Magnetic recording and/or reproducing system
USRE29975E · kind E · reissue
1Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1976 |
| Grant date | Apr 24, 1979 |
| Priority date | — |
| Expiry date | Dec 28, 1996 |
Classification
- Technology area (CPC —)General
Abstract
In reducing crosstalk between the low frequency, frequency-converted chrominance portions of h-aligned video signals on adjacent tracks, the frequency converting carrier, but not the entire frequency converted portion, has its polarity inverted at the end of each line interval during the recording of alternate tracks but not during the recording of the remaining alternate tracks. This eliminates the extraneous signal that would otherwise be produced in the balanced modulator of the playback apparatus by any direct voltage offset or transient remanent of a direct voltage offset in the recorded signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.