Intermittent transmission control system
US5987020A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Mar 17, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0007
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An intermittent transmission control system based on a TDMA system which involves a burst transmission, has a sound presence detector for detecting presence or absence of sound information to be transmitted on the basis of an aural signal input from a microphone; a switch unit for switching types of the burst transmission; and a call control processor for causing the switch unit to switch the types of the burst transmission in such a way that a normal burst transmission containing the sound information is performed if presence of the sound information is detected by the sound presence detector, whereas a reduced burst transmission containing time interval information of the burst transmission is performed if no burst transmission is performed for a predetermined time. The call control processor also causes the switch unit to switch the types of the burst transmission in such a way that the normal burst transmission containing Fast Associated Control Channel information is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.