Computer controlled broadband receiver
First Claim
1. A programmable signal receiver for use in a computer system having a chassis for enclosing the components of said computer system, including a central processing unit (CPU) and a bus for transmitting data to and from said CPU, said signal receiver comprising:
- input port means for receiving a broadband signal;
interface means for directly coupling said signal receiver to said bus for receiving instruction signals, including channel selection means for selecting at least one channel within said broadband signal in accordance with said instruction signals; and
a programmable tuner coupled to said interface means, including means for storing data representing said at least one selected channel, and tuning means for each selected channel of said broadband signal for translating said selected channel to a predefined carrier frequency and for amplifying said translated signal, thereby producing an amplified channel signal, each said tuning means having amplifying means of sufficiently low impedance so that the RF radiation produced by said computer system does not corrupt said channel signal;
said signal receiver including means for mounting said interface means and said tuning means inside the chassis of said computer system, and shielding means for preventing radiation from said computer system from interfacing with the operation of said tuning means and for preventing radiation from said signal receiver from interfering with the operation of said computer system.
4 Assignments
0 Petitions
Accused Products
Abstract
A programmable signal receiver for use in a computer system. The signal receiver is located inside the computer'"'"'s chassis and has an interface directly coupled to the computer'"'"'s bus for receiving instruction signals which specify one or more channels to be selected from a broadband input signal. Each selected channel of the broadband signal is amplified using amplifying circuitry of sufficiently low impedance that the RF radiation produced does not interfere with the operation of the computer system. In one embodiment the signal receiver'"'"'s input port is d.c. coupled to the computer'"'"'s d.c. power supply so that the computer'"'"'s d.c. power supply can be used to provide power to apparatus external to said computer system--such as a satellite dish'"'"'s feed horn.
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Citations
8 Claims
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1. A programmable signal receiver for use in a computer system having a chassis for enclosing the components of said computer system, including a central processing unit (CPU) and a bus for transmitting data to and from said CPU, said signal receiver comprising:
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input port means for receiving a broadband signal; interface means for directly coupling said signal receiver to said bus for receiving instruction signals, including channel selection means for selecting at least one channel within said broadband signal in accordance with said instruction signals; and a programmable tuner coupled to said interface means, including means for storing data representing said at least one selected channel, and tuning means for each selected channel of said broadband signal for translating said selected channel to a predefined carrier frequency and for amplifying said translated signal, thereby producing an amplified channel signal, each said tuning means having amplifying means of sufficiently low impedance so that the RF radiation produced by said computer system does not corrupt said channel signal; said signal receiver including means for mounting said interface means and said tuning means inside the chassis of said computer system, and shielding means for preventing radiation from said computer system from interfacing with the operation of said tuning means and for preventing radiation from said signal receiver from interfering with the operation of said computer system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification