BROADCAST RECEIVER SYSTEM
First Claim
1. A broadcast receiver system comprising:
- a tuner circuit operable to detect a plurality of modulated radio frequency signals, including TV broadcast signals, and comprising at least one signal path each comprising an analogue mixer and analogue filter circuitry arranged respectively to frequency convert and pre-select received analogue signals;
further circuitry comprising an analogue to digital converter and digital filter circuitry;
a data interface to a software demodulation module operable to engage a general purpose processor of a computer in data demodulation and decoding functions;
a control interface; and
a microcontroller arranged to receive control information from said computer via the control interface.
1 Assignment
0 Petitions
Accused Products
Abstract
A broadcast receiver system comprising: a tuner circuit operable to detect a plurality of modulated radio frequency signals, including TV broadcast signals, and comprising at least one signal path each comprising an analogue mixer and analogue filter circuitry arranged respectively to frequency convert and pre-select received analogue signals; further circuitry comprising an analogue to digital converter and digital filter circuitry; a data interface to a software demodulation module operable to engage a general purpose processor of a computer in data demodulation and decoding functions; a control, interface; and a microcontroller arranged to receive control information from said computer via the control interface.
30 Citations
38 Claims
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1. A broadcast receiver system comprising:
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a tuner circuit operable to detect a plurality of modulated radio frequency signals, including TV broadcast signals, and comprising at least one signal path each comprising an analogue mixer and analogue filter circuitry arranged respectively to frequency convert and pre-select received analogue signals; further circuitry comprising an analogue to digital converter and digital filter circuitry; a data interface to a software demodulation module operable to engage a general purpose processor of a computer in data demodulation and decoding functions; a control interface; and a microcontroller arranged to receive control information from said computer via the control interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A broadcast receiver system comprising:
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a tuner circuit operable to detect a plurality of modulated radio frequency signals, covering multiple broadcast standards, comprising at least one signal path each comprising an analogue mixer and analogue filter circuitry arranged respectively to frequency convert and pre-select received analogue signals; further circuitry comprising a configurable analogue to digital converter and tunable digital filter circuitry; a data interface to a software demodulation module operable to engage a general purpose processor of a computer in data demodulation and decoding functions; a control interface; and a microcontroller arranged to receive control information from said computer via the control interface, wherein said control information determines control inputs to configure one or more of said analogue to digital converter and said tunable digital filter. - View Dependent Claims (23, 24, 25, 26)
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27. Computer program code implementing TV demodulation on a general purpose processor, comprising:
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demodulation code; error correction code; and decode code. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38)
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28. Computer program code implementing broadcast demodulation, including TV signal demodulation, on a general purpose processor, comprising:
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demodulation code; error correction code; decode code; and control code arranged to control configurable tuner circuitry via a messaging protocol operating over a standard computer interface. - View Dependent Claims (30, 31)
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29. Computer code arranged to control configurable analogue to digital converter and/or digital filter circuitry via a messaging protocol operating over a standard computer interface.
Specification