Information processing apparatus and television tuner
First Claim
1. An information processing apparatus comprising:
- an operation receiving unit configured to wait for input of an operation to select an analog television broadcast channel;
an identification signal generating unit configured to generate, on the basis of the selected channel, an analog identification signal for identifying a frequency at which a broadcast signal is broadcasted in an analog format;
an identification signal acquiring unit configured to acquire the analog identification signal from the identification signal generating unit;
a storage unit configured to prestore correspondence information regarding a correspondence between a digital identification signal for identifying a frequency at which a broadcast signal is broadcasted in a digital format and the analog identification signal for each of broadcast stations;
an identification signal conversion unit configured to convert the analog identification signal into the digital identification signal using the correspondence information;
a broadcast receiving unit configured to receive a digital broadcast signal using the frequency identified by the digital identification signal converted by the identification signal conversion unit and extract digital video code and audio code;
a video conversion unit configured to convert the digital video code into an analog video signal having a video format equivalent to a video signal acquired from an analog television broadcast;
an audio conversion unit configured to convert the digital audio code into an analog audio signal having an audio format equivalent to an audio signal acquired from an analog television broadcast;
an analog video acquiring unit configured to acquire the analog video signal; and
an analog sound acquiring unit configured to acquire the analog audio signal.
2 Assignments
0 Petitions
Accused Products
Abstract
An information processor includes an operation unit for receiving a selected analog television channel, an identification signal generator for generating, from the selected channel, an analog identification signal for identifying the frequency of an analog broadcast signal, an identification signal acquirer for acquiring the analog identification signal, a storage for prestoring correspondence information between a digital identification signal indicating a frequency of a digital broadcast signal and the analog identification signal for each of stations, an identification signal converter for converting the analog identification signal into the digital identification signal using the correspondence information, a receiver for receiving a digital broadcast signal identified by the digital identification signal and extract video and audio code, a video converter and an audio converter for converting the code into equivalent analog video and audio signals, and an analog video acquirer and an analog sound acquirer for acquiring the analog video and audio signals.
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Citations
14 Claims
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1. An information processing apparatus comprising:
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an operation receiving unit configured to wait for input of an operation to select an analog television broadcast channel; an identification signal generating unit configured to generate, on the basis of the selected channel, an analog identification signal for identifying a frequency at which a broadcast signal is broadcasted in an analog format; an identification signal acquiring unit configured to acquire the analog identification signal from the identification signal generating unit; a storage unit configured to prestore correspondence information regarding a correspondence between a digital identification signal for identifying a frequency at which a broadcast signal is broadcasted in a digital format and the analog identification signal for each of broadcast stations; an identification signal conversion unit configured to convert the analog identification signal into the digital identification signal using the correspondence information; a broadcast receiving unit configured to receive a digital broadcast signal using the frequency identified by the digital identification signal converted by the identification signal conversion unit and extract digital video code and audio code; a video conversion unit configured to convert the digital video code into an analog video signal having a video format equivalent to a video signal acquired from an analog television broadcast; an audio conversion unit configured to convert the digital audio code into an analog audio signal having an audio format equivalent to an audio signal acquired from an analog television broadcast; an analog video acquiring unit configured to acquire the analog video signal; and an analog sound acquiring unit configured to acquire the analog audio signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A television tuner comprising:
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an identification signal acquiring unit configured to acquire an analog identification signal for identifying a frequency at which a broadcast signal is broadcasted in an analog format, the identification signal being generated in accordance with a television channel selecting operation; a storage unit configured to prestore correspondence information regarding a correspondence between a digital identification signal for identifying a frequency at which a broadcast signal is broadcasted in a digital format and the analog identification information for each of broadcast stations; an identification signal conversion unit configured to convert the analog identification signal into the digital identification signal using the correspondence information; a broadcast receiving unit configured to receive a digital broadcast signal using the frequency identified by the digital identification signal converted by the identification signal conversion unit and extract digital video code and audio code; a video conversion unit configured to convert the digital video code into an analog video signal having a video format equivalent to a video signal acquired from an analog television broadcast; and an audio conversion unit configured to convert the digital audio code into an analog audio signal having an audio format equivalent to an audio signal acquired from an analog television broadcast.
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Specification