21
Wayne T Holcombe: Second-order delta-sigma analog-to-digital converter. Silicon Laboratories, Meyertons Hood Kivlin Kowert & Goetzel P C, Dean M Munyon, Paul T Seegers, August 28, 2012: US08253613 (3 worldwide citation)

In one embodiment, a second-order delta-sigma analog-to-digital converter (ADC) includes a second-order integrator adapted to second-order integrate a value at a first node, where the first node is coupled to an input of the ADC. The ADC also includes a comparator coupled to an output of the second- ...


22
Wayne T Holcombe, Miroslav Svajda: Apparatus and method for display control using ambient light measurement signal from an infrared receiver. Silicon Laboratories, Howison & Arnott, January 11, 2011: US07868294 (3 worldwide citation)

A system having an infrared receiver is shown, where the system includes an infrared receiver circuit configured to receive an infrared data signal using a receive photodiode and compensate for an ambient light level incident on the receive photodiode by generating a DC ambient current signal, where ...


23
Miroslav Svajda, Wayne T Holcombe: Apparatus and method for optical gesture recognition. Silicon Laboratories, February 25, 2014: US08660300 (2 worldwide citation)

An optical gesture recognition system is shown having a first light source and a first optical receiver configured to receive reflected light from an object when the first light source is activated and output a first measured reflectance value corresponding to an amplitude of the reflected light. A ...


24
Wayne T Holcombe: Use of optical reflectance proximity detector for nuisance mitigation in smoke alarms. Google, Kilpatrick Townsend & Stockton, February 10, 2015: US08952822 (2 worldwide citation)

A smoke alarm comprises smoke detection circuitry for detecting smoke and generating a detection signal responsive thereto. Proximity detection circuitry generates a proximity detection signal responsive to detection of an object within in a selected distance of the smoke alarm. Alarm generation cir ...


25
Wayne T Holcombe: Use of optical reflectance proximity detector for nuisance mitigation in smoke alarms. Google, Kilpatrick Townsend & Stockton, September 27, 2016: US09454895 (1 worldwide citation)

Various methods, systems, and devices for identifying a low battery charge of a smoke detector are presented. For example, a device may include a smoke detection sensor that detect smokes and, in response to detecting smoke, generate a smoke detection signal. The device may include battery test circ ...


26
Stephen C Gerber, Wayne T Holcombe, Miroslav Svajda: Apparatus and method for implementing a touchless slider. Silicon Laboratories, January 29, 2013: US08363894 (1 worldwide citation)

A method for gesture recognition in an optical system using a touchless slider is shown. The touchless slider has first and second reference points positioned along an axis in an optical system. The method includes obtaining a plurality of first and second reflectance values by measuring an amplitud ...


27
Miroslav Svajda, Wayne T Holcombe: Systems and methods for advanced monitoring and control using an LED driver in an optical processor. Silicon Laboratories, Meyertons Hood Kivlin Kowert & Goetzel P C, May 13, 2014: US08723149 (1 worldwide citation)

Systems and methods for advanced monitoring and control using an LED driver in an optical processor are described. In an embodiment, a monitoring and control circuit may include a light-emitting diode (LED) driver including a control input, an output, and a node, wherein the output is coupled to an ...


28
Wayne T Holcombe: Use of optical reflectance proximity detector in battery-powered devices. Google, Kilpatrick Townsend & Stockton, August 22, 2017: US09741240

Various methods, systems, and devices for identifying a condition of a battery-powered device are presented. For example, a device may include a smoke detection sensor that detect smokes and, in response to detecting smoke, generate a smoke detection signal. The device may include test circuitry tha ...


29
Wayne T Holcombe, Matthijs D Pardoen: DAA hook switch. Integration Associates, Francissen Patent Law P C, Vernon W Francissen, November 21, 2006: US07139391

A hook switch circuit is shown wherein two high-voltage bipolar transistors, a PNP transistor Q1 and a NPN transistor Q2. that are connected in a regenerative feedback manner to form a bi-stable latch. The regenerative structure permits the use of low beta transistors that may be turned on with a lo ...


30
Wayne T Holcombe, Miroslav Svajda: System and circuit including multiple photo detectors and at least one optical barrier. Silicon Laboratories, Cesari & Reed, R Michael Reed, October 29, 2013: US08569679

A system includes a plurality of photo detectors, which generate signals proportional to incident light. The system further includes an optical barrier adjacent to a surface and includes a control circuit. The optical barrier partially obstructs reflected light from reaching the plurality of photo d ...