US5952940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moving-body communication device
Assignee: Denso Corp
•
Filing: 1998-07-15
•
Granted: 1999-09-14
•
Expires: 2018-07-15
Abstract
Abstract When a vehicle-mounted device receives a FCM signal from a road-side communication device, the vehicle-mounted device receives or transmits a data signal in accordance with a link direction and a time slot specified by the FCM signal. When the vehicle-mounted device does not receive a signal to be received within an expected time, or when it transmits an ACK signal which is a last signal of communication, retry processing starts. In this retry processing, the vehicle-mounted device determines the contents of communication processing to be next carried out from both the contents of the signal transmitted from the road-side communication device and the contents of the last time communication processing.
Inventors
- 👤 Manabu Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:04
CPC Classifications
G; G07; G07B; G07B15/00; G07B15/06; G07B15/063; G08; G08G; G08G1/00; G08G1/01; G08G1/017
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
246 words
A moving-body communication device which is mounted on a moving body and starts to communicate with an interrogator in response to a signal from the interrogator to execute a sequence of communication processing when passing through a communication area of the interrogator, said moving-body communication device comprising: a communication control device for carrying out a retry processing which controls progress of said communication processing to be continued in consideration of a progressing state of said communication processing which has already been carried out, when the moving-body communication device does not receive a signal that is transmitted from the interrogator and is to be received thereby within an expected time, wherein said communication control device allows a data signal to be received or to be transmitted in accordance with a link direction representing that the data signal is to be received by said moving-body communication device or is to be transmitted from said moving-body communication device, said link direction being specified by the signal transmitted from said interrogator, and wherein said communication control device carries out a step of said communication processing in accordance with contents of a signal transmitted from said interrogator after said retry processing starts, when the link direction specified by the signal transmitted from said interrogator after said retry processing starts is different from that specified by the signal from said interrogator immediately before said retry processing starts and when the progressing state of said communication processing is not in a last step.
Claim 2
Dependent Claim
246 words
A moving-body communication device which is mounted on a moving body and starts to communicate with an interrogator in response to a signal from the interrogator to execute a sequence of communication processing when passing through a communication area of the interrogator, said moving-body communication device comprising: a communication control device for carrying out a retry processing which controls progress of said communication processing to be continued in consideration of a progressing state of said communication processing which has already been carried out, when the moving-body communication device does not receive a signal that is transmitted from the interrogator and is to be received thereby within an expected time, wherein said communication control device allows a data signal to be received or to be transmitted in accordance with a link direction representing that the data signal is to be received by said moving-body communication device or is to be transmitted from said moving-body communication device, said link direction being specified by the signal transmitted from said interrogator, and wherein said communication control device carries out a step of said communication processing in accordance with contents of a signal transmitted from said interrogator after said retry processing starts, when the link direction specified by the signal transmitted from said interrogator after said retry processing starts is different from that specified by the signal from said interrogator immediately before said retry processing starts and when the progressing state of said communication processing is not in a last step.
Claim 3
Dependent Claim
40 words
A moving-body communication device according to claim 1, wherein said communication control device controls progress of said communication processing in accordance with contents of a signal that said moving-body communication device receives from said interrogator after said retry processing starts.
Claim 4
Dependent Claim
48 words
A moving-body communication device according to claim 2, wherein said communication control device stops said communication processing and starts communication again from the beginning when said moving body communication device does not receive a signal from said interrogator within a predetermined retry time after said retry processing starts.
Claim 5
Dependent Claim
34 words
A moving-body communication device according to claim 1, wherein said communication control device allows the data signal to be received or to be transmitted at timing specified by the signal transmitted from said interrogator.
Claim 6
Dependent Claim
34 words
A moving-body communication device according to claim 1, wherein communication control device allows a response signal to be transmitted at timing specified by the signal transmitted from said interrogator to start to communicate therewith.
Claim 7
Dependent Claim
67 words
A moving-body communication device according to claim 1, wherein said communication control device carries out a step of said communication processing identical to that carried out immediately before said retry processing starts, when the link direction specified by the signal transmitted from said interrogator after said retry processing starts is the same as that specified by the signal from said interrogator immediately before said retry processing starts.
Claim 8
Dependent Claim
71 words
A moving-body communication device according to claim 1, wherein said communication control device carries out said retry processing after a last signal of said communication processing is transmitted from said moving-body communication device, and said communication control determines that said communication processing is completed when said moving-body communication device receives a signal which does not include an instruction with respect to the link direction from said interrogator in said retry processing.
Claim 9
Dependent Claim
229 words
A moving-body communication device which is mounted on a moving body and starts to communicate with an interrogator in response to a signal from the interrogator to execute a sequence of communication processing when passing through a communication area of the interrogator, said moving-body communication device comprising: a communication control device for carrying out a retry processing which controls progress of said communication processing to be continued in consideration of a progressing state of said communication processing which has already been carried out, when the moving-body communication device does not receive a signal that is transmitted from the interrogator and is to be received thereby within an expected time, wherein said communication control device allows a data signal to be received or to be transmitted in accordance with a link direction representing that the data signal is to be received by said moving-body communication device or is to be transmitted from said moving-body communication device, said link direction being specified by the signal transmitted from said interrogator, and wherein said communication control device stops said communication processing as it is incomplete, when the link direction specified by the signal transmitted from said interrogator after said retry processing starts is different from that specified by the signal from said interrogator immediately before said retry processing starts and when the progressing state of said communication processing is in a last step.
Claim 10
Dependent Claim
229 words
A moving-body communication device which is mounted on a moving body and starts to communicate with an interrogator in response to a signal from the interrogator to execute a sequence of communication processing when passing through a communication area of the interrogator, said moving-body communication device comprising: a communication control device for carrying out a retry processing which controls progress of said communication processing to be continued in consideration of a progressing state of said communication processing which has already been carried out, when the moving-body communication device does not receive a signal that is transmitted from the interrogator and is to be received thereby within an expected time, wherein said communication control device allows a data signal to be received or to be transmitted in accordance with a link direction representing that the data signal is to be received by said moving-body communication device or is to be transmitted from said moving-body communication device, said link direction being specified by the signal transmitted from said interrogator, and wherein said communication control device stops said communication processing as it is incomplete, when the link direction specified by the signal transmitted from said interrogator after said retry processing starts is different from that specified by the signal from said interrogator immediately before said retry processing starts and when the progressing state of said communication processing is in a last step.
Claim 11
Dependent Claim
222 words
A moving-body communication device which is mounted on a moving body and starts to communicate with an interrogator in response to a signal from the interrogator to execute a sequence of communication processing when passing through a communication area of the interrogator, said moving-body communication device comprising: a communication control device for carrying out a retry processing which controls progress of said communication processing to be continued in consideration of a progressing state of said communication processing which has already been carried out, when the moving-body communication device does not receive a signal that is transmitted from the interrogator and is to be received thereby within an expected time, wherein said communication control device allows a data signal to be received or to be transmitted in accordance with a link direction representing that the data signal is to be received by said moving-body communication device or is to be transmitted from said moving-body communication device, said link direction being specified by the signal transmitted from said interrogator, and wherein said communication control device determines that said communication processing is completed, when said moving-body communication device receives a signal which does not include an instruction with respect to the link direction from said interrogator after said retry processing starts and when the progressing state of said communication processing is in a last step.
Claim 12
Dependent Claim
222 words
A moving-body communication device which is mounted on a moving body and starts to communicate with an interrogator in response to a signal from the interrogator to execute a sequence of communication processing when passing through a communication area of the interrogator, said moving-body communication device comprising: a communication control device for carrying out a retry processing which controls progress of said communication processing to be continued in consideration of a progressing state of said communication processing which has already been carried out, when the moving-body communication device does not receive a signal that is transmitted from the interrogator and is to be received thereby within an expected time, wherein said communication control device allows a data signal to be received or to be transmitted in accordance with a link direction representing that the data signal is to be received by said moving-body communication device or is to be transmitted from said moving-body communication device, said link direction being specified by the signal transmitted from said interrogator, and wherein said communication control device determines that said communication processing is completed, when said moving-body communication device receives a signal which does not include an instruction with respect to the link direction from said interrogator after said retry processing starts and when the progressing state of said communication processing is in a last step.
Claim 13
Dependent Claim
224 words
A moving-body communication device which is mounted on a moving body and starts to communicate with an interrogator in response to a signal from the interrogator to execute a sequence of communication processing when passing through a communication area of the interrogator, said moving-body communication device comprising: a communication control device for carrying out a retry processing which controls progress of said communication processing to be continued in consideration of a progressing state of said communication processing which has already been carried out, when the moving-body communication device does not receive a signal that is transmitted from the interrogator and is to be received thereby within an expected time, wherein said communication control device allows a data signal to be received or to be transmitted in accordance with a link direction representing that the data signal is to be received by said moving-body communication device or is to be transmitted from said moving-body communication device, said link direction being specified by the signal transmitted from said interrogator, and wherein said communication control device stops said communication processing as it is incomplete, when said moving-body communication device receives a signal which does not include an instruction with respect to the link direction from said interrogator after said retry processing starts and when the progressing state of said communication processing is not in a last step.
Claim 14
Dependent Claim
224 words
A moving-body communication device which is mounted on a moving body and starts to communicate with an interrogator in response to a signal from the interrogator to execute a sequence of communication processing when passing through a communication area of the interrogator, said moving-body communication device comprising: a communication control device for carrying out a retry processing which controls progress of said communication processing to be continued in consideration of a progressing state of said communication processing which has already been carried out, when the moving-body communication device does not receive a signal that is transmitted from the interrogator and is to be received thereby within an expected time, wherein said communication control device allows a data signal to be received or to be transmitted in accordance with a link direction representing that the data signal is to be received by said moving-body communication device or is to be transmitted from said moving-body communication device, said link direction being specified by the signal transmitted from said interrogator, and wherein said communication control device stops said communication processing as it is incomplete, when said moving-body communication device receives a signal which does not include an instruction with respect to the link direction from said interrogator after said retry processing starts and when the progressing state of said communication processing is not in a last step.
Claim 15
Dependent Claim
217 words
A vehicle-mounted device which is mounted on a vehicle and starts to communicate with a road-side communication device in response to a radio signal from said road-side communication device to execute a sequence of communication processing when passing through a communication area of said road-side communication device, said moving-body communication device comprising: a communication control device for determining a step of said communication processing to be continued when deciding an occurrence of a reception error of an acknowledgement signal from contents of last time communication processing and contents of present communication processing, wherein said communication control device allows a data signal to be received or to be transmitted in accordance with a link direction representing that the data signal is to be received by said vehicle-mounted device or is to be transmitted from said vehicle-mounted device, said link direction being specified by the signal transmitted from said road-side communication device, and wherein said communication control device decides that the reception error of the acknowledgement signal occurs at said road-side communication device when the signal transmitted from said road-side communication device in said present communication processing has the same link direction as that specified by the signal of said last time communication processing after said acknowledgement signal is transmitted from the vehicle-mounted device to said road-side communication device.
Claim 16
Dependent Claim
217 words
A vehicle-mounted device which is mounted on a vehicle and starts to communicate with a road-side communication device in response to a radio signal from said road-side communication device to execute a sequence of communication processing when passing through a communication area of said road-side communication device, said moving-body communication device comprising: a communication control device for determining a step of said communication processing to be continued when deciding an occurrence of a reception error of an acknowledgement signal from contents of last time communication processing and contents of present communication processing, wherein said communication control device allows a data signal to be received or to be transmitted in accordance with a link direction representing that the data signal is to be received by said vehicle-mounted device or is to be transmitted from said vehicle-mounted device, said link direction being specified by the signal transmitted from said road-side communication device, and wherein said communication control device decides that the reception error of the acknowledgement signal occurs at said road-side communication device when the signal transmitted from said road-side communication device in said present communication processing has the same link direction as that specified by the signal of said last time communication processing after said acknowledgement signal is transmitted from the vehicle-mounted device to said road-side communication device.
Claim 17
Dependent Claim
37 words
A vehicle-mounted device according to claim 11, wherein said communication control device prohibits carrying out a step of said communication processing in accordance with the signal transmitted from said road-side communication device in said present communication processing.
Claim 18
Dependent Claim
36 words
A vehicle-mounted device according to claim 12, wherein said communication control device allows the acknowledgement signal to be transmitted again in response to the signal transmitted from said road-side communication device in said present communication processing.
References Cited (Backward Citations)
JPS62183231A
Cited
US5554984A
Cited
US5541928A
Cited
US5640156A
Cited
US5751227A
Cited
US5581249A
Cited
US5705996A
Cited
US5777565A
Cited
US5771008A
Cited
JPH09134494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-09-13 | 2003-03-15 | 2003-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-13 | 2007-03-15 | 2007-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-13 | 2011-03-15 | 2011-09-14 | $7700.00 | Window Closed / Lapsed |