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Class Information
Number: 370/69
Name: Multiplex communications >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
370/	Pathfinding or routing	0
370/200	Phantom	62
370/201	Crosstalk suppression	294
370/202	Amplitude compression or expansion	63
370/203	Generalized orthogonal or special mathematical techniques	974
370/212	Pulse width (pulse duration) modulation	131
370/213	Pulse position modulation	77
370/214	Simultaneous telegraphy and telephony	17
370/215	Phase modulation	83
370/216	Fault recovery	1,410
370/229	Data flow congestion prevention or control	2,176
370/241	Diagnostic testing (other than synchronization)	1,425
370/254	Network configuration determination	2,893
370/259	Special services	428
370/272	Sextuplex	27
370/273	Quadruplex	21
370/276	Duplex	355
370/297	Diplex	78
370/298	Low speed asynchronous data system (e.g., teletypewriter service)	22
370/307	Trasmultiplexers	78
370/308	Resonant transfer techniques	13
370/309	Resonant transfer substitutes	1
370/310	Communication over free space	1,695
370/351	Pathfinding or routing	2,117
370/431	Channel assignment techniques	801
370/464	Communication techniques for information carried in plural channels	524
370/546	Miscellaneous	58
370/901	Wide area network	34
370/908	Local area network	73
370/912	Packet communications	82
370/914	Rate converter	37
370/915	Time division cellular radio systems	9
370/916	Multiplexer/demultiplexer	30