Timing control in data receivers and transmitters
CA 2471255 A1 · Owner: Curran, Philip · Inventors: Murray, Carl Damien; Curran, Philip; Molina Navarro, Alberto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A Gigabit transceiver (1) has a receiver (2) and a transmitter (3). There is an ADC (5) in the receiver (2) for each channel (A B, C, D). The ADCs (5) , oversample at a factor of 2. However the remainder of the digital circuitry and transmitter DACs (2) operate off half of the oversampling rate. In the receiver (2) fractionally spaced equalisers (FSEs 6) ensure that the optimum , sampling phase is selected digitally. The invention avoids the need for a PLL in the receiver for each channel and associated interference and retiming problems.
Read the whole patent
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
- Filed December 11, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2024.
- 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.