| 摘要 |
A picture-in-guide generator has an output adapted to drive a television monitor and an input adapted to receive a television signal. A display generator feeds drive signals to the output synchronized to the television monitor. EPG information is extracted from the television signal and stored in memory. The number of pixels used to represent the television signal is reduced. The reduced number of pixels television signal is stored in memory. The EPG data and the television signal are retrieved from memory and stored in the display generator. The EPG data and the television signal are fed from the display generator to the output in a continuous data stream ordered to produce a picture-in-guide display on the monitor. The picture-in-guide generator is implemented on a single integrated circuit chip along with the circuitry generating the graphics. The addition of a digital tuner to the PIG generator chip allows the PIG generator to capture VBI data at any time whether the viewer is watching the television or not. |
