one or more processors coupled with the one or more non-transitory computer-readable media and configured to execute the instructions to cause the mobile device to:
send a non-access stratum (NAS) signaling message to a network controller, the NAS signaling message to include a location update request, a tracking area update request, or a service request;
determine whether the NAS signaling message had a low-priority indicator; and
determine whether to start a backoff timer with an extended wait time (EWT) value based on whether the NAS signaling message had a low-priority indicator, wherein said determine whether to start the backoff timer includes start the backoff timer with the EWT value upon a determination that the NAS signaling message did include a low-priority indicator or ignore the EWT value upon a determination that the NAS signaling message did not include a low-priority indicator.
2. The mobile device of claim 1, wherein the one or more processors are further configured to execute the instructions to:
receive the EWT value in a radio resource control (RRC) reject message.
3. The mobile device of claim 1, wherein the one or more processors are further configured to execute the instructions to:
receive the EWT value in a radio resource control (RRC) connection release message.
4. The mobile device of claim 3, wherein the one or more processors are further configured to execute the instructions to:
receive the EWT value from lower layers.
5. The mobile device of claim 4, wherein the one or more processors are further configured to execute the instructions to:
determine, upon receipt of the EWT value, whether a back-off timer associated with the mobile device is running; and
determine whether to start the backoff timer with the received EWT value based at least in part on the determination of whether the back-off timer is running.
6. The mobile device of claim 5, wherein the mobile device comprises a machine type communication (MTC) device.
7. An mobile device comprising:
one or more non-transitory computer-readable media having instructions; and
one or more processors coupled with the one or more non-transitory computer-readable media and configured to execute the instructions to cause the mobile device to:
process a message, received from a network controller, that instructs the mobile device to release a connection, the message to include an extended wait time (EWT) value;
determine whether a procedure is ongoing; and
determine whether to start a backoff timer with the EWT value based on the determination of whether a procedure is ongoing,
wherein the procedure is an attach procedure, a tracking area update procedure, a location update procedure, or a service request procedure; and
wherein the one or more processors are configured to ignore the EWT value upon a determination that the EWT value was received when the procedure is not ongoing.
8. The mobile device of claim 7, wherein the procedure is a location update procedure or a service request procedure.
9. The mobile device of claim 8, wherein the one or more processors are configured to:
start the backoff timer with the EWT value upon a determination that the EWT value was received when the procedure is not ongoing.
10. The mobile device of claim 9, wherein the EWT value is received from lower layers.
11. The mobile device of claim 10, wherein the EWT value is received for a circuit-switched domain.
12. The mobile device of claim 11, wherein the mobile device comprises a mobile station having a touchscreen user interface.
13. A computer-implemented method comprising:
sending, by a mobile device, a message to a network controller;
receiving, by the mobile device, an extended wait time value;
determining, by the mobile device, whether the message included a low-priority indicator; and
determining, by the mobile device, whether to start a backoff timer with the received extended wait time value based on the determining of whether the message included a low-priority indicator, wherein said determining whether to start the backoff timer includes starting the backoff timer with the EWT value upon a determination that the NAS signaling message did include a low-priority indicator or ignoring the EWT value upon a determination that the NAS signaling message did not include a low-priority indicator.
14. The method of claim 13, wherein the network controller is associated with a wireless communication network.
15. At least one non-transitory computer-readable storage medium having instructions stored thereon that, when executed on a mobile device, cause the mobile device to:
send a request message to a network controller;
receive, from the network controller, a response message including an extended wait time (EWT) value;
determine whether the request message had a low-priority indicator; and
determine whether to start the backoff timer with the received EWT value based on the determination of whether the request message had a low-priority indictor, wherein said determine whether to start the backoff timer includes start the backoff timer with the EWT value upon a determination that the NAS signaling message did include a low-priority indicator or ignore the EWT value upon a determination that the NAS signaling message did not include a low-priority indicator.
16. The non-transitory computer-readable storage medium of claim 15, wherein the mobile device is a machine-type communication (MTC) device.
17. The non-transitory computer-readable storage medium of claim 16, wherein the network controller is associated with a wireless communication network.

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 of characterizing relationships among spatio-temporal events, the method comprising:
receiving information specifying the spatio-temporal events and associated categories from one or more sources; and
building, using a processor, a directed acyclic graph (DAG) indicating a relationship among the categories for each of two or more space lag (SL) and time lag (TL) sets, each of the two or more SL and TL sets defining a spatio-temporal boundary such that only the spatio-temporal events and the associated categories with (SL,TL)-neighborhoods inside the respective spatio-temporal boundary are considered in building the respective DAG, the respective (SL,TL)-neighborhood of each of the spatio-temporal events being a polygonal shape defined by the respective SL and the respective TL and the respective (SL,TL)-neighborhood of each of the categories being a union of the (SL,TL)-neighborhoods of the associated spatio-temporal events.
2. The method according to claim 1, wherein, for each of the spatio-temporal boundaries associated with the two or more SL and TL sets, the building the DAG includes considering a maximum number of connections given by:
N
\ue8a0

(

N
–
1

)
2

,
wherein
N is a number of the categories with associated spatio-temporal events within the respective spatio-temporal boundary.
3. The method according to claim 1, wherein the building the DAG, for each of the two or more SL and TL sets, includes beginning with a null set, generating one or more candidate DAGs based on adding one connection, connecting a respective predecessor category associated with predecessor events to a respective successor category associated with successor events, at each iteration, and retaining or discarding the one connection for each of the one or more candidate DAGs based on a pruning process prior to a next iteration.
4. The method according to claim 3, wherein the pruning process includes estimating a statistical significance of the one connection of each of the one or more candidate DAGs.
5. The method according to claim 4, wherein the estimating the statistical significance for each of the one or more candidate DAGs includes counting a number of support events for the respective one connection, the number of support events being a number of the respective successor events which are inside a volume representing the respective predecessor category (SL,TL)-neighborhood, and calculating an expected number of support events in the absence of a relationship between the respective predecessor category and the respective successor category.
6. The method according to claim 5, wherein the estimating the statistical significance for each of the one or more candidate DAGs includes computing a respective P-value based on the respective number of support events and the respective expected number of support events.
7. The method according to claim 5, wherein the calculating the expected number of support events includes estimating a density of the respective successor category.
8. The method according to claim 7, wherein the estimating the density of the respective successor category, for each of the one or more candidate DAGs for each of the two or more SL and TL sets, is done within a sub-region corresponding with an area within a total area for which the information is available.
9. A system to characterize relationships among spatio-temporal events, the system comprising:
an input interface configured to receive information specifying the spatio-temporal events and associated categories from one or more sources; and
a processor configured to build a directed acyclic graph (DAG) indicating a relationship among the categories for each of two or more space lag (SL) and time lag (TL) sets, each of the two or more SL and TL sets defining a spatio-temporal boundary such that only the spatio-temporal events and the associated categories with (SL,TL)-neighborhoods inside the respective spatio-temporal boundary are considered in building the respective DAG, the respective (SL,TL)-neighborhood of each of the spatio-temporal events being a polygonal shape defined by the respective SL and the respective TL and the respective (SL,TL)-neighborhood of each of the categories being a union of the (SL,TL)-neighborhoods of the associated spatio-temporal events.
10. The system according to claim 9, wherein, for each of the spatio-temporal boundaries associated with the two or more SL and TL sets, the DAG includes a maximum number of connections given by:
N
\ue8a0

(

N
–
1

)
2

,
wherein
N is a number of the categories with associated spatio-temporal events within the respective spatio-temporal boundary.
11. The system according to claim 9, wherein, for each of the two or more SL and TL sets, the processor begins with a null set, generates one or more candidate DAGs based on adding one connection, connecting a respective predecessor category associated with predecessor events to a respective successor category associated with successor events, at each iteration, and retains or discards the one connection for each of the one or more candidate DAGs based on estimating a statistical significance of the one connection for each of the one or more candidate DAGs prior to a next iteration.
12. The system according to claim 11, wherein the processor estimates the statistical significance based on a count of a number of support events for the respective one connection, the number of support events being a number of the respective successor events which are inside a volume representing the respective predecessor category (SL,TL)-neighborhood, and a calculation of an expected number of support events in the absence of a relationship between the respective predecessor category and the respective successor category.
13. The system according to claim 12, wherein the processor estimates the statistical significance for each of the one or more candidate DAGs based on a computation of a respective P-value based on the respective number of support events and the respective expected number of support events.
14. The system according to claim 12, wherein the processor calculates the expected number of support events based on estimating a density of the respective successor category.
15. The system according to claim 14, wherein the processor estimates the density of the respective successor category for each of the one or more candidate DAGs for each of the two or more SL and TL sets within a sub-region corresponding with an area within a total area for which the information is available.
16. A computer program product comprising instructions that, when processed by a processor, cause the processor to implement a method of characterizing relationships among spatio-temporal events, the method comprising:
obtaining, from one or more sources, information specifying the spatio-temporal events and associated categories; and
building a directed acyclic graph (DAG) indicating a relationship among the categories for each of two or more space lag (SL) and time lag (TL) sets, each of the two or more SL and TL sets defining a spatio-temporal boundary such that only the spatio-temporal events and the associated categories with (SL,TL)-neighborhoods inside the respective spatio-temporal boundary are considered in building the respective DAG, the respective (SL,TL)-neighborhood of each of the spatio-temporal events being a polygonal shape defined by the respective SL and the respective TL and the respective (SL,TL)-neighborhood of each of the categories being a union of the (SL,TL)-neighborhoods of the associated spatio-temporal events.
17. The computer program product of claim 16, wherein, for each of the spatio-temporal boundaries associated with the two or more SL and TL sets, the building the DAG includes considering a maximum number of connections given by:
N
\ue8a0

(

N
–
1

)
2

,
wherein
N is a number of the categories with associated spatio-temporal events within the respective spatio-temporal boundary.
18. The computer program product according to claim 16, wherein the building the DAG, for each of the two or more SL and TL sets, includes beginning with a null set, generating one or more candidate DAGs based on adding one connection, connecting a respective predecessor category associated with predecessor events to a respective successor category associated with successor events, at each iteration, and retaining or discarding the one connection for each of the one or more candidate DAGs based on a pruning process prior to a next iteration.
19. The computer program product according to claim 18, wherein the pruning process includes estimating a statistical significance of the one connection of each of the one or more candidate DAGs, the estimating the statistical significance for each of the one or more candidate DAGs including counting a number of support events for the respective one connection, the number of support events being a number of the respective successor events which are inside a volume representing the respective predecessor category (SL,TL)-neighborhood, and calculating an expected number of support events in the absence of a relationship between the respective predecessor category and the respective successor category.
20. The computer program product according to claim 19, wherein the calculating the expected number of support events includes estimating a density of the respective successor category, the estimating the density of the respective successor category, for each of the one or more candidate DAGs for each of the two or more SL and TL sets, being done within a sub-region corresponding with an area within a total area for which the information is available.

1. A hydrostatic drive comprising:
a hydraulic pump having an inlet and an outlet;
at least three hydraulic motors configured to be driven by the hydraulic pump;
a first flow divider that is arranged downstream of the hydraulic pump, and that has an inlet connected to the outlet of the hydraulic pump, a first outlet, and a second outlet;
a second flow divider that is arranged upstream of the hydraulic pump, and that has a first inlet, a second inlet, and an outlet connected to the inlet of the hydraulic pump, wherein:
a first hydraulic motor of the at least three hydraulic motors has:
an inlet side connected to the first outlet of the first flow divider; and
an outlet side connected to the first inlet of the second flow divider;

a second hydraulic motor of the at least three hydraulic motors has:
an inlet side connected to the first outlet of the first flow divider; and
an outlet side connected to the second inlet of the second flow divider; and

a third hydraulic motor of the at least three hydraulic motors has:
an inlet side connected to the second outlet of the first flow divider; and
an outlet side connected to the first inlet of the second flow divider.
2. The hydrostatic drive according to claim 1, further comprising a plurality of pressure limiting valves configured to open into a tank, such that:
for each hydraulic motor connected to the first flow divider, a respective pressure limiting valve is connected between the hydraulic motor and a corresponding outlet of the first flow divider; and
for each hydraulic motor connected to the second flow divider, a respective pressure limiting valve is connected between the hydraulic motor and a corresponding inlet of the second flow divider.
3. The hydrostatic drive according to claim 1, further comprising:
a feed pump;
a plurality of replenishing valves configured to open in a pressure medium flow direction away from the feed pump; and
a plurality of feed lines each connected to the feed pump via a respective replenishing valve, such that:
for each hydraulic motor connected to the first flow divider, a respective feed line is connected on one end to a corresponding replenishing valve, and on another end between the hydraulic motor and a corresponding outlet of the first flow divider; and
for each hydraulic motor connected to the second flow divider, a respective pressure limiting valve is connected on one end to a corresponding replenishing valve, and on another end between the hydraulic motor and a corresponding inlet of the second flow divider.
4. The hydrostatic drive according to claim 3, further comprising:
at least one bypass valve configured to control a pressure medium connection between the at least three hydraulic motors and the hydraulic pump, each bypass valve arranged parallel to a respective flow divider.
5. The hydrostatic drive according to claim 4, wherein the at least one bypass valve includes a valve slider configured to be acted on in a first direction of an open position by a pressure between the replenishing valves and the feed pump and configured to be acted on in a second direction of a closed position by a spring force of a valve spring.
6. The hydrostatic drive according to claim 4, wherein the at least one bypass valve includes a valve slider configured to be acted on in a first direction of a closed position with an adjustment force by an electric actuator and configured to be acted on in a second direction of an open position by a spring force of a valve spring.
7. The hydrostatic drive according to claim 6, further comprising:
a switch configured to activate or deactivate the electric actuator by a pivoting angle of a gas pedal of an engine which drives the hydraulic pump or by a pivoting angle of a steering cylinder of a steering system of a vehicle which has the hydrostatic drive.
8. The hydrostatic drive according to claim 1, wherein at least one of the first flow divider and the second flow divider is one of a hydraulic flow dividing valve, a hydraulic external gear machine, and a load-pressure-independent flow distribution controller.
9. The hydrostatic drive according to claim 1, wherein:
the hydrostatic drive is a traction drive; and
a respective hydraulic motor is connected to a respective wheel of the traction drive.
10. The hydrostatic drive according to claim 1, wherein the hydraulic pump is pivotable configured to pivot in order to reverse a direction of rotation of the hydraulic motors.
11. The hydrostatic drive according to claim 1, further comprising a fourth hydraulic motor that is configured to be driven by the hydraulic pump, and that includes:
an inlet side that is connected to the second outlet of the first flow divider; and
an outlet side that is connected to the second inlet of the second flow divider.
12. The hydrostatic drive according to claim 11, further comprising a plurality of pressure limiting valves configured to open into a tank, such that:
for each hydraulic motor connected to the first flow divider, a respective pressure limiting valve is connected between the hydraulic motor and a corresponding outlet of the first flow divider; and
for each hydraulic motor connected to the second flow divider, a respective pressure limiting valve is connected between the hydraulic motor and a corresponding inlet of the second flow divider.
13. The hydrostatic drive according to claim 11, further comprising:
a feed pump;
a plurality of replenishing valves configured to open in a pressure medium flow direction away from the feed pump; and
a plurality of feed lines each connected to the feed pump via a respective replenishing valve, such that:
for each hydraulic motor connected to the first flow divider, a respective feed line is connected on one end to a corresponding replenishing valve, and on another end between the hydraulic motor and a corresponding outlet of the first flow divider; and
for each hydraulic motor connected to the second flow divider, a respective pressure limiting valve is connected on one end to a corresponding replenishing valve, and on another end between the hydraulic motor and a corresponding inlet of the second flow divider.
14. The hydrostatic drive according to claim 11, further comprising:
at least one bypass valve configured to control a pressure medium connection between the at least three hydraulic motors and the hydraulic pump, each bypass valve arranged parallel to a respective flow divider.
15. The hydrostatic drive according to claim 11, wherein at least one of the first flow divider and the second flow divider is one of a hydraulic flow dividing valve, a hydraulic external gear machine, and a load-pressure-independent flow distribution controller.
16. The hydrostatic drive according to claim 11, wherein:
the hydrostatic drive is a traction drive; and
each of the at least three hydraulic motors is connected to a respective wheel of the traction drive.
17. The hydrostatic drive according to claim 1, further comprising:
at least one bypass valve configured to control a pressure medium connection between the at least three hydraulic motors and the hydraulic pump, each bypass valve arranged parallel to a respective flow divider.

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 comparator with an offset compensation function comprising:
a differential circuit provided with differential pair transistors each made up of an MOS transistor and a load circuit;
an output buffer circuit that inverts the phase of an output signal of said differential circuit; and
a feedback path for, when a same voltage is given to both of said differential pair transistors, feeding back the output signal of said output buffer circuit as a substrate bias voltage of either of said differential pair transistors.
2. The comparator according to claim 1, wherein, of said differential pair transistors, the size of the MOS transistor to which the output signal of said output buffer circuit is fed back as a substrate potential is designed to be greater than the size of the other MOS transistor so as to generate an initial offset to prevent a parasitic transistor which exists between the substrate and source of the MOS transistor from turning ON.
3. A DA conversion apparatus comprising:
a circuit for detecting an amount of inputoutput offset using the comparator according to claim 1; and
a circuit for compensating for said detected inputoutput offset.
4. A comparator with an offset compensation function capable of switching between a normal operating mode and offset canceling mode and integrated on a semiconductor substrate, comprising:
transistors forming a differential pair;
a circuit for equalizing the gate potentials of said differential pair transistors only in said offset canceling mode;
a current mirror that operates as a load of said differential pair transistors;
an output stage circuit that includes a first transistor which receives a single end output of said current mirror and a second transistor which is of a conductive type opposite to that of this first transistor;
a phase adjustment circuit that is connected between the gate and drain of said first transistor only in said offset canceling mode;
a path for giving the voltage of the output terminal of said output stage circuit to the substrate of the transistor that receives an input signal out of said differential pair transistors; and
a capacitance element that retains the voltage given to the substrate of the transistor that receives said input signal through said path even after said offset canceling mode is canceled.
5. The comparator according to claim 4, wherein an offset is given beforehand to current capacities of said differential pair transistors.
6. A DA conversion apparatus with an offset compensation function comprising:
a DA converter;
the comparator with an offset canceling function according to claim 4 that compares the output voltage of said DA converter and a reference voltage; and
an offset compensation circuit that compensates the input and output of said DA converter based on the output of said comparator.
7. A DA conversion apparatus with an offset compensation function using negative feedback loop control comprising:
a single inputdifferential output type DA converter;
a differentialsingle conversion circuit that converts the differential output of said DA converter to a single output;
the comparator with an offset canceling function according to claim 4 that compares the output voltage of said differentialsingle conversion circuit with a reference voltage; and
an offset compensation circuit that compensates an offset between the input and output of said DA converter based on the output of said comparator.
8. The DA conversion apparatus according to claim 7, wherein the follow-up capability of said negative feedback control loop is made variable.
9. A DA conversion apparatus with an offset compensation function, comprising:
a single inputdifferential output type DA converter;
a switched capacitor filter that receives the differential outputs of said DA converter as inputs;
a differentialsingle conversion circuit that converts the differential output which is output from said switched capacitor filter to a single output;
the comparator with an offset canceling function according to claim 4 that compares the output voltage of said differentialsingle conversion circuit with a reference voltage; and
an offset compensation circuit that compensates for an offset between the input and output of said DA converter based on the output of said comparator.
10. A CDMA-based radio transmitter that spreadsmodulates a transmission signal, DA-converts the spreadmodulated signal and transmits through an antenna, comprising the DA conversion apparatus with an offset compensation function according to claim 6 for converting said spreadmodulated signal to an analog signal.
11. A method for compensating for an inputoutput offset of said DA converter included in the DA conversion apparatus according to claim 6, comprising the steps of:
changing said comparator to an offset canceling mode and canceling an offset of said comparator by controlling the substrate bias of either of said differential pair transistors through negative feedback control;
returning said comparator to a normal operating mode;
completing an adjustment for canceling an inputoutput offset of said DA converter during a period during which the bias voltage for canceling said offset is retained by said capacitance element incorporated in said comparator.