Triangular piezoelectric transducer for recording video information
USRE29113E · kind E · reissue
0Cited by
10References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 1975 |
| Grant date | Jan 11, 1977 |
| Priority date | — |
| Expiry date | Sep 12, 1995 |
Classification
- Technology area (CPC —)General
Abstract
A cutterhead assembly suitable for forming a topographic signal-representative pattern in a recording medium such as a disc is constructed with non-parallel external surfaces so as to provide a response relatively free of undesired resonant modes over a relatively wide frequency range. The cutterhead includes a cutting stylus supported in a stylus mount. The stylus mount and therefore the stylus are driven by a piezoelectric element which is mounted on a supporting pedestal. A resilient mounting means is utilized to fasten the supporting pedestal to a mounting bracket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.