Digital broadcast receiver unit
A digital broadcast receiver unit for determining the scanning method of the video signal of the selected program when signals multiplexed through a plurality of different scanning methods are received, processing these video signals by an appropriate video signal processor constituting a video encoder, and then outputting the result. This digital broadcast receiver unit includes a demodulator to tune in the channel of the received signal and perform demodulation, a multiplex isolator to isolate the audio, video and other types of data coded from the multiplex signals output from the demodulator, a decoder to decode the video signal and audio signal from the multiplex isolator, a plurality of video processors performing respectively different corresponding scanning methods and connected to an output of the decoder, an output selector to select from among outputs from the plurality of video processors, and a controller to control the output selector and determine the scanning method of the video signal of the selected program and also perform the appropriate processing based on the scanning method for the selected video signal.
1. A digital broadcast receiver comprising:
a tuner which receives a multiplexed signal coded according to a predetermined format, the multiplexed signal having a plurality of different video signal formats including standard definition and high definition formats;
a processor which extracts data of a subject video signal from the multiplexed signal, which decodes the subject video signal according to the predetermined format, and which outputs the decoded signal as a video signal; and
a format-outputter to output in real-time, the type of format of the video signal being outputted from the digital broadcast receiver;
wherein the processor decodes the subject video signal based on the standard definition format when the format of the received signal is formatted according to the standard definition format, and decodes the subject video signal based on the high definition format when the received signal is formatted according to the high definition format.
2. A digital broadcast receiver as claimed in claim 1 , comprising a selectable encoder selectable to encode the subject video signal according to any of a plurality of video signal formats, and wherein the processor automatically selects the selectable encoder to output the video signal in an encoded format as indicated in the data of the subject video signal.
3. A digital broadcast receiver as claimed in claim 1 , where the processor has capability to output the video signal as an analog video signal having a predetermined number of scanning lines.
4. A digital broadcast receiver as claimed in claim 1 , comprising a character unit for adding character information to at least one of the video signal and subject video signal, the character information indicated in the data of the subject video signal.
5. A digital broadcast receiver as claimed in claim 1 , where the digital broadcast receiver is a television-based accessory.
6. A display unit for displaying a digital broadcast signal, comprising:
a tuner which receives a multiplexed signal coded according to a predetermined format, the multiplexed signal having a plurality of different video signal formats including a standard definition format and high definition format;
a processor which extracts data of a subject video signal from the multiplexed signal, which decodes the subject video signal according to the predetermined format, and which outputs the decoded signal as a video signal, wherein the processor decodes the subject video signal based on the standard definition format when the format of the received signal is the standard definition format, and decodes the subject video signal based on the high definition format when the received signal is the high definition format;
a display which processes the video signal and displays the processed signal; and
a format-outputter to convey in real-time, the type of format of the video signal being outputted from the processor unit, to the display.
7. A display unit as claimed in claim 6 , comprising a selectable encoder selectable to encode the subject video signal according to any of a plurality of video signal formats, and wherein the processor automatically selects the selectable encoder to output the video signal in an encoded format as indicated in the data of the subject video signal.
8. A display unit as claimed in claim 6 , where the processor has capability to output the video signal as an analog video signal having a predetermined number of scanning lines.
9. A display unit as claimed in claim 6 , comprising a character unit for adding character information to at least one of the video signal and subject video signal, the character information indicated in the data of the subject video signal.
10. A display unit as claimed in claim 6 , where the display unit is a television.
11. A television (TV) unit for displaying a digital broadcast TV signal, comprising:
a tuner which receives a multiplexed TV signal coded according to a predetermined format, the multiplexed signal having a plurality of different TV video signal formats including a standard definition format and high definition format;
a processor which extracts data of a subject TV video signal from the multiplexed TV signal, which decodes the subject TV video signal according to the predetermined format, and which outputs the decoded TV signal as a TV video signal, wherein the processor decodes the subject video signal based on the standard definition format when the format of the received signal is the standard definition format, and decodes the subject video signal based on the high definition format when the received signal is the high definition format;
a display which processes the TV video signal and displays the processed signal; and
a format-outputter to convey in real-time, the type of format of the TV video signal being outputted from the processor unit, to the display.
12. A TV unit as claimed in claim 11 , comprising a selectable encoder selectable to encode the subject TV video signal according to any of a plurality of TV video signal formats, and wherein the processor automatically selects the selectable encoder to output the TV video signal in an encoded format as indicated in the data of the subject TV video signal.
13. A TV unit as claimed in claim 11 , where the processor has capability to output the TV video signal as an analog TV video signal having a predetermined number of scanning lines.
14. A TV unit as claimed in claim 11 , comprising a character unit for adding character information to at least one of the TV video signal and subject TV video signal, the character information indicated in the data of the subject TV video signal.