Tuner with variable tuning window
US5396827A · kind A · utility
21Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1994 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Jun 17, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S84/18
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An electronic tuning device has selectable width tuning ranges wherein selected pairs of the LEDs in a single row of LED's are activated, such as being turned on, blinked or flashed, so that the spacing between each activated pair of LEDs indicates the width of the tuning range during a range indicating mode. The sensing of a fundamental frequency of an input tone causes the operation of a corresponding LED in the row of LEDs to indicate the nearest note along with in-tune and out-of-tune conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.