Clock system having a dynamically selectable clock period
US4241418A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1977 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | Nov 23, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/08
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A clock system for providing rectangular wave forms or wave trains, with each wave train having a selectable predetermined clock cycle period. A rectangular wave train is generated by a generator comprising a delay line coupled to an INVERTER. By using a second delay line to delay the rectangular wave by a selectable predetermined delay period, a control signal is formed which when fed into the generator produces a second rectangular wave train with a clock cycle period equal to that of the rectangular wave clock cycle period plus the period of the second predetermined delay. The addition of a synchronization circuit permits the clock cycle period to be dynamically selected during a clock cycle. This provides a rectangular train with the period of each clock cycle being any of the predetermined clock cycle periods independent of the clock cycle period of preceding or succeeding clock cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.