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| | Transmission signal ID for analog television broadcasts - Patent 6483547 |
 | | A received analog television service is positively identified using a transmission signal identifier that is inserted into the analog signal at the transmitter side, and extracted at the receiver side. |
 | | In particular, an analog channel which is not the one that would be expected to be recovered from a pre-assigned channel frequency may be received due to weather conditions, terrain, geographic location or antenna orientation, for example. |
 | | Independently of the analog service, channel data is provided which correlates the analog transmission signal identifier to at least one service characteristic, such as the channel name, the title of the particular program event (e.g., television program title), and/or schedule information. |
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