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Class Information
Number: 370/568.1
Name: Multiplex communications >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
370/	Pathfinding or routing	0
370/200	Phantom	67
370/201	Crosstalk suppression	336
370/202	Amplitude compression or expansion	68
370/203	Generalized orthogonal or special mathematical techniques	1,117
370/212	Pulse width (pulse duration) modulation	138
370/213	Pulse position modulation	81
370/214	Simultaneous telegraphy and telephony	21
370/215	Phase modulation	91
370/216	Fault recovery	1,626
370/229	Data flow congestion prevention or control	2,485
370/241	Diagnostic testing (other than synchronization)	1,698
370/254	Network configuration determination	3,404
370/259	Special services	518
370/272	Sextuplex	40
370/273	Quadruplex	34
370/276	Duplex	405
370/297	Diplex	100
370/298	Low speed asynchronous data system (e.g., teletypewriter service)	26
370/307	Trasmultiplexers	79
370/308	Resonant transfer techniques	15
370/309	Resonant transfer substitutes	2
370/310	Communication over free space	2,126
370/351	Pathfinding or routing	2,396
370/431	Channel assignment techniques	956
370/464	Communication techniques for information carried in plural channels	655
370/546	Miscellaneous	66
370/901	Wide area network	34
370/908	Local area network	74
370/912	Packet communications	93
370/914	Rate converter	37
370/915	Time division cellular radio systems	9
370/916	Multiplexer/demultiplexer	32