Receiver having analog and digital video modes and receiving method thereof
First Claim
1. A receiver having an analog video mode for receiving television signals analog-processed by a predetermined analog broadcasting method and a digital video mode for receiving television signals digitally processed by a predetermined digital signal format, comprising:
- controlling means connected to common bus lines including at least one data line and a clock line for generating mode selection data which represents one of said analog video mode and said digital video mode;
first signal processing means connected to said common bus lines, for signal-processing an analog television signal according to the mode selection data;
second signal processing means connected to said common bus lines, for decoding a digital television signal according to the mode selection data; and
a memory connected to said common bus lines, for decoding the digital television signal from said second signal processing means, storing data processed in said first signal processing means according to said mode selection data for representing said analog video mode, and for supplying stored data to said first signal processing means.
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Abstract
In a receiver having both an analog video service mode and a digital video mode, when the analog video mode is selected according to a mode selection signal indicating that a television channel is for the analog video mode or the digital video mode, a large-capacity memory used for the digital video-decoding may also be used as a frame memory for Y/C separation and post-processing, for enhancing picture quality, improving the efficiency of the memory and reducing the cost of a system.
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Citations
10 Claims
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1. A receiver having an analog video mode for receiving television signals analog-processed by a predetermined analog broadcasting method and a digital video mode for receiving television signals digitally processed by a predetermined digital signal format, comprising:
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controlling means connected to common bus lines including at least one data line and a clock line for generating mode selection data which represents one of said analog video mode and said digital video mode; first signal processing means connected to said common bus lines, for signal-processing an analog television signal according to the mode selection data; second signal processing means connected to said common bus lines, for decoding a digital television signal according to the mode selection data; and a memory connected to said common bus lines, for decoding the digital television signal from said second signal processing means, storing data processed in said first signal processing means according to said mode selection data for representing said analog video mode, and for supplying stored data to said first signal processing means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification