US4899158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moving object discriminating system
Assignee: Panasonic Electric Works Co Ltd
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Filing: 1988-09-13
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Granted: 1990-02-06
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Expires: 2008-09-13
Abstract
Abstract A moving object discriminating system is arranged so that a signal transmitted from an interrogator is received by a responder where the signal received is processed at a control circuit, the processed signal is phase-modified by own stored data of the responder and returned to the interrogator as an answer signal, and the interrogator discriminates the moving object as based on the answer signal. The responder is thereby sufficiently minimized in size for achieving as improved mountability of the responder with respect to the moving object to be discriminated.
Inventors
- 👤 Takashi Saeki
- 👤 Takayuki Nii
- 👤 Hirotake Fukui
- 👤 Toshiro Mishina
- 👤 Haruo Nakano
- 👤 Hitoshi Sakakibara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:48
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/30; G01; G01S; G01S13/00; G01S13/74; G01S13/76; G01S13/78; G01S13/82; G01S13/825; G07; G07C; G07C9/00; G07C9/20; G07C9/28
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
181 words
A moving object discriminating system comprising an interrogator which transmits a transmission signal, and a responder which is mounted to a moving object and stores data for said moving object, said responder including a control means for processing said transmission signal received from said interrogator and for answering said interrogator, wherein said responder further including a phase modulator which modulates the phase of an answer signal supplied from said responder to said interrogator with said data stored in the responder, and said interrogator further including means for processing said answer signal to discriminate therefrom said moving object, an oscillator which oscillates a non-modulated signal of a fixed frequency toward said responder, and a comparator for comparing the phase of said oscillated signal with that of said answer signal from said responder and a phase shifter disposed between said oscillator and said phase comparator for providing a phase shift to an output of said oscillator so as to provide the phase comparator with a reference signal to permit the phase comparator to generate a sufficient demodulating output for processing said answer signal.
Claim 2
Dependent Claim
181 words
A moving object discriminating system comprising an interrogator which transmits a transmission signal, and a responder which is mounted to a moving object and stores data for said moving object, said responder including a control means for processing said transmission signal received from said interrogator and for answering said interrogator, wherein said responder further including a phase modulator which modulates the phase of an answer signal supplied from said responder to said interrogator with said data stored in the responder, and said interrogator further including means for processing said answer signal to discriminate therefrom said moving object, an oscillator which oscillates a non-modulated signal of a fixed frequency toward said responder, and a comparator for comparing the phase of said oscillated signal with that of said answer signal from said responder and a phase shifter disposed between said oscillator and said phase comparator for providing a phase shift to an output of said oscillator so as to provide the phase comparator with a reference signal to permit the phase comparator to generate a sufficient demodulating output for processing said answer signal.
Claim 3
Dependent Claim
190 words
A moving object discriminating system comprising an interrogator which transmits a transmission signal, and a responder which is mounted to a moving object and stores data for said moving object, said responder including a control means for processing said transmission signal received from said interrogator and for answering said interrogator, wherein said responder further including a phase modulator which modulates the phase of an answer signal supplied from said responder to said interrogator with said data stored in the responder, and said interrogator further including means for processing said answer signal to discriminate therefrom said moving object wherein said interrogator and responder are respectively provided with means for transmitting and receiving said data with a circularly polarized wave, said transmitting and receiving means of the interrogator and responder being of said circularly polarized waves mutually of the same turning direction and wherein a writing wave and a reading wave are employed for said data transmission between said interrogator and said responder, said circularly polarized wave employed for said writing wave being of one turning direction while the circularly polarized wave employed for said reading wave being of opposite turning direction.
Claim 4
Dependent Claim
190 words
A moving object discriminating system comprising an interrogator which transmits a transmission signal, and a responder which is mounted to a moving object and stores data for said moving object, said responder including a control means for processing said transmission signal received from said interrogator and for answering said interrogator, wherein said responder further including a phase modulator which modulates the phase of an answer signal supplied from said responder to said interrogator with said data stored in the responder, and said interrogator further including means for processing said answer signal to discriminate therefrom said moving object wherein said interrogator and responder are respectively provided with means for transmitting and receiving said data with a circularly polarized wave, said transmitting and receiving means of the interrogator and responder being of said circularly polarized waves mutually of the same turning direction and wherein a writing wave and a reading wave are employed for said data transmission between said interrogator and said responder, said circularly polarized wave employed for said writing wave being of one turning direction while the circularly polarized wave employed for said reading wave being of opposite turning direction.
Claim 5
Dependent Claim
140 words
A moving object discriminating system comprising an interrogator which transmits a transmission signal, and a responder which is mounted to a moving object and stores data for said moving object, said responder including a control means for processing said transmission signal received from said interrogator and for answering said interrogator, wherein said responder further including a phase modulator which modulates the phase of an answer signal supplied from said responder to said interrogator with said data stored in the responder, and said interrogator further including means for processing said answer signal to discriminate therefrom said moving object and means for providing a communication finish requesting signal upon termination of a series of communication operations, and said responder further comprises means for interrupting said communication operations with the interrogator for a predetermined time after receipt of said communication finish requesting signal.
Claim 6
Dependent Claim
140 words
A moving object discriminating system comprising an interrogator which transmits a transmission signal, and a responder which is mounted to a moving object and stores data for said moving object, said responder including a control means for processing said transmission signal received from said interrogator and for answering said interrogator, wherein said responder further including a phase modulator which modulates the phase of an answer signal supplied from said responder to said interrogator with said data stored in the responder, and said interrogator further including means for processing said answer signal to discriminate therefrom said moving object and means for providing a communication finish requesting signal upon termination of a series of communication operations, and said responder further comprises means for interrupting said communication operations with the interrogator for a predetermined time after receipt of said communication finish requesting signal.
Claim 7
Dependent Claim
169 words
A moving object discriminating system comprising an interrogator which transmits a transmission signal, and a responder which is mounted to a moving object and stores data for said moving object said responder including a control means for processing said transmission signal received from said interrogator and for answering said interrogator, wherein said responder further including a phase modulator which modulates the phase of an answer signal supplied from said responder to said interrogator with said data stored in the responder, and said interrogator further including means for processing said answer signal to discriminate therefrom said moving object and means for transmitting an answer requesting signal at a predetermined communicating sequence; and said responder comprises means for storing its own communicating state in said communicating sequence of said answer requesting signal from the interrogator, and a state determining means which determines whether or not the answer requesting signal received coincides with said its own communicating state and restricts said transmission of said answer signal when the communicating state is inconsistent.
Claim 8
Dependent Claim
169 words
A moving object discriminating system comprising an interrogator which transmits a transmission signal, and a responder which is mounted to a moving object and stores data for said moving object said responder including a control means for processing said transmission signal received from said interrogator and for answering said interrogator, wherein said responder further including a phase modulator which modulates the phase of an answer signal supplied from said responder to said interrogator with said data stored in the responder, and said interrogator further including means for processing said answer signal to discriminate therefrom said moving object and means for transmitting an answer requesting signal at a predetermined communicating sequence; and said responder comprises means for storing its own communicating state in said communicating sequence of said answer requesting signal from the interrogator, and a state determining means which determines whether or not the answer requesting signal received coincides with said its own communicating state and restricts said transmission of said answer signal when the communicating state is inconsistent.
Claim 9
Dependent Claim
132 words
A moving object discriminating system comprising an interrogator which transmits a transmission signal, and a responder which is mounted to a moving object and stores data for said moving object, said responder including a control means for processing said transmission signal received from said interrogator and for answering said interrogator, wherein said responder further including a phase modulator which modulates the phase of an answer signal supplied from said responder to said interrogator with said date stored in the responder, and said interrogator further including means for processing said answer signal to discriminate therefrom said moving object and wherein said responder further includes means for storing preliminary a specific code signal, and starts a continued operation when a specific code signal received from said interrogator coincides with an stored specific code signal.
Claim 10
Dependent Claim
132 words
A moving object discriminating system comprising an interrogator which transmits a transmission signal, and a responder which is mounted to a moving object and stores data for said moving object, said responder including a control means for processing said transmission signal received from said interrogator and for answering said interrogator, wherein said responder further including a phase modulator which modulates the phase of an answer signal supplied from said responder to said interrogator with said date stored in the responder, and said interrogator further including means for processing said answer signal to discriminate therefrom said moving object and wherein said responder further includes means for storing preliminary a specific code signal, and starts a continued operation when a specific code signal received from said interrogator coincides with an stored specific code signal.
Claim 11
Dependent Claim
38 words
A system according to claim 5, wherein said interrogator adds to said specific code signal an end mark of a different signal level from the specific code signal, said end mark being followed by an answer waiting state.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |