Technique for recording and reproducing low rate data in a helical vehicle scan recorder having a stationary time code signal reproduce magnetic head
US5276559A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1992 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Mar 27, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/3036
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A helical scan magnetic tape recorder includes a rotary scanner having magnetic heads which record and reproduce data on slant tracks of magnetic tape helically transported about the rotary scanner. Low frequency tones representing a time code or other digital information are recorded by the data heads of the rotary head scanner in the same lateral location such as preamble segments of the data tracks. The recorded time code is recovered by means of a stationary magnetic head. The recovered low frequency tones are converted into digital information such as a digital time code which provides tape location information for editing or searching purposes as well as other auxiliary information such as recorder serial number, data rate codes, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.