Multimedia television receiver and method of booting the same
First Claim
1. A television receiver comprising:
- a receiving module for receiving broadcast signals;
an analog switch box for receiving signals from the receiving module;
a demodulation module for demodulating a signal selected by the analog switch box and generating demodulated data therefrom;
a first bus for carrying the demodulated data;
a converting module for receiving the demodulated data via the first bus and converting the demodulated data to a data stream;
a second bus for carrying the data stream;
a decoding module for receiving the data stream via the second bus and decoding the data stream, thereby to generate decoded data;
a third bus for carrying the decoded data;
an image-outputting module for receiving the decoded data via the third bus and outputting an image represented by the decoded data;
a speech-outputting module for receiving the decoded data via the third bus and outputting a speech represented by the decoded data;
a bus controller connected to the analog switch box and the first, second and third buses;
control means for controlling the receiving module, the converting module, the decoding module, the image-outputting module, and the speech-outputting module, by using the analog switch box, the first to third buses and the bus controller, thereby to change an operating mode of each module in accordance with the broadcast signals;
a video encoder section and an audio encoder section connected between the second bus and the third bus;
a packet section connected between the first bus and the second bus, for generating a packet from an output of the video encoder section and the output of said! the audio encoder section;
a modulating module connected between said! the analog switch box and the first bus, for modulating the packet generated by the packet generated by the packet section; and
a transmission module connected to the analog switch box, for transmitting an output of the modulating module in the form of the broadcast signals.
1 Assignment
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Accused Products
Abstract
An NTSC tuner, an ISDB tuner, a CATV tuner, and a CATV modulator are connected to an analog switch box. Demodulation sections, an A/D, clock-reproducing section, and a modulation section are connected between the analog switch box a bus. MPEG2 video decoder sections, an MPEG2 audio decoder sections, an NTSC/EDTV horizontal decoder section, an EDTV vertical decoder section, an MPEG2 video encoder section, and an MPEG2 audio encoder section are connected between the bus and a bus. An audio amplifier, a graphics controller, and A/D conversion sections are connected the bus. The switch box and the buses are connected to a bus controller, which is connected to a CPU, a memory, and a remote-control I/F. These modules are selectively used to receive and process digital broadcasting signals, digital CATV signals or NTSC broadcasting signals. Even while the CPU is performing bootstrap processing immediately after the power switch of the television receiver is turned on, a DMA device is initialized, causing a monitor to display an image being received, no matter whether an operating system has been activated or not.
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Citations
17 Claims
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1. A television receiver comprising:
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a receiving module for receiving broadcast signals; an analog switch box for receiving signals from the receiving module; a demodulation module for demodulating a signal selected by the analog switch box and generating demodulated data therefrom; a first bus for carrying the demodulated data; a converting module for receiving the demodulated data via the first bus and converting the demodulated data to a data stream; a second bus for carrying the data stream; a decoding module for receiving the data stream via the second bus and decoding the data stream, thereby to generate decoded data; a third bus for carrying the decoded data; an image-outputting module for receiving the decoded data via the third bus and outputting an image represented by the decoded data; a speech-outputting module for receiving the decoded data via the third bus and outputting a speech represented by the decoded data; a bus controller connected to the analog switch box and the first, second and third buses; control means for controlling the receiving module, the converting module, the decoding module, the image-outputting module, and the speech-outputting module, by using the analog switch box, the first to third buses and the bus controller, thereby to change an operating mode of each module in accordance with the broadcast signals; a video encoder section and an audio encoder section connected between the second bus and the third bus; a packet section connected between the first bus and the second bus, for generating a packet from an output of the video encoder section and the output of said! the audio encoder section;
a modulating module connected between said! the analog switch box and the first bus, for modulating the packet generated by the packet generated by the packet section; anda transmission module connected to the analog switch box, for transmitting an output of the modulating module in the form of the broadcast signals. - View Dependent Claims (2, 3, 4, 5, 6)
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7. The television receiver comprising:
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a receiving module for receiving signals that have been broadcast; an analog switch box for receiving signals from the receiving module; a demodulating module for demodulating a signal selected by the analog switch box and generating demodulated data therefrom; a first bus for carrying the demodulated data; a converting module for receiving the demodulated data via the first bus and converting the demodulated data to a data stream; a second bus for carrying the data stream; a decoding module for receiving the data stream via the second bus and decoding the data stream, thereby to generate decoded data; a third bus for carrying the decoded data; an image-outputting module for receiving the decoded data via the third bus and outputting an image represented by the decoded data; a speech-outputting module for receiving the decoded data via the third bus and outputting a speech represented by the decoded data; a bus controller connected to the analog switch box and the first, second and third buses; and control means for controlling the receiving module, the converting module, the decoding module, the image-outputting module, and the speech-outputting module, by using the analog switch box, the first to third buses and the bus controller, thereby to change an operating mode of each module in accordance with the broadcast signals, wherein the receiving module includes an NTSC tuner, and ISDB tuner, and a CATV tuner; the demodulating module includes a OPSK-demodulating section, a 640AM-demodulating section, an A/D converting section, and a clock-generating section; and the converting module includes a depacket/descramble section for depacketizing and/or descrambling a demodulated signal generated by the demodulating module, and a descramble/through section for descrambling and/or passing the demodulated signal generated by the demodulating module. - View Dependent Claims (8)
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9. A television receiver comprising:
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a receiving module for receiving broadcast signals; an analog switch box for receiving signals from the receiving module; a demodulating module for demodulating a signal selected by the analog switch box, thereby to generate demodulated data; a first bus for carrying the demodulated data; a converting module for receiving the demodulated data via the first bus and converting the demodulated data to a data stream; a second bus for carrying the data stream; a decoding module for receiving the data stream via the second bus and decoding the data stream, thereby to generate decoded data; a third bus for carrying the decoded data; an image-outputting module for receiving the decoded data from the decoding module through a third bus and outputting an image represented by the decoded data; a speech-outputting module for receiving the decoded data via the third bus and outputting a speech represented by the decoded data; a bus controller connected to the analog switch box and the first, second and third buses; and control means for controlling the receiving module, the converting module, and the decoding module, the image-outputting module, and the speech-outputting module, by using the analog switch box, the first to third buses and the bus controller, thereby to change an operating mode of each module in accordance with the broadcast signals; memory means for storing a digital video signal output by the demodulating module; display means for reading the digital video signal stored in the memory means and displaying an image represented by the digital video signal; data-transfer control mans for controlling transfer of data through the first to third buses; a ROM storing a bootstrap program for activating an operating system; and control-shift control means for initializing the data-transfer control means in accordance with the bootstrap program stored in the ROM, thereby to transfer data through the first to third buses, and for activating the operating system, thereby to set the other components of the television receiver under the control of the operating system, wherein the control-shift control means sets the components of the television receiver under the control of the operating system during a blanking period when no data is transferred through the third bus. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A television receiver comprising:
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a receiving module for receiving broadcast signals; an analog switch box for receiving signals from the receiving module; a demodulating module for demodulating a signal selected by the analog switch box, thereby to generate demodulated data; a first bus for carrying the demodulated data; a converting module for receiving the demodulated data via the first bus and converting the demodulated data to a data stream; a second bus for carrying the data stream; a decoding module for receiving the data stream via the second bus and decoding the data stream, thereby to generate decoded data; a third bus for carrying the decoded data; an image-outputting module for receiving the decoded data via the third bus and outputting an image represented by the decoded data; a speech-outputting module for receiving the decoded data via the third bus and outputting a speech represented by the decoded data; a bus controller connected to the analog switch box and the first, second and third buses; control means for controlling the receiving module, the converting module, the decoding module, the image-outputting module, and the speech-outputting module, by using the analog switch box, the first to third buses and the bus controller, thereby to change an operating mode of each module in accordance with the broadcast signals; a video encoder section and an audio encoder section connected to the bus means; a packet section for packetizing and output of the video encoder section and the output of the audio encoder section; a modulating module connected between the analog switch box and the first bus, for modulating the packet generated by the packet section; and a transmission module connected to the analog switch box, for transmitting an output of the modulating module in the form of the broadcast signals.
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Specification