Integrated circuit design for a personal use wireless communication system utilizing reflection
US5751820A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1997 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Apr 2, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/558
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An integrated circuit chip set design for a wireless hearing aid communication system including a battery operated transceiver unit worn in the vicinity of the ear of the user and a compact battery operated transmitter/receiver unit worn by or in close range of the user. The basis of the integrated circuit chip set design is to optimize circuit size, speed, power, and manufacturability for a personal use wireless audio communication system using the reflective transmission technology. Power and speed consideration of the circuits are designed to accommodate wireless audio RF reflective transmissions for a close range to the user. The transceiver and the receiver of the system are designed to switch between certain transmission states in order to facilitate rapid switching between a first mode in which the transmitter is transmitting to the receiver and a second mode in which the transceiver is transmitting to the receiver. The circuits are also integrated using a GaAs process and are operated in the multi-GHz range so that the circuits dissipate relatively low power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.