Nonuniform clock generator for document reproduction apparatus
US4000368A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1975 |
| Grant date | Dec 28, 1976 |
| Priority date | — |
| Expiry date | Aug 4, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04775
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic nonuniform clock generating apparatus including a modulo N counter for counting uniform clock pulses in a controlled manner to develop a series of clock pulses which are nonlinearly related to the rotation of a scanning device to form a nonuniform clock signal comprised of a series of different clock states each including one or more uniform clock pulses, a clock signal counter for counting the nonuniform clock signal pulses, a clock signal decoder which is preprogrammed to develop an increment signal each time the count developed by the clock signal counter reaches a number commensurate with the number of pulses in a particular state, a state counter for counting the number of increment signals developed by the clock signal decoder to develop a clock signal decoder, and a state decoder responsive to the clock state signal output of the state counter and operative to control the operation of the modulo N counter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.