Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 375/420.01
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
Two dimensional magnetic sensor immune to skew angle misalignment
Apparatus and method for extracting cascading style sheet rules
Methods, systems and apparatus for displaying the multimedia information from wireless communication networks
Field device for determining or monitoring a physical or chemical process variable
Exposure apparatus, exposure method, and device manufacturing method
Managing a spinlock indicative of exclusive access to a system resource
Flame retardant thermoplastic elastomers
  Randomly Featured Patents
Communications system and method for testing of a communications apparatus
Magnetic sensor
Combined adjustable desk lamp and desk organizer
Gas generating composition
Method for accessing a portion of the data on a microprocessor card
System for the structured illumination of a sample
Centrifugal pump having low flow diffuser
Starch ester
Navigational boat light
Adjustable hot sprue bushing