Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 375/37
Name: Pulse or digital communications >

Sub-classes under this class:

Class Number Class Name Patents
375/130 Spread spectrum 2,191
375/211 Repeaters 413
375/216 Apparatus convertible to analog 253
375/218 Earth or water medium 21
375/219 Transceivers 2,218
375/224 Testing 1,331
375/229 Equalizers 1,465
375/237 Pulse number modulation 52
375/238 Pulse width modulation 654
375/239 Pulse position, frequency, or spacing modulation 419
375/240 Bandwidth reduction or expansion 1,530
375/242 Pulse code modulation 592
375/256 Pulse transmission via radiated baseband 154
375/257 Cable systems and components 1,170
375/259 Systems using alternating or pulsating current 1,585
375/286 Multilevel 407
375/295 Transmitters 3,044
375/316 Receivers 3,914
375/353 Pulse amplitude modulation 192
375/354 Synchronizers 2,488
375/377 Miscellaneous 722

Patents under this class:

Patent Number Title Of Patent Date Issued

  Recently Added Patents
LED package with top and bottom electrodes
Systems and methods for arranging and labeling cardiac episodes
Methods and apparatus for determining a phase error in signals
Serial transmission system including transmitter apparatus and receiver apparatus, for use in transmission of AV data
Computer implemented apparatus for generating and filtering creative proposal
Apparatus and method for weighing an item of mail during transport through a sorting installation and having an anti-vibration device
Toner cartridge and image forming apparatus including the same
  Randomly Featured Patents
Electrical connector with contact shorting paths
Spray paint gun head
Window shade track construction
Corneal surgery apparatus
Seasonal carry bag
Device for forming apertures in concrete
Method and apparatus for producing time base altered effects in data recording and reproducing apparatus
Biodegradable air tube and spirometer employing same
Easel lamp
Non-oxide ceramic particles coated with zirconium oxide or hydrous oxide