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Class Information
Number: 375/316
Name: Pulse or digital communications > Receivers
Description: Subject matter including apparatus to decode, demodulate, or otherwise recover the transmitted intelligence.


Sub-classes under this class:

Class Number Class Name Patents
375/320 Amplitude modulation 105
375/322 Angle modulation 167
375/317 Automatic baseline or threshold adjustment 374
375/344 Automatic frequency control 830
375/345 Automatic gain control 833
375/346 Interference or noise reduction 1,618
375/338 Interrupted carrier wave 14
375/340 Particular pulse demodulator or detector 1,538
375/352 With electromagnetic relay or solenoid 13


Patents under this class:

Patent Number Title Of Patent Date Issued
4811362 Low power digital receiver Mar. 7, 1989
4805194 Serial data communication system Feb. 14, 1989
4794620 Radio frequency modem and method Dec. 27, 1988
4789995 Synchronous timer anti-alias filter and gain stage Dec. 6, 1988
4785468 Intermittent receiver Nov. 15, 1988
4777657 Computer controlled broadband receiver Oct. 11, 1988
4745625 Transition detector May. 17, 1988
4736390 Zero IF radio receiver apparatus Apr. 5, 1988
4726040 Burst demodulator Feb. 16, 1988
4722093 Arrangement for detecting bursts Jan. 26, 1988
4656644 Digital radio receiving apparatus Apr. 7, 1987
4606050 System for detecting and recovering a transmitted signal Aug. 12, 1986
4592074 Simplified hardware implementation of a digital IF translator May. 27, 1986
4584694 Method and apparatus for estimating baud rate Apr. 22, 1986
4517680 Error vector normalizer May. 14, 1985
4494240 Modem end of message detector Jan. 15, 1985
4330862 Signal characteristic state detector using interval-count processing method May. 18, 1982
4290143 Transmission method and apparatus wherein binary data bits are converted into barker words and vice versa Sep. 15, 1981
4227152 Method and device for training an adaptive equalizer by means of an unknown data signal in a quadrature amplitude modulation transmission system Oct. 7, 1980
4197502 Digital signal detector Apr. 8, 1980
4189677 Demodulator unit for spread spectrum apparatus utilized in a cellular mobile communication system Feb. 19, 1980
4178549 Recognition of a received signal as being from a particular transmitter Dec. 11, 1979
4166980 Method and apparatus for signal recognition Sep. 4, 1979
4130724 Data receiver with synchronizing sequence detection circuit Dec. 19, 1978
4112430 Beamformer for wideband signals Sep. 5, 1978
4054950 Apparatus for detecting a preamble in a bi-phase data recovery system Oct. 18, 1977
3953805 DC component suppression in zero CF IF systems Apr. 27, 1976



 
 
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