Analog video interactive (AVI) PC Add-On Card for controlling consumer grade VHS-VCR
First Claim
1. AVI PC Add-On Card for controlling consumer grade VHS-VCR comprising:
- Address decoding section and bidirectional buffer connected to IBM expansion slot for exchange of information to and from the processor,Input/Output (I/O) ports connected to bidirectional buffer, IBM expansion slot and address decoding section for controlling the functions of the VCR(s) and passing the status of the VCR(s) to the processor,Counter section connected to bidirectional buffer, address decoding section IBM expansion slot and I/O ports for counting the required number of tape positioning pulses and helping to determine the current status of the VCR(s),Digital switching control connected to counter section through monostable multivibrator and also to I/O ports for giving the stop signal to Analog function switching control whenever terminal count is indicated or when required by the processor,Analog function switching control connected to I/O ports for switching all the functions of the VCR(s) except stop function and digital switching stop function of the VCR,Analog multiplexer section connected to said counter section, I/O ports, analog function switching control, and VCR port (s) through VCR matrix (ces) forpassing tape positioning pulses to counter section, VCR status information to I/O ports, matrix input scan pulses to analog switching control and matrix output scan pulses to the VCR port(s), andreceiving multiplex control signals from I/O ports, matrix output scan pulses from analog function switching control section and matrix input scan pulses from VCR port(s).
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Accused Products
Abstract
PC Add-On Card for controlling consumer grade VHS-VCR(s) comprising address decoding section and bidirectional buffer connected to I/O ports for interchanging data between computer and VHS-VCR(s) through digital switching control and to counter section for counting tape positioning pulses from the VHS-VCR(s) through analog multiplexer section. The digital switching control section and analog function switching control electronically control the functions of VHS-VCR(s) through the analog multiplexer section interactively. This Card may be used for integrating real time analog video from a built-in VHS-VCR and animation from the computer in Analog Video Interactive Equipment.
79 Citations
11 Claims
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1. AVI PC Add-On Card for controlling consumer grade VHS-VCR comprising:
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Address decoding section and bidirectional buffer connected to IBM expansion slot for exchange of information to and from the processor, Input/Output (I/O) ports connected to bidirectional buffer, IBM expansion slot and address decoding section for controlling the functions of the VCR(s) and passing the status of the VCR(s) to the processor, Counter section connected to bidirectional buffer, address decoding section IBM expansion slot and I/O ports for counting the required number of tape positioning pulses and helping to determine the current status of the VCR(s), Digital switching control connected to counter section through monostable multivibrator and also to I/O ports for giving the stop signal to Analog function switching control whenever terminal count is indicated or when required by the processor, Analog function switching control connected to I/O ports for switching all the functions of the VCR(s) except stop function and digital switching stop function of the VCR, Analog multiplexer section connected to said counter section, I/O ports, analog function switching control, and VCR port (s) through VCR matrix (ces) for passing tape positioning pulses to counter section, VCR status information to I/O ports, matrix input scan pulses to analog switching control and matrix output scan pulses to the VCR port(s), and receiving multiplex control signals from I/O ports, matrix output scan pulses from analog function switching control section and matrix input scan pulses from VCR port(s). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification