Electrical cable interface for electronic camera
First Claim
Patent Images
1. A video camera system comprising:
- an electronic camera head comprising;
a solid-state video imager for providing a video signal waveform comprising analog video signals, andtiming generating circuitry for generating horizontal and vertical synchronizing signals and a pixel clock signal;
a host video processor, located externally from the electronic camera head for receiving the analog video signals from the solid-state video imager and the horizontal and vertical synchronizing signals and the pixel clock signal from the timing generating circuitry, comprising;
an analog to digital converter for converting the analog video signals to digital video signals, anddigital signal processing circuitry for processing the digital video signals; and
an electrical cable for carrying the video signal waveform from the electronic camera head and the horizontal and vertical synchronizing signals and the pixel clock signal to the host video processor.
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Abstract
The invention features a video camera system where horizontal and vertical synchronizing signals and a pixel clock signal are generated and added to analog video signals from a video imaging device within an electronic camera head that is connected, via an electrical cable, to a remote host processor having digital signal processing circuitry for processing the video signals. The analog video signals generated by the video imaging device received by the host processor, over the electrical cable, are converted to digital video signals at the remote host, and are then processed by the digital signal processing circuitry.
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Citations
33 Claims
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1. A video camera system comprising:
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an electronic camera head comprising; a solid-state video imager for providing a video signal waveform comprising analog video signals, and timing generating circuitry for generating horizontal and vertical synchronizing signals and a pixel clock signal; a host video processor, located externally from the electronic camera head for receiving the analog video signals from the solid-state video imager and the horizontal and vertical synchronizing signals and the pixel clock signal from the timing generating circuitry, comprising; an analog to digital converter for converting the analog video signals to digital video signals, and digital signal processing circuitry for processing the digital video signals; and an electrical cable for carrying the video signal waveform from the electronic camera head and the horizontal and vertical synchronizing signals and the pixel clock signal to the host video processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An electronic camera comprising:
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a solid-state color-stripe video imager for providing analog video signals, a demodulator for receiving the analog video signals and generating demodulated video signals by extracting a reset pulse signal from the analog video signals, a timing signal generator for generating horizontal and vertical synchronizing signals and a pixel clock signal, an adder circuit for generating an output video signal by adding the horizontal and vertical synchronizing signals, and the pixel clock signal, to the demodulated video signals and an electrical cable having a pair of conductors for carrying the output video signal from the adder circuit to an external video processor. - View Dependent Claims (20, 21, 22, 23)
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24. A method of providing an interface, within an electronic camera, for generating analog video output signals from a solid-state video imager to an external video digital processor, comprising the steps of:
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providing a video waveform comprising analog video signals from the solid-state video imager, generating a horizontal synchronizing signal, a vertical synchronizing signal, and a pixel clock signal, and conveying the analog video signals from the solid-state video imager and the horizontal synchronizing signal, the vertical synchronizing signal, and the pixel clock signal to the external video digital processor over a length of analog video signal carrying cable. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification