Content Delivery to a Digital TV Using a Low-Power Frequency Converted RF Signal
First Claim
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1. A method of tuning a transmitter to transmit on open channels comprising:
- receiving signals at an input of a tuner;
scanning the tuner across a range of channels, each channel corresponding to a frequency range;
detecting in a first channel, within the range of channels, a signal having a strength below than a certain threshold;
generating data to be transmitted such that the data can be received by at least one local television in an open channel; and
controlling a transmitter to wirelessly transmit the data in the first channel such that the data can be received by the at least one local television tuned to the first channel.
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Abstract
A simple antenna is connected to the RF input port on a conventional digital TV to receive video content from a plurality of video content sources wirelessly. The wireless RF transmission by a local transmitter has a range generally limited to within a home or room. The low power RF transmission is on a carrier frequency that is legally authorized by the FCC in frequency and power level. To identify the open channels for the RF transmission, a tuner scans for weak channels, and the transmitter is tuned to transmit on the detected weak channels.
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Citations
20 Claims
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1. A method of tuning a transmitter to transmit on open channels comprising:
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receiving signals at an input of a tuner; scanning the tuner across a range of channels, each channel corresponding to a frequency range; detecting in a first channel, within the range of channels, a signal having a strength below than a certain threshold; generating data to be transmitted such that the data can be received by at least one local television in an open channel; and controlling a transmitter to wirelessly transmit the data in the first channel such that the data can be received by the at least one local television tuned to the first channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification