Matrix control method and apparatus
US4577191A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 1, 1983 |
| Grant date | Mar 18, 1986 |
| Priority date | — |
| Expiry date | Aug 1, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q9/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus for controlling a selected electrical use circuit (9) from among a multiplicity thereof from a correspondingly selected electrical control circuit (8) from among the same multiplicity thereof. Two pulse operating plural-phase clocks (A & B) have mutually prime factors for the number of phases of each, such as five and six. These feed clock pulses (10,+) to each of the use and the control circuits. In each use and each control circuit all phases of the clocks are shifted one phase. One control circuit thereby uniquely actuates only one use circuit. Plural separate functions can be selectively energized at any use circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.