Wrist AM radio receiver
US4419770A · kind A · utility
95Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1982 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Apr 26, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/088
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wrist AM radio receiver is housed in a bracelet-like structure adapted to be removably wrapped about a user's wrist and includes at least a bar antenna, a circuit board with an oscillating element thereon forming a reference oscillation source, and a speaker, and the bar antenna and the circuit board are spaced apart within the bracelet-like structure in the direction in which the latter is wrapped with the speaker also disposed in the bracelet-like structure between the bar antenna and the circuit board so as to minimize the influence on the bar antenna of pulses from the reference oscillation source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.