Abstract

A dynamic adjusting RFID demodulator circuit includes an envelope detector having an input for receiving a modulated RF signal, a fixed reference generator coupled to the input of an RC filter, an RF level dependent signal path adding to the fixed reference level at higher RF energy levels, a comparator having a first input coupled …

Legal parties

Party
Inventors (applicants): Agustin Ochoa, Bardia Pishdad
Assignees (initial): Cypress Semiconductor Corporation (San Jose, US)

The application was examined by Arnold Kinkead (USPTO dept. 2843)

Claims

  • 1. A method of operating a dynamic adjusting RFID demodulator circuit comprising: …
  • 2. A dynamic adjusting RFID demodulator circuit comprising: …
  • 3. A dynamic adjusting RFID demodulator circuit comprising: …

Cited documents

Patents

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Brief Description of the Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention …

Description

Cross Reference to Related Patent Applications

The present invention claims priority from U.S. Provisional Patent Application Ser. No. 61/495,700 filed Jun. 10, 2011, and is related to U.S. patent application Ser. No. 13/490,163, filed Jun. 6, 2012 …

Detailed Description of the Illustrated Embodiments

Referring now to FIG. 2A , a passive RFID tag 200 according to the invention includes an antenna 202, an analog front end 204, and a digital portion 206 …

More details about Dynamic Adjusting RFID Demodulation Circuit

Miscellaneous patent data

The inventor's name is Pishdad Bardia, the inventor's address - San Diego, CA, the assignee classification - a United States company, the patent extension term is 49 days, the application was published on Jun. 6, 2012, 43 figures are supplied with the description, the invention description is illustrated by 27 drawings, the patent was granted on May. 20, 2014, the assignee location is San Jose (US); its organization is Cypress Semiconductor Corporation, the primary classification Amplitude Modulation Demodulator has been designated to the document, the protection scope is defined by 20 claims, the invention is titled Dynamic Adjusting RFID Demodulation Circuit, the applicant's first name is Agustin, and his last name is Ochoa, the applicant's address - Vista, CA, the exemplary claims include number 1, particularly claims a method of operating a dynamic adjusting RFID demodulator circuit comprising…, numbered 13/490,285 (application), developed by Agustin Ochoa et al., the examination was conducted by Arnold Kinkead (primary examiner, 2843 USPTO department), similar patents are classified under Signals taken from primary and secondary windings, the characteristic being duration, interval, position, frequency, or sequence, using additional transistors in the feedback circuit, the characteristic being amplitude, using as active elements semiconductor devices, Suppressed carrier double sideband type, Including phase or frequency locked loop, in tube switches, Coherer type demodulator, Including amplitude demodulation, the drawings include the following: Overall block diagram of a FRAM, Block diagram of a prior, Dynamic Adjusting RFID Demodulation Circuit, More detailed block diagram of a first, the grant number is 08729960.

Invention classification information

The invention is classified under Pulse or Interrupted Continuous Wave Demodulator, Specified processing arrangement for detected signal, Amplitude Modulation Demodulator, Interrogation response, Having specific distortion, noise or other interference prevention, reduction or compensation, Demodulating pulses which have been modulated with a continuously-variable signal. The designated search classifications include Having specific distortion, noise or other interference prevention, reduction or compensation, Pulse Amplitude Modulation, Interrogation response, Amplitude Modulation Demodulator, Specified processing arrangement for detected signal.

Patent details
Publication number 08729960
Publication date May. 20, 2014
Kind code B2
Application number 13/490,285
Application date Jun. 6, 2012
Application type U
Application series code 13
Extension term 49
National classification 329/347
Total number of claims 20
Exemplary claims 1
Number of drawings 27
Number of figures 43
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