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US5764099A Expired / Lapsed US ⏱️ 0.0 years remaining

Integrated voltage regulating circuit useful in high voltage electronic encoders

Assignee: Microchip Technology Inc
•
Filing: 1996-03-05
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Granted: 1998-06-09
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Expires: 2016-03-05
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Abstract

Abstract According to the present invention, there is provided an integrated circuit useful in an electronic encoding device having a voltage source, a user interface and a transmitter. In one embodiment the integrated circuit includes a wake-up circuit which generates a signal responsive to an input received from the user interface; power switching logic which provides power from the voltage source to a non-regulated power bus and a voltage regulating circuit, the power switching logic being responsive to the signal from the wake-up circuit; a regulated power bus in communication with the voltage regulating circuit; non-volatile memory in communication with the regulated power bus; encoder logic in communication with the regulated power bus, the encoder logic having output logic which provides a signal to the transmitter.

Inventors

  • 👤 Kent Hewitt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 12:55
CPC Classifications
H; H02; H02J; H02J9/00; H02J9/005

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 109 words
An integrated circuit useful in an electronic encoding device having a high voltage source, a user interface and a transmitter operable with the high voltage source to generate a radio frequency transmission, the integrated circuit comprising: a wake-up circuit which generates a signal responsive to an input received from the user interface; power switching logic responsive to the signal from the wake-up circuit, which provides high voltage to the transmitter and to a voltage regulating circuit: wherein the voltage regulating circuit reduces the high voltage to provide a low voltage to a non-volatile memory and encoder logic, the encoder logic having output logic which provides data to the transmitter.
Claim 2
Dependent Claim 109 words
An integrated circuit useful in an electronic encoding device having a high voltage source, a user interface and a transmitter operable with the high voltage source to generate a radio frequency transmission, the integrated circuit comprising: a wake-up circuit which generates a signal responsive to an input received from the user interface; power switching logic responsive to the signal from the wake-up circuit, which provides high voltage to the transmitter and to a voltage regulating circuit: wherein the voltage regulating circuit reduces the high voltage to provide a low voltage to a non-volatile memory and encoder logic, the encoder logic having output logic which provides data to the transmitter.
Claim 3
Dependent Claim 22 words
An integrated circuit as in claim 1 wherein the voltage regulating circuit comprises a resistor in series connection with a Zener diode.
Claim 4
Dependent Claim 23 words
An electronic encoding device as in claim 1 wherein the maximum voltage level of the high voltage power source is about 12 volts.
Claim 5
Dependent Claim 28 words
An electronic encoding device as in claim 1 wherein the voltage regulating circuit provides a low voltage having a maximum voltage of between about 5.5 and 6 volts.

References Cited (Backward Citations)

US3755806A Cited
US4381552A Cited
US4455623A Cited
US4463646A Cited
US4698748A Cited
US5051936A Cited
US4964121A Cited
US5481222A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2001-06-08 2001-12-08 2002-06-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2005-06-08 2005-12-08 2006-06-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2009-06-08 2009-12-08 2010-06-09 $7700.00 Window Closed / Lapsed

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