Transmission network having an optical receiver that utilizes dual power pins and a single status pin to lower power consumption, lower manufacturing cost, and increase transmission efficiency
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United States of America Patent
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Jan 24, 2012
Grant Date -
Mar 31, 2011
app pub date -
Dec 7, 2010
filing date -
Jun 2, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A communication network is provided for interconnecting a network of digital systems, such as multimedia devices. Each node of the communication network may include 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 can be powered from a first supply amount, and the signal path of the optical receiver can be supplied from a second supply amount greater than the first supply amount. The first supply amount is provided at all times, and the second supply amount is only provided if activity is detected. A voltage regulator which provides the first supply amount can be beneficially embodied on the same integrated circuit as a network interface to 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.
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