| |
 |
|
Class Information
Number: 455/149
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Plural output (e.g., plural speakers) (not stereo)
Description: Subject matter where the receiver has a plurality of separate outputs.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7580735 |
Condenser microphone |
Aug. 25, 2009 |
| 7440750 |
Signal routing for reduced power consumption in a conferencing system |
Oct. 21, 2008 |
| 7257384 |
Methods and apparatus for detecting the envelope of RF power signals |
Aug. 14, 2007 |
| 7245891 |
Wireless mobile communication device having a speaker vibration alert and method of using same |
Jul. 17, 2007 |
| 6993284 |
Interactive access to supplementary material related to a program being broadcast |
Jan. 31, 2006 |
| 6647327 |
System and method for data exchange in a vehicle multimedia system |
Nov. 11, 2003 |
| 6411866 |
Digital transmission and control system for vehicles |
Jun. 25, 2002 |
| 6301490 |
Audio headset communication apparatus and method |
Oct. 9, 2001 |
| 5983087 |
Distributed digital signal processing for vehicle audio systems |
Nov. 9, 1999 |
| 5970155 |
Headset for hearing protectors |
Oct. 19, 1999 |
| 5781850 |
Live voice device for cellular phones particularly operable in combination with radio receiver apparatus in motor vehicles |
Jul. 14, 1998 |
| 5471659 |
Dual radio |
Nov. 28, 1995 |
| 5179719 |
Programmable signal reception system |
Jan. 12, 1993 |
| 5081669 |
Assignable speakers for channels at a trunked console operator position |
Jan. 14, 1992 |
| 4389639 |
Voice warning device using entertainment speaker |
Jun. 21, 1983 |
|
|
|
