GB2446338A - Piezoelectric transducer signal processing circuit - Google Patents

Piezoelectric transducer signal processing circuit

Info

Publication number
GB2446338A
GB2446338A GB0809570A GB0809570A GB2446338A GB 2446338 A GB2446338 A GB 2446338A GB 0809570 A GB0809570 A GB 0809570A GB 0809570 A GB0809570 A GB 0809570A GB 2446338 A GB2446338 A GB 2446338A
Authority
GB
United Kingdom
Prior art keywords
input line
piezoelectric transducer
signal processing
processing circuit
transducer signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0809570A
Other versions
GB0809570D0 (en
GB2446338B (en
Inventor
Eric Scott Micko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suren Systems Ltd
Original Assignee
Suren Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/298,541 external-priority patent/US7352107B2/en
Priority claimed from US11/567,899 external-priority patent/US7622845B2/en
Application filed by Suren Systems Ltd filed Critical Suren Systems Ltd
Publication of GB0809570D0 publication Critical patent/GB0809570D0/en
Publication of GB2446338A publication Critical patent/GB2446338A/en
Application granted granted Critical
Publication of GB2446338B publication Critical patent/GB2446338B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
    • G08B13/191—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems using pyroelectric sensor means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)

Abstract

A piezoelectric detector circuit has at least one input line, a piezoelectric transducer in the input line, an amplifier receiving signals on the input line and generating an output, and one or two feedback elements through which the output is sent back to the input line. The circuit may be a discrete time sampled operational amplifier (DTOA) based transconductance or "voltage output mode" circuit. In one embodiment, protection elements are associated with amplifier input lines to establish a reference voltage.
GB0809570A 2005-12-09 2006-12-08 Piezoelectric transducer signal processing circuit Expired - Fee Related GB2446338B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/298,541 US7352107B2 (en) 2003-03-31 2005-12-09 Transconductance circuit for piezoelectric transducer
US11/567,899 US7622845B2 (en) 2003-03-31 2006-12-07 Piezoelectric transducer signal processing circuit
PCT/US2006/061782 WO2007067973A2 (en) 2005-12-09 2006-12-08 Piezoelectric transducer signal processing circuit

Publications (3)

Publication Number Publication Date
GB0809570D0 GB0809570D0 (en) 2008-07-02
GB2446338A true GB2446338A (en) 2008-08-06
GB2446338B GB2446338B (en) 2011-09-28

Family

ID=39592858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0809570A Expired - Fee Related GB2446338B (en) 2005-12-09 2006-12-08 Piezoelectric transducer signal processing circuit

Country Status (1)

Country Link
GB (1) GB2446338B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11555687B2 (en) * 2019-08-08 2023-01-17 Sigmasense, Llc. Capacitive imaging glove

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916339A (en) * 1986-09-03 1990-04-10 Renishaw Plc Signal processing for contact-sensing probe
US6011415A (en) * 1996-10-21 2000-01-04 Texas Instruments Incorporated Shock sensor circuitry and method for amplifying an input signal including leakage currents
US6456511B1 (en) * 2000-02-17 2002-09-24 Tyco Electronics Corporation Start-up circuit for flyback converter having secondary pulse width modulation
US20040228475A1 (en) * 1997-04-22 2004-11-18 Silicon Laboratories Inc. External resistor and method to minimize power dissipation in DC holding circuitry for a communication system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH655591B (en) * 1980-10-06 1986-04-30
US6321074B1 (en) * 1999-02-18 2001-11-20 Itron, Inc. Apparatus and method for reducing oscillator frequency pulling during AM modulation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916339A (en) * 1986-09-03 1990-04-10 Renishaw Plc Signal processing for contact-sensing probe
US6011415A (en) * 1996-10-21 2000-01-04 Texas Instruments Incorporated Shock sensor circuitry and method for amplifying an input signal including leakage currents
US20040228475A1 (en) * 1997-04-22 2004-11-18 Silicon Laboratories Inc. External resistor and method to minimize power dissipation in DC holding circuitry for a communication system
US6456511B1 (en) * 2000-02-17 2002-09-24 Tyco Electronics Corporation Start-up circuit for flyback converter having secondary pulse width modulation

Also Published As

Publication number Publication date
GB0809570D0 (en) 2008-07-02
GB2446338B (en) 2011-09-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20221208