Remote level adjustment system for use in a multi-terminal communications system
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United States of America Patent
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Apr 16, 1985
Grant Date -
N/A
app pub date -
Nov 29, 1982
filing date -
Nov 29, 1982
priority date (Note) -
Expired
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Abstract
A remote level adjustment system for use in a multi-terminal communications system wherein a plurality of remote terminals are connected to a master terminal by a distribution network for bi-directional transmission of signals. The remote terminals are adapted to transmit and receive signals on the network and respond to a polling signal by transmitting signals regarding transactions at respective sites. Each remote terminal includes circuitry for responding to level-setting signals by transmitting reply signals, and variable attenuation circuitry for adjusting, in response to a level-setting adjustment signal, the power level of the signals it transmits. The master terminal is adapted to transmit and receive signals on the network and includes program and circuit means for transmitting a polling signal. The master terminal further includes program and circuit means for transmitting level-setting signals, for measuring the power level of reply signals from selected remote terminals and deciding whether to adjust the level, and for transmitting a level-setting adjustment signal, if necessary, to command the selected remote terminal to adjust the setting of its variable attenuation circuitry in accordance with a level-setting protocol.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- C-COR LABS, INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Schrock, Clifford B | Aloha, OR | 6 | 632 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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