US5451959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transponder arrangement
Assignee: Texas Instruments Deutschland GmbH
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Filing: 1994-06-22
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Granted: 1995-09-19
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Expires: 2014-06-22
Abstract
Abstract A transponder system comprises an interrogation unit for communicating with a plurality of responder units. At least one responder unit receives an interrogation signal from the interrogation unit and returns data as signal information to the interrogation unit in response to the reception of the interrogation signal. The responder unit also includes sensor circuitry sensitive to predetermined physical parameters in the environmental area of the responder unit and, via a data processor, generates data representative of the physical parameter and sends it back to the interrogator as signal information.
Inventors
- 👤 Josef H. Schuermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:06
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10009; G06K7/10019; G06K7/10029; G06K7/10039; A; A01; A01K; A01K11/00; A01K11/006; G01; G01S; G01S13/00; G01S13/74; G01S13/75; G01S13/751; G01S13/758; G01S13/76; G01S13/765; G01S13/78; G06K7/0008; G01S13/767
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
332 words
A transponder system comprising: an interrogation unit for communicating with cooperating responder units comprising: a microprocessor; a transmitter for transmission of at least one RF interrogation signal of a first frequency and terminating after a duration predetermined by the microprocessor, and a receiver for receiving signal information at least at said first frequency and at the termination of the interrogation signal; and a responder unit located in spaced relation with respect to said interrogation unit for receiving said at least one RF interrogation signal transmitted from the transmitter of said interrogation unit and returning data present in said responder as signal information to the receiver of said interrogation unit in response to the reception of said at least on interrogation signal, said responder unit comprising: a single antenna for receiving said interrogation signal and transmitting said data present in said responder unit; an energy accumulator for storing energy contained in said at least one interrogation signal and received by said antenna; a carrier wave generator operable for providing a FSK modulated carrier wave having at least two frequencies, one of said two frequencies being said first frequency of said at least one interrogation signal and a second frequency selectively shifted from said first frequency; a memory for storing identification data and other data; circuitry operably connected to the output of said carrier wave generator for producing control signals for maintaining and modulating the carrier wave; said antenna transmitting the FSK modulated carrier wave with said data contained in said memory from said responder unit back to the receiver of said interrogation unit as signal information; circuitry for initiating operation of said carrier wave generator in response to the power level of the RF interrogation signal received by said responder unit decreasing and the presence of a predetermined energy amount stored in said energy accumulator; and a sensor sensitive to predetermined physical parameters in the environmental area of said responder unit for providing at least some of said data stored in said memory.
Claim 2
Dependent Claim
332 words
A transponder system comprising: an interrogation unit for communicating with cooperating responder units comprising: a microprocessor; a transmitter for transmission of at least one RF interrogation signal of a first frequency and terminating after a duration predetermined by the microprocessor, and a receiver for receiving signal information at least at said first frequency and at the termination of the interrogation signal; and a responder unit located in spaced relation with respect to said interrogation unit for receiving said at least one RF interrogation signal transmitted from the transmitter of said interrogation unit and returning data present in said responder as signal information to the receiver of said interrogation unit in response to the reception of said at least on interrogation signal, said responder unit comprising: a single antenna for receiving said interrogation signal and transmitting said data present in said responder unit; an energy accumulator for storing energy contained in said at least one interrogation signal and received by said antenna; a carrier wave generator operable for providing a FSK modulated carrier wave having at least two frequencies, one of said two frequencies being said first frequency of said at least one interrogation signal and a second frequency selectively shifted from said first frequency; a memory for storing identification data and other data; circuitry operably connected to the output of said carrier wave generator for producing control signals for maintaining and modulating the carrier wave; said antenna transmitting the FSK modulated carrier wave with said data contained in said memory from said responder unit back to the receiver of said interrogation unit as signal information; circuitry for initiating operation of said carrier wave generator in response to the power level of the RF interrogation signal received by said responder unit decreasing and the presence of a predetermined energy amount stored in said energy accumulator; and a sensor sensitive to predetermined physical parameters in the environmental area of said responder unit for providing at least some of said data stored in said memory.
Claim 3
Dependent Claim
227 words
A transponder system comprising: an interrogation unit for communicating with at least one cooperating responder including a transmitter for transmission of at least on RF interrogation signal of a first frequency and of a selected duration, and a receiver for receiving signal information at least at said first frequency; and a responder unit for receiving said at least one interrogation signal from said interrogation unit and returning data present in said responder unit as signal information to said interrogation unit in response to the reception of said at least one interrogation signal, said responder unit comprising: a single antenna for receiving said interrogation signal; a carrier wave generator; a modulator device connected to said carrier wave generator for modulating said carrier wave with said data present in said responder unit; said single antenna also for transmitting the carrier wave modulated with data from said responder unit back to the receiver of said interrogation unit as signal information; memory circuitry in which the data to be returned by said responder unit to said interrogation unit is stored; said memory circuitry connected to said modulator device and for supplying the data stored therein to said modulator device for modulation of said carrier wave; and a sensor sensitive to predetermined physical parameters in the environmental area of said responder unit and operably connected to provide data to said memory circuitry.
Claim 4
Dependent Claim
227 words
A transponder system comprising: an interrogation unit for communicating with at least one cooperating responder including a transmitter for transmission of at least on RF interrogation signal of a first frequency and of a selected duration, and a receiver for receiving signal information at least at said first frequency; and a responder unit for receiving said at least one interrogation signal from said interrogation unit and returning data present in said responder unit as signal information to said interrogation unit in response to the reception of said at least one interrogation signal, said responder unit comprising: a single antenna for receiving said interrogation signal; a carrier wave generator; a modulator device connected to said carrier wave generator for modulating said carrier wave with said data present in said responder unit; said single antenna also for transmitting the carrier wave modulated with data from said responder unit back to the receiver of said interrogation unit as signal information; memory circuitry in which the data to be returned by said responder unit to said interrogation unit is stored; said memory circuitry connected to said modulator device and for supplying the data stored therein to said modulator device for modulation of said carrier wave; and a sensor sensitive to predetermined physical parameters in the environmental area of said responder unit and operably connected to provide data to said memory circuitry.
Claim 5
Dependent Claim
18 words
A transponder system as set forth in claim 2, wherein said memory circuitry is a random access memory.
Claim 6
Dependent Claim
17 words
A transponder system as set forth in claim 2, wherein said sensor circuitry is sensitive to pressure.
Claim 7
Dependent Claim
17 words
A transponder system as set forth in claim 2, wherein said sensory circuitry is sensitive to temperature.
Claim 8
Dependent Claim
19 words
A transponder system as set forth in claim 2, wherein the modulation for said carrier wave is FSK modulation.
Claim 9
Dependent Claim
23 words
A transponder system as set forth in claim 2, wherein said data processor generates data representative of the parameters determined by the sensor.
Claim 10
Dependent Claim
23 words
A transponder system as set forth in claim 2, wherein said responder unit is installed in the carcass of a vehicle pneumatic tire.
Claim 11
Dependent Claim
18 words
A transponder system as set forth in claim 2, wherein said interrogation unit is installed in a vehicle.
Claim 12
Dependent Claim
38 words
A transponder system as set forth in claim 2, and further comprising a shift register and a field effect transistor whereby said data, via said shift register, controls the field effect transistor for modulation of said carrier wave.
Claim 13
Dependent Claim
55 words
A transponder system as set forth in claim 2, and further comprising a data processor operably connected to said memory circuitry and said sensor circuitry for generating the data to be sent back to said interrogation unit and entering said data in said memory circuitry in response to an output signal from said memory circuitry.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-09-18 | 1999-03-20 | 1999-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-18 | 2003-03-20 | 2003-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-18 | 2007-03-20 | 2007-09-19 | $7700.00 | Window Closed / Lapsed |