Wireless information communication method and its device
US6990334B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 1998 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | Aug 19, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/47
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless acoustic transmission device used in an acoustic offering service having superior convenience, includes wireless transmitter for transmitting the service request signal to request the desired acoustic signal, a wireless receiver for receiving the transmission signal containing the acoustic signal to be transmitted in response to the service request signal, a demodulator and decoder for restoring the acoustic signal applying the demodulation and/or decoding processing to the receiving signal transmitted from the wireless receiver, and an electro-acoustic transformer for transforming the acoustic signal restored by the demodulator and decoder the radio waves and for outputting. Accordingly, the desired acoustic signal can be easily obtained without having the recording medium on which the acoustic signal is recorded, and the acoustic offering service having superior convenience can be realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.