Apparatus for synchronizing terminal equipment
AssigneeElbex Video Ltd.
InventorsDavid Elberbaum, Yoshio Kaneta
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Abstract
An apparatus for synchronizing a terminal equipment such as a TV camera includes an external synchronizing signal generator which includes a switching circuit which generates two frequency signals and alternately transmits these signals to the terminal equipment which is provided with a decoder circuit decoding an alternating rate of the two signals outputted from the synchronizing signal generator, and an internal synchronizing signal generating circuit receiving a decoder circuit and generating a new synchronizing signal on the basis of the decoded signal.
Claims8
An apparatus for synchronizing one or more terminal equipment, comprising:
- an external synchronizing signal generator generating at least two different frequency signals and an external synchronizing signal at a frequency different from said at least two frequency signals, and for alternately transmitting said at least two frequency signals at the frequency rate of said external synchronizing signal to said one or more terminal equipment through a transmission line;
- first processing means disposed at said external synchronizing signal generator;
- and
- second processing means disposed at each of said one or more terminal equipment;
- said first processing means generating said at least two frequency signals each having a frequency higher than a frequency of said external synchronizing signal, for transmission of said at least two frequency signals at an alternating rate of the frequency of said external synchronizing signal to each of said terminal equipment;
- and
- said second processing means receiving said alternating at least two frequency signals from said first processing means of said external synchronizing signal generator, decoding said alternating rate of said at least two frequency signals to produce a decoder signal having said alternating rate and applying the decoder signal to the terminal equipment in which it is located for synchronizing said terminal equipment to said external synchronizing signal.
Dependencies are inferred from the claim text.