Digital switcher
First Claim
1. A digital switcher, comprising:
- a matrix switcher section including a plurality of input buses and a plurality of output buses, said matrix switcher section being operable to receive a plurality of input digital signals through said plurality of input buses;
control means for controlling said matrix switcher section to select any one of said plurality of digital signals via said plurality of input buses, and for controlling said matrix switcher section to output a selected signal via a desired one of said plurality of output buses in response to said selection of said plurality of input digital signals; and
an error detector connected to said desired one of said plurality of output buses for detecting an error in said selected signal.
1 Assignment
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Accused Products
Abstract
A digital switcher of this invention comprises a matrix switcher section 11 adapted so that a plurality of serial digital video signals are inputted through respective input buses, a control section 12 for carrying out operation control of the matrix switcher section 11, signal processing sections 13A, 13B . . . connected to a plurality of output buses of the matrix switcher section 11, an input detector 14 connected to one output bus of the matrix switcher section 11, and an error detector 15 connected to one output bus of the matrix switcher section 11. An approach is employed to control the matrix switcher section 11 by the control section 12 with respect to a plurality of digital video signals inputted through respective input buses to thereby selectively detect presence or absence of input and occurrence of error by the input detector 14 and the error detector 15 connected to one output bus of the matrix switcher section 11.
25 Citations
14 Claims
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1. A digital switcher, comprising:
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a matrix switcher section including a plurality of input buses and a plurality of output buses, said matrix switcher section being operable to receive a plurality of input digital signals through said plurality of input buses; control means for controlling said matrix switcher section to select any one of said plurality of digital signals via said plurality of input buses, and for controlling said matrix switcher section to output a selected signal via a desired one of said plurality of output buses in response to said selection of said plurality of input digital signals; and an error detector connected to said desired one of said plurality of output buses for detecting an error in said selected signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A digital switcher, comprising:
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converting means for converting a plurality of input serial digital signals into a plurality of input parallel digital signals; a matrix switcher section including a plurality of input buses and a plurality of output buses, said matrix switcher section being operable to receive said plurality of input parallel digital signals through said plurality of input buses; converting means for converting said input serial digital signals into input parallel digital signals; control means for controlling said matrix switcher section to select any one of said plurality of input parallel digital signals via said plurality of input buses, and for controlling said matrix switcher section to output a selected signal via a desired one of said plurality of output buses in response to said selection of said one of said plurality of input parallel digital signals; and an error detector connected to said desired one of said plurality of output buses for detecting an error in said selected signal.
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14. A digital switcher, comprising:
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a matrix switcher section including a plurality of input buses and a plurality of output buses, said matrix switcher section being operable to receive a plurality of input serial digital signals through said plurality of input buses; control means for controlling said matrix switcher section to select any one of said plurality of input serial digital signals via said plurality of input buses, and for controlling said matrix switcher section to output a selected serial signal via a desired one of said plurality of output buses in response to said selection of said one of said input serial digital sign; and an error detector connected to said desired one of said plurality of output buses for detecting an error in said selected serial signal, wherein said error detector includes a converting section for converting said selected serial signal into a selected parallel signal and an error detecting section for detecting an error in said selected parallel signal.
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Specification