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Class Information
Number: 455/39
Name: Telecommunications > Transmitter and receiver at separate stations
Description: Subject matter including at least one transmitting device which converts analog information signals (e.g., audio) into modulated carrier wave signals, a carrier wave transmission medium, and at least one receiving device whereby the information or modulating signal transmitted will be derived from the received modulated carrier wave signals.
Sub-classes under this class:
| Class Number |
Class Name |
Patents |
| 455/63.1 |
Distortion, noise, or other interference prevention, reduction, or compensation |
1,219 |
| 455/40 |
Earth or water medium |
57 |
| 455/42 |
Frequency or phase modulation |
168 |
| 455/66.1 |
Having diverse art device |
344 |
| 455/67.11 |
Having measuring, testing, or monitoring of system or part |
1,998 |
| 455/48 |
Inverted sideband |
9 |
| 455/41.1 |
Near field (i.e., inductive or capacitive coupling) |
454 |
| 455/62 |
Optimum frequency selection |
447 |
| 455/500 |
Plural transmitters or receivers (i.e., more than two stations) |
294 |
| 455/41.2 |
Short range rf communication |
1,258 |
| 455/59 |
Single message via plural carrier wave transmission |
137 |
| 455/61 |
Single message via plural modulation of single carrier |
43 |
| 455/47 |
Single or vestigial sideband system |
92 |
| 455/46 |
Suppressed carrier wave system |
52 |
| 455/68 |
With control signal |
260 |
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4876742 |
Apparatus and method for providing a wireless link between two local area network systems |
Oct. 24, 1989 |
| 4839645 |
Weather data transmitting system |
Jun. 13, 1989 |
| 4665385 |
Hazardous condition monitoring system |
May. 12, 1987 |
| 4492978 |
Transmission system for TV signals |
Jan. 8, 1985 |
| 4386434 |
Vertical and horizontal detail signal processor |
May. 31, 1983 |
| 4340972 |
Transmitter/receiver teaching apparatus |
Jul. 20, 1982 |
| 4314104 |
Narrow band voice modulator system |
Feb. 2, 1982 |
| 4218655 |
Method and apparatus for transmitting intelligence over a carrier wave |
Aug. 19, 1980 |
| 4199761 |
Multichannel radio communication system for automated power line distribution networks |
Apr. 22, 1980 |
| 4176320 |
Transmission trunk powering system |
Nov. 27, 1979 |
| 4143251 |
Circuitry and method for locating buried cable splices |
Mar. 6, 1979 |
| 4118598 |
Amplitude modulated impatt diode oscillator and a low cost communication system using same |
Oct. 3, 1978 |
| 4106060 |
Electronic mail box |
Aug. 8, 1978 |
| 4032845 |
Surface wave communication system |
Jun. 28, 1977 |
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