Pixart Imaging Incorporated

Faraday Technology Corporation

Pixart Imaging Incorporation

Pixart Imaging Incorporation, R.o.c.

Han-Chi Liu

Yi-Hsien Ko

Ren-Chieh Liu

Jui-Te Chiu

Yi-Cheng Chiu

Chia-Chi Kuo

Kuan Tang

Wen-Cheng Yen

Chih-Huan Wu

En-Feng Hsu

Hsin-Chia Chen

Chih-huan Wu

Chien-Jung Chou

Peng-Sheng Chen

Huan-Kun Pan

Yung-Ju Wen

Hsin-You Ko

Ming-Tsan Kao

Yen-Min Chang

Hui-Hsuan Chen

Chih-Hung Lu

Ching-Lin Chung

Chao-Chi Lee

Peter H Chen

Wooi-Kip Lim

Sen-huang Huang

Jyh-Herng Wang

Jia-Jio Huang

Hsiang-Wei Hwang

Yung-Hung Chen

Tsung-Yi Su

Chia-Nan Hong

Chih-Yang Peng

Eiichi Okamoto

Wei-Chia Huang

There is provided a neural signal detection circuit capable of outputting time difference data or neural data, and including a first temporal circuit and a second temporal circuit. The first temporal circuit is used to store detected voltage energy of a first interval and a second interval as the time difference data. The second temporal circuit is used to store detected voltage energy of the second interval as the neural data. The neural signal detection circuit is used to output the time difference data or the neural data in different operating modes.

Neural signal detection circuit outputting time difference data or neural data

There is provided a pixel circuit for performing analog operation including a photodiode, a first circuit, a second circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first circuit. Within a second interval, the photodiode detects second light energy to be stored in the second circuit. Within an operation interval, the first circuit outputs a first detection signal according to the first light energy and outputs a second detection signal according to the second light energy for being calculated by the operation circuit.

Analog operation circuit for processing pixel data in analog phase

There is provided a logic circuit capable of preventing latch-up. The conducting of a parasitic SCR is prevented by doping an additional N+ active region in the N well region of a PMOS transistor and doping an additional P+ active region in the P well region of an NMOS transistor so as to prevent the occurrence of latch-up.

Logic circuit capable of preventing latch-up

There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.

Pixel circuit outputting pulse width signal and optical sensor using the same

There is provided an optical sensor including a pixel matrix and a readout circuit. The pixel matrix includes multiple pixels arranged in a matrix, and each of the multiple pixels outputs temporal difference pixel data. The readout circuit sequentially reads the pixel matrix using a readout block, and performs the hybrid difference calculation on the temporal difference pixel data of pixels within the readout block. Accordingly, the output of the readout circuit is the data accomplishing temporal difference and spatial difference.

Motion sensor using temporal difference pixels and lift-up detection thereof

There is provided a circuit to improve the sensing efficiency of pixels that uses the induction effect of a capacitor to duplicate a voltage deviation caused by additional electrons and uses a circuit to cancel out the voltage deviation during reading pixel data thereby improving the sensing efficiency.

Sensor circuit having identical capacitors to improve sensing efficiency of pixels and operating method thereof

Pixel circuit having capacitor with identical electrodes to improve sensing efficiency and operating method thereof

Pixel circuit to improve sensing efficiency, image sensor using the same and operating method thereof

Analog operation circuit for operating pulse width signals outputted from pixel circuit

Circuit to improve sensing efficiency of pixels

Pixel circuit outputting pulse width signals and performing analog operation

A method of image sensor apparatus includes: providing pixel array having pixel units arranged in M rows and N columns; providing N parallel column readout circuits each being arranged for reading out pixel data of one corresponding column; disposing a horizontal shift register in row direction coupled to the N parallel column readout circuits, to receive a pulse signal and a clock signal, sequentially shift a phase of the pulse signal according to the clock signal, and scan a corresponding column according to the shifted phase of the pulse signal; and using a column select circuit having N latches to receive a power down digital control signal transmitted from a microcontroller wherein the power down digital control signal is used to disable at least one column readout circuit to enable and select a portion of the set of N parallel column readout circuits.

Image sensor apparatus and method capable of rapidly reading out and processing pixel voltages of pixel array

Growing community of inventors

Hsin-Chu County, Taiwan

Han-Chi Liu