TRANSMISSION NETWORK HAVING OPTICAL RECEIVER THAT UTILIZES DUAL POWER PINS AND ONE SINGLE STATUS PIN TO LOWER POWER CONSUMPTION, LOWER MANUFACTURING COST, AND INCREASE TRANSMISSION EFFICIENCY

摘要

PROBLEM TO BE SOLVED: To provide a communication network that interconnects a network of digital systems such as multimedia device.;SOLUTION: Each node of the communication network includes a receiver and a transmitter. The receiver and transmitter of each node can be an optical receiver and transmitter. The optical receiver is preferably powered by two power supply pins, each providing different supply amounts. An activity detector within the receiver is powered from a first supply amount, and a signal path of the optical receiver is supplied from a second supply amount greater than the first supply amount. The first supply amount is constantly provided and the second supply amount is provided only when activity is detected. A voltage regulator which supplies the first supply amount is mounted on the same integrated circuit as a network interface to preferably reduce the manufacturing cost of the network. By powering the activity detector separate from the signal path, power down and power up (normal) operating states are envisioned for reducing power consumption and increasing longevity of the optical receiver and transmitter.;COPYRIGHT: (C)2012,JPO&INPIT