Digital video communication system having a network clock source
CA 1312372 C · Owner: Sano, Yasushi · Inventors: Hiratsuka, Sadaharu; Sano, Yasushi; Tsugane, Shuzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
NE-175, "Digital Video Communication System Having a Network Clock Source", ABSTRACT OF THE DISCLOSURE In a digital video communication system a network clock source is, provided to supply a common clock pulse synchronized with the transmission speed of the system to each station through a transmission channel to allow it to derive a video sync pulse. This sync pulse is applied to a video signal source to generate an analog composite television signal. A quantization sampling pulse is derived from the video sync pulse which is contained in the composite television signal to quantize the composite television signal. The quantized video signal is stored in a buffer and forwarded to a receiver …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 5, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 5, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.