| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 250208300 | With electronic scanning | 6 |
| 20090050788 | System for Sequentially Measuring the Output of a Plurality of Light Sensors Which Generate Current in Response to Incident Light - A system for sequentially measuring the current generated by a plurality of individual current sources such as photodiodes monitoring the light output of individual LEDs representing discrete colors arranged in an array of pixels constituting an area illumination source such as an electronic billboard includes (1) a current measuring circuit connected to each current source/photodiode; (2) a separate switch such as a switching diode connected in series with each current source/photodiode and (3) sequential control means for sequentially enabling each switch/switching diode to conduct current from the current source/photodiode to the current measuring circuit while maintaining all of the remaining switches in the disable state. | 02-26-2009 |
| 20100038520 | METHOD AND APPARATUS FOR DETECTING PRESENCE AND RANGE OF A TARGET OBJECT USING A MULTIMODE DETECTOR - A multifunction detector for detecting energy reflected from the surface, the detector comprising: a focal plane array in communication with the optical receiving path; and an optical receiving path; a read-only integrated circuit in communication with the optical receiving path, integrated with a focal plane array; and a processor programmed to operate the focal plane array and read-out integrated circuit in a first mode to process signals in a first frequency band, and in a second mode to process signals in a second, wider frequency band. | 02-18-2010 |
| 20120006976 | High Resolution, High Speed, Miniaturized Optical Encoder - Disclosed are various embodiments of a single track reflective optical encoder featuring current amplifiers disposed in the signal generating circuit thereof. Voltage amplifiers and their associated feedback resistors are eliminated in the various embodiments disclosed herein, resulting in decreased die size and improved encoder signal accuracy and performance, especially at high speeds The single track optical encoder configurations disclosed herein permit very high resolution reflective optical encoders in small packages to be provided. Methods of making and using such optical encoders are also disclosed. | 01-12-2012 |
| 20130161491 | OPTICAL TOUCH CONTROL MODULE - An optical touch control module for providing at least one sensing area includes: a light-reflecting unit, a first light-sensing unit and a second light-sensing unit. The light-reflecting unit includes a light-reflecting element for partially surrounding the sensing area. The first light-sensing unit is disposed beside one edge of the at least one sensing area and adjacent to one end of the light-reflecting element. The first light-sensing unit includes at least one first light-emitting element, at least one first light-detecting element, and at least one first oscillating reflecting element oscillating depending on time. The second light-sensing unit is disposed beside another edge of the at least one sensing area and adjacent to another end of the light-reflecting element. The second light-sensing unit includes at least one second light-emitting element, at least one second light-detecting element, and at least one second oscillating reflecting element oscillating depending on time. | 06-27-2013 |
| 20140239159 | OPTICAL SENSING DEVICE - An optical sensing device includes a plurality of scanning lines having a plurality of first scanning lines and a plurality of second scanning lines, a plurality of sensing lines, a plurality of reading lines, and a plurality of optical sensing modules electrically connected to the scanning lines. Each optical sensing module includes a first optical sensing unit and a second optical sensing unit, each of which includes a sensing unit, a charge storage unit, and a reading unit. The optical sensing module further includes a plurality of differential amplifiers electrically connected to the corresponding reading lines, for determining the difference between the reading lines, wherein the difference indicates the ambient light variation. A first transistor of the sensing unit of the first optical sensing unit is different to a first transistor of the sensing unit of the second sensing unit in channel width. | 08-28-2014 |
| 20160056185 | SINGLE-PHOTON AVALANCHE DIODE AND AN ARRAY THEREOF - A Single-Photon Avalanche Diode (SPAD) is disclosed. The SPAD may include an active region for detection of incident radiation, and a cover configured to shield part of the active region from the incident radiation. An array is also disclosed and includes SPADs arranged in rows and columns. A method for making the SPAD is also disclosed. | 02-25-2016 |
