Recording and editing of moving television pictures
US5153726A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 18, 1989 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Aug 18, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system enabling a digital video signal to be recorded and reproduced utilizing a solid state memory store (1) as the recording medium comprises a plurality of random access memory sub-systems (1A-1D) each incorporating a read/write buffer (2). The buffers (2) are connected in parallel to a common video data bus (3) and addressing and control inputs of the subsystems (1A-1D) are connected in parallel to a common control bus (5). One or more read/write sub-systems (6) are arranged to receive and/or output digital video signals in real time via an input (10) or output (11), such signals being transfered to and/or from the store (1) via a corresponding buffer (7; 9) coupled to the data bus (3). The capacity of the buffers (2, 7, 9) and the data bus (3) is a multiple of that of the input (10) or output (11) so that each read/write system (6) can transfer accumulated data at a slower rate than it is received or output. The transfer of data via the read/write sub-system (6) is effected by addressing memory sub-systems (1A-1D) consecutively with the same address whereby consecutive groups of data bits of a serial signal are distributed between respective memory sub-systems (1A-1D). Thus …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.