Verifying 22 kHz tone operation in a set-top box

Details Verifying 22 kHz tone operation in a set-top box Verifying 22 kHz tone operation in a set-top box

2004-08-13

2009-10-20

Pendleton, Brian T (Department: 2425)

Interactive video distribution systems

Satellite video distribution system

Receiver

Reexamination Certificate

active

07607155

ABSTRACT:
A set top box (100) arrangement includes transmitting circuitry (104) for transmitting a message and an emulated reply to the message, and receiver circuitry (105) for receiving the control message and comparing the control message to the emulated reply to the message. The transmitted message and emulated reply message are each a digital satellite equipment control message. The emulated reply message that was received is compared with the reply that was transmitted to verify 22 kHz tone operation of a low noise block downconverter power supply.

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Search report dated Sep. 25, 2005.

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