| 摘要 |
A set-top teletext converter decodes the chroma burst signal of a color television signal with the substantially same amplitude and phase as the burst in the television signal. The teletext signal along with its transparent mode signal are decoded. The decoded teletext signal is then re-encoded as a standard television signal using the decoded burst signal. When switching between the encoded teletext signal and the regular television signal under the control of the transparent mode signal, no color shift is present.
|
