Method and apparatus for legacy analog video interconnections in a set-top box for personal video recording applications
First Claim
1. A television signal processing and recording system for handling both digital and analog video signals, said system comprising:
- a video decoder in an analog signal path for converting an analog signal to a digital signal;
an encoder for compressing said digital signal output by said video recorder; and
a connection for routing said compressed digital signal into a digital signal path in which said compressed digital signal is either decompressed with a decoder and output to a television set or recorded on a digital data storage device.
1 Assignment
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Accused Products
Abstract
A television signal processing system, such as a set-top box and a personal video recorder, that handles both digital and legacy analogy system can be simplified to minimize the required connections between system components. Digital signals are demultiplexed and recorded or decompressed and output to a television set. Analog signals are decoded, or converted to digital, and then compressed. The compressed signal can be demultiplexed and recorded or demultiplexed, decompressed and output to a television set. In either case, only a single connection is required between the processing circuitry and the television set, and between the processing circuitry and the signal recording circuitry and hardware.
17 Citations
27 Claims
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1. A television signal processing and recording system for handling both digital and analog video signals, said system comprising:
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a video decoder in an analog signal path for converting an analog signal to a digital signal;
an encoder for compressing said digital signal output by said video recorder; and
a connection for routing said compressed digital signal into a digital signal path in which said compressed digital signal is either decompressed with a decoder and output to a television set or recorded on a digital data storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20, 21)
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12. A method of processing and recording a television signal that handles both digital and analog video signals, said method comprising:
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converting an analog signal to a digital signal; and
compressing and decompressing said digital signal before outputting said digital signal to a television set.
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18. A system for processing and recording a television signal that handles both digital and analog video signals, said system comprising:
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means for converting an analog signal to a digital signal;
means for compressing and decompressing said digital signal.
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22. A television signal processing and recording system for handling both digital and analog video signals, said system comprising:
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a video decoder in an analog signal path for converting an analog signal to a digital signal;
an encoder for compressing said digital signal output by said video recorder; and
a decoder for decompressing said digital signal compressed by said encoder. - View Dependent Claims (23, 24, 25, 26)
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27. The system of 22, wherein said digital data storage device is a hard disk drive.
Specification