Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Panasonic Semiconductor Asia Pte. Ltd.

Panasonic Asia Pacific Pte. Ltd.

Muhammad S/o Abuturab

Gorou Mori

Tien Yew Kang

Chun Kiong Leslie Khoo

Narciso Repollo Semira

Jiong Fu

Etsuji Sato

Shuang Zhang

Hong Meng Tang

Chung Kiong Leslie Khoo

Maung Zabu Ko

A plurality of batteries connected in series are monitored by a plurality of monitor devices, respectively. The monitor devices are connected in series to communicate under the daisy chain communication system. The daisy chain communication system includes a micro-control unit for producing a binary signal, a communication device for converting the binary signal to a pulsating signal. The communication device produces a special code based on an instructions from the micro-control unit. Each monitor device changes between a communication OFF state and a communication ON state. Each monitor device has a signal detector which operates during the communication OFF state and detects the special code, whereby upon detection of the special code, the signal detector generates a wakeup signal so that the monitor device is changed from the communication OFF state to communication ON state.

Wakeup sequence for two-wire daisy chain communication system

An apparatus to detect faulty connection of LED (open/short conditions) which may affect the function of LED display panel is presented. The apparatus basically controls the switches through control algorithm circuit to get the information of LED driver output pins voltage and compare them with two reference voltages to determine the open/short condition of individual LED.

LED matrix open/short detection apparatus and method

Growing community of inventors

Singapore, Singapore

Muhammad S/o Abuturab