Patents by Inventor Gary Altman
Gary Altman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8823357Abstract: A radio frequency (RF) power amplifier protection system for a radio. The protection system utilizes a resistive tap connected to the drain of a power amplifier transistor and a high speed voltage detector. The protection system uses short, low-power tests pulses to determine the quality of an antenna load upon tuning the radio to an RF carrier frequency by transmitting the short test pulse. If the measured voltage value exceeds a calibrated value, the power of the RF transmitter is reduced for subsequent operation or the RF transmitter is shut down completely. The invention also includes a system and method for detecting when an antenna is disconnected from a radio using an low frequency AC signal to measure the resistance of an antenna connected to an RF transmitter.Type: GrantFiled: August 24, 2011Date of Patent: September 2, 2014Assignee: Spectralux CorporationInventors: Thomas Ogle Shafer, Tony Monroe Bragg, Gary Altman
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Publication number: 20130049735Abstract: A radio frequency (RF) power amplifier protection system for a radio. The protection system utilizes a resistive tap connected to the drain of a power amplifier transistor and a high speed voltage detector. The protection system uses short, low-power tests pulses to determine the quality of an antenna load upon tuning the radio to an RF carrier frequency by transmitting the short test pulse. If the measured voltage value exceeds a calibrated value, the power of the RF transmitter is reduced for subsequent operation or the RF transmitter is shut down completely. The invention also includes a system and method for detecting when an antenna is disconnected from a radio using an low frequency AC signal to measure the resistance of an antenna connected to an RF transmitter.Type: ApplicationFiled: August 24, 2011Publication date: February 28, 2013Inventors: Thomas Ogle Shafer, Tony Monroe Bragg, Gary Altman
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Patent number: 7729778Abstract: Method, system and apparatus for monitoring target tissue temperatures wherein temperature sensors are configured as passive resonant circuits each with a unique resonating signature at monitoring temperatures extending below a select temperature setpoint. The resonant circuits are configured with an inductor component formed of windings about a ferrite core having a Curie temperature characteristic corresponding with a desired temperature setpoint. By selecting inductor winding turns and capacitance values, unique resonant center frequencies are detectable. Temperature monitoring can be carried out with implants at lower threshold and upper limit temperature responses. Additionally, the lower threshold sensors may be combined with auto-regulated heater implants having Curie transitions at upper temperature limits.Type: GrantFiled: September 30, 2005Date of Patent: June 1, 2010Assignee: Calfacior Corp.Inventors: Philip E. Eggers, John L. Ridihalgh, Mark Mayerchak, Gary Altman
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Patent number: 7695505Abstract: Method, system and apparatus for monitoring target tissue temperatures wherein temperature sensors are configured as passive resonant circuits each with a unique resonating signature at monitoring temperatures extending below a select temperature setpoint. The resonant circuits are configured with an inductor component formed of windings about a ferrite core having a Curie temperature characteristic corresponding with a desired temperature setpoint. By selecting inductor winding turns and capacitance values, unique resonant center frequencies are detectable. Temperature monitoring can be carried out with implants at lower threshold and upper limit temperature responses. Additionally, the lower threshold sensors may be combined with auto-regulated heater implants having Curie transitions at upper temperature limits.Type: GrantFiled: September 30, 2005Date of Patent: April 13, 2010Assignee: Apsara, Inc.Inventors: Philip E. Eggers, John L. Ridihalgh, Mark Mayerchak, Gary Altman
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Patent number: 7684871Abstract: Method, system and apparatus for monitoring target tissue temperatures wherein temperature sensors are configured as passive resonant circuits each with a unique resonating signature at monitoring temperatures extending below a select temperature setpoint. The resonant circuits are configured with an inductor component formed of windings about a ferrite core having a Curie temperature characteristic corresponding with a desired temperature setpoint. By selecting inductor winding turns and capacitance values, unique resonant center frequencies are detectable. Temperature monitoring can be carried out with implants at lower threshold and upper limit temperature responses. Additionally, the lower threshold sensors may be combined with auto-regulated heater implants having Curie transitions at upper temperature limits.Type: GrantFiled: September 30, 2005Date of Patent: March 23, 2010Assignee: Apsara Medical CorporationInventors: Philip E. Eggers, John L. Ridihalgh, Mark Mayerchak, Gary Altman
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Patent number: 7048756Abstract: Method, system and apparatus for monitoring target tissue temperatures wherein temperature sensors are configured as passive resonant circuits each, with a unique resonating signature at monitoring temperatures extending below a select temperature setpoint. The resonant circuits are configured with an inductor component formed of windings about a ferrite core having a Curie temperature characteristic corresponding with a desired temperature setpoint. By selecting inductor winding turns and capacitance values, unique resonant center frequencies are detectable. Temperature monitoring can be carried out with implants at lower threshold and upper limit temperature responses. Additionally, the lower threshold sensors may be combined with auto-regulated heater implants having Curie transitions at upper temperature limits.Type: GrantFiled: December 11, 2003Date of Patent: May 23, 2006Assignee: Apasara Medical CorporationInventors: Philip E. Eggers, John L. Ridihalgh, Mark Mayerchak, Gary Altman
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Publication number: 20060030913Abstract: Method, system and apparatus for monitoring target tissue temperatures wherein temperature sensors are configured as passive resonant circuits each with a unique resonating signature at monitoring temperatures extending below a select temperature setpoint. The resonant circuits are configured with an inductor component formed of windings about a ferrite core having a Curie temperature characteristic corresponding with a desired temperature setpoint. By selecting inductor winding turns and capacitance values, unique resonant center frequencies are detectable. Temperature monitoring can be carried out with implants at lower threshold and upper limit temperature responses. Additionally, the lower threshold sensors may be combined with auto-regulated heater implants having Curie transitions at upper temperature limits.Type: ApplicationFiled: September 30, 2005Publication date: February 9, 2006Inventors: Philip Eggers, John Ridihalgh, Mark Mayerchak, Gary Altman
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Publication number: 20060030912Abstract: Method, system and apparatus for monitoring target tissue temperatures wherein temperature sensors are configured as passive resonant circuits each with a unique resonating signature at monitoring temperatures extending below a select temperature setpoint. The resonant circuits are configured with an inductor component formed of windings about a ferrite core having a Curie temperature characteristic corresponding with a desired temperature setpoint. By selecting inductor winding turns and capacitance values, unique resonant center frequencies are detectable. Temperature monitoring can be carried out with implants at lower threshold and upper limit temperature responses. Additionally, the lower threshold sensors may be combined with auto-regulated heater implants having Curie transitions at upper temperature limits.Type: ApplicationFiled: September 30, 2005Publication date: February 9, 2006Inventors: Philip Eggers, John Ridihalgh, Mark Mayerchak, Gary Altman
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Publication number: 20060030914Abstract: Method, system and apparatus for monitoring target tissue temperatures wherein temperature sensors are configured as passive resonant circuits each with a unique resonating signature at monitoring temperatures extending below a select temperature setpoint. The resonant circuits are configured with an inductor component formed of windings about a ferrite core having a Curie temperature characteristic corresponding with a desired temperature setpoint. By selecting inductor winding turns and capacitance values, unique resonant center frequencies are detectable. Temperature monitoring can be carried out with implants at lower threshold and upper limit temperature responses. Additionally, the lower threshold sensors may be combined with auto-regulated heater implants having Curie transitions at upper temperature limits.Type: ApplicationFiled: September 30, 2005Publication date: February 9, 2006Inventors: Philip Eggers, John Ridihalgh, Mark Mayerchak, Gary Altman
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Publication number: 20060020313Abstract: Method, system and apparatus for monitoring target tissue temperatures wherein temperature sensors are configured as passive resonant circuits each with a unique resonating signature at monitoring temperatures extending below a select temperature setpoint. The resonant circuits are configured with an inductor component formed of windings about a ferrite core having a Curie temperature characteristic corresponding with a desired temperature setpoint. By selecting inductor winding turns and capacitance values, unique resonant center frequencies are detectable. Temperature monitoring can be carried out with implants at lower threshold and upper limit temperature responses. Additionally, the lower threshold sensors may be combined with auto-regulated heater implants having Curie transitions at upper temperature limits.Type: ApplicationFiled: September 30, 2005Publication date: January 26, 2006Inventors: Philip Eggers, John Ridihalgh, Mark Mayerchak, Gary Altman
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Publication number: 20060020312Abstract: Method, system and apparatus for monitoring target tissue temperatures wherein temperature sensors are configured as passive resonant circuits each with a unique resonating signature at monitoring temperatures extending below a select temperature setpoint. The resonant circuits are configured with an inductor component formed of windings about a ferrite core having a Curie temperature characteristic corresponding with a desired temperature setpoint. By selecting inductor winding turns and capacitance values, unique resonant center frequencies are detectable. Temperature monitoring can be carried out with implants at lower threshold and upper limit temperature responses. Additionally, the lower threshold sensors may be combined with auto-regulated heater implants having Curie transitions at upper temperature limits.Type: ApplicationFiled: September 30, 2005Publication date: January 26, 2006Inventors: Philip Eggers, John Ridihalgh, Mark Mayerchak, Gary Altman
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Publication number: 20040122494Abstract: Method, system and apparatus for monitoring target tissue temperatures wherein temperature sensors are configured as passive resonant circuits each, with a unique resonating signature at monitoring temperatures extending below a select temperature setpoint. The resonant circuits are configured with an inductor component formed of windings about a ferrite core having a Curie temperature characteristic corresponding with a desired temperature setpoint. By selecting inductor winding turns and capacitance values, unique resonant center frequencies are detectable. Temperature monitoring can be carried out with implants at lower threshold and upper limit temperature responses. Additionally, the lower threshold sensors may be combined with auto-regulated heater implants having Curie transitions at upper temperature limits.Type: ApplicationFiled: December 11, 2003Publication date: June 24, 2004Inventors: Philip E. Eggers, John L. Ridihalgh, Mark Mayerchak, Gary Altman
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Patent number: 5568815Abstract: An interface circuit for interfacing a semiconductor transducer sensor to a patient vital signs monitor is disclosed. In one embodiment, the interface circuit includes a power supply circuit that receives an excitation power signal generated by the patient monitor, and derives therefrom unregulated and regulated supply voltages for use by the electrical components on the interface circuit. Also generated by the power supply circuit is an appropriate sensor excitation signal for the semiconductor transducer. In another embodiment, the interface circuit further includes receiving circuitry for receiving a sensor output signal generated by the transducer sensor. A scaling circuit then scales that signal into a parameter signal that is proportional to the physiological condition detected by the sensor, and that is also proportional to the excitation power signal generated by the patient monitor.Type: GrantFiled: November 21, 1994Date of Patent: October 29, 1996Assignee: Becton Dickinson and CompanyInventors: John W. Raynes, Gary Altman
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Patent number: 5460183Abstract: A filter for rezeroing an in-vivo pressure sensor is disclosed. The filter operates in a signal mode and a rezero mode. In the signal mode, the filter is a low pass filter which filters out noise. In the rezero mode, the filter is a low pass filter which filters out the dynamic components of an in-vivo pressure signal caused by the rezeroing of the pressure sensor. The filter is switchable between the signal and rezero modes. The filter is implemented by means of an active two pole RC filter with a Butterworth response. A circuit is provided to shorten the time in which the filter reaches its final response characteristic. Also disclosed is a method for processing an output from an in vivo pressure transducer, the output signal comprising noise, a mean pressure signal and a dynamic pressure signal.Type: GrantFiled: September 28, 1993Date of Patent: October 24, 1995Assignee: Becton Dickinson and CompanyInventors: John W. Raynes, Gary Altman
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Patent number: 4726379Abstract: A cardiac pacer uses switched capacitor circuits for maintaining isolation between an atrial channel subsystem and a ventricular channel subsystem. Cross-talk between the channels is prevented by the switched capacitor circuits which may include two sampling switches, a sampling capacitor, two transfer switches, and a filter. The switched capacitor circuits are disposed in series between the corresponding channel lead and the corresponding sensing circuit for that channel. An arrangement of switches and a corresponding controlling arrangement are used to change the mode of sensing and pacing of each channel independent of the mode used by the other channel. That is, each channel subsystem is independently operable for bipolar sensing, bipolar pacing, unipolar sensing, and unipolar pacing.Type: GrantFiled: November 14, 1985Date of Patent: February 23, 1988Assignee: Cardiac Control Systems, Inc.Inventors: Gary Altman, Alan H. Ostroff