Power-on reset for transponder

Details Power-on reset for transponder Power-on reset for transponder

2005-12-27

2005-12-27

Zimmerman, Brian (Department: 2635)

Communications: electrical

Selective

Interrogation response

C340S870030, C340S870030

Reexamination Certificate

active

06980084

ABSTRACT:
A power-on reset for a transponder (102, 200, 400) capable of measuring one or more parameters (e.g., temperature, pressure) in an object (e.g., a tire,104) and transmitting a data stream (FIGS.3C,4B) to an external reader/interrogator (106). The transponder typically operates in a passive mode, deriving its power (Vxx, Vcc, Vdd) from an RF interrogation signal received by an antenna system (210, 410), but can also operate in a battery-powered active mode. The transponder includes memory (238, 438) for storing measurements, calibration data, programmable trim settings (436b), transponder ID and the like. A power-on reset circuit (600) prevents operation of the transponder until it is stable, and starts transmission of the data stream at a first bit of the data stream, in order to ensure a first-pass transmission of a complete data stream. It also prevents modulation of the antenna system for data stream transmission if the power levels are too low for stable transponder operation during modulation.

REFERENCES:
patent: 3596509 (1971-08-01), Rafaelli
patent: 3893228 (1975-07-01), George et al.
patent: 4126772 (1978-11-01), Pappas et al.
patent: 4174515 (1979-11-01), Marzolf
patent: 4317216 (1982-02-01), Kaegebein
patent: 4335283 (1982-06-01), Migrin
patent: 4567459 (1986-01-01), Folger et al.
patent: 4578992 (1986-04-01), Galasko et al.
patent: 4695823 (1987-09-01), Vernon
patent: 4701826 (1987-10-01), Mikkor
patent: 4703650 (1987-11-01), Dosjoub et al.
patent: 4893110 (1990-01-01), Hebert
patent: 4909074 (1990-03-01), Gerresheim et al.
patent: 4966034 (1990-10-01), Bock et al.
patent: 5050110 (1991-09-01), Rott
patent: 5054315 (1991-10-01), Dosjoub
patent: 5140851 (1992-08-01), Hettich et al.
patent: 5230243 (1993-07-01), Erich
patent: 5231872 (1993-08-01), Bowler et al.
patent: 5252962 (1993-10-01), Urbas et al.
patent: 5285189 (1994-02-01), Nowicki et al.
patent: 5297424 (1994-03-01), Sackett
patent: 5368082 (1994-11-01), Oare et al.
patent: 5418358 (1995-05-01), Bruhnke et al.
patent: 5451959 (1995-09-01), Schuermann
patent: 5479172 (1995-12-01), Smith et al.
patent: 5528452 (1996-06-01), Ko
patent: 5540092 (1996-07-01), Handfield et al.
patent: 5562787 (1996-10-01), Koch et al.
patent: 5581023 (1996-12-01), Handfield et al.
patent: 5589819 (1996-12-01), Takeda
patent: 5661651 (1997-08-01), Geshke et al.
patent: 5701121 (1997-12-01), Murdoch
patent: 5706565 (1998-01-01), Sparks et al.
patent: 5731754 (1998-03-01), Lee, Jr. et al.
patent: 5824891 (1998-10-01), Monson
patent: 0473569 (1991-08-01), None
patent: 0583690 (1993-08-01), None
patent: 0832765 (1998-04-01), None
patent: 2764977 (1998-12-01), None
patent: WO99/52723 (1999-10-01), None
patent: WO00/02028 (2000-01-01), None
patent: WO00/70552 (2000-11-01), None
patent: WO01/43999 (2001-06-01), None
patent: WO01/44000 (2001-06-01), None

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