Control circuit for delayed sweep oscilloscope
CA 1237834 A · Owner: Tektronix, Inc. · Inventors: Hillman, Alfred K. Jr.; Bristol, L. Rodney; Law, William Q.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
12-, Abstract of the Disclosure, In accordance with the present invention a con-, trol circuit for operating a delayed sweep oscilloscope includes a reversible counter which may be selectively incremented or decremented to establish a number of trigger-circuit operating functions and modes such as trigger source selection, coupling level, and, sweep mode. A plurality of light sources behind a plastic overlay laminated to the front panel indicate the various functions and modes.
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
- Granted June 7, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 2005.
- 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.