Receiver and receiving-decoding method
AssigneeSony Corporation
InventorsIchiro Hamada, Kenichi Suzuki, Toshio Kato
Life of this patent
Estimating the term…
Abstract
A receiver having a simple configuration for receiving and decoding digital broadcasts and outputting decoded data to an external device and moreover, decoding externally-input data and outputting decoded data to an external device. There are included a received-data demodulating device for receiving and demodulating digital broadcasts and generating a first clock in accordance with the digital broadcast and a clock generating device for generating a third clock by frequency-dividing a predetermined second clock. The first clock is used when the digital broadcast is received and decoded and the third clock is used when externally-inputted data is decoded.
Claims12
A receiver for receiving digital broadcasts, comprising:
- a tuner for receiving digital broadcast signals at a selected frequency;
- a demodulator for demodulating said received digital broadcast signals and for generating a first clock signal for transferring a first transport stream;
- an error corrector for correcting errors in said demodulated digital broadcast signals to provide said first transport stream;
- a digital interface for receiving a second transport stream supplied from an external device;
- and
- a decoding processor for decoding said first and second transport streams, wherein said decoding processor changes clock signals for transferring a transport stream depending on which of said first and second transport streams is being decoded such that said first clock signal is used when said first transport stream is being decoded.
A receiving-decoding method for receiving digital broadcasts, comprising:
- selecting a frequency for receiving a digital broadcast;
- demodulating said received digital broadcast to provide a demodulated digital broadcast and to provide a first clock signal for transferring a first transport stream;
- error-correcting said demodulated digital broadcast to provide said first transport stream;
- receiving a second transport stream from an external device via a digital interface;
- transferring to a decoding processor said first transport stream or said second transport stream for decoding said first transport stream or said second transport stream;
- and
- changing clock signals used for transferring said first transport stream or said second transport stream depending on which of said first and second transport streams is being decoded such that said first clock signal is used when said first transport stream is being decoded.
A receiver for receiving digital signals, comprising:
- a tuner for selecting a frequency for receiving a digital signal;
- a demodulator for demodulating said received digital signal and for generating a first clock signal;
- an error corrector for correcting errors in said demodulated digital signal and for providing a first transport stream;
- a digital interface for providing said first transport stream to an external device and for receiving a second transport stream from said external device;
- a decoder for decoding one of said first and second transport streams;
- a clock generator for generating a second clock signal;
- and
- a clock selector for selecting said first clock signal for transferring said first transport stream from said error corrector to said decoder and for selecting said second clock signal for transferring said second transport stream from said digital interface to said decoder.
A digital signal receiving method, comprising:
- selecting a frequency for receiving a digital signal;
- demodulating said received digital signal;
- generating a first clock signal in association with said demodulation;
- correcting errors in said demodulated digital signal to produce a first transport stream;
- providing said first transport stream to an external device via a digital interface;
- receiving a second transport stream from said external device via said digital interface;
- transferring one of said first and second transport streams to a decoder in accordance with a byte transfer clock signal;
- decoding said one of said first and second transport streams at said decoder;
- generating a second clock signal;
- and
- selecting said first clock signal as said byte transfer clock signal when transferring said first transport stream and said second clock signal as said byte transfer clock signal when transferring said second transport stream.
Dependencies are inferred from the claim text.