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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	325
370/202	Amplitude compression or expansion	68
370/203	Generalized orthogonal or special mathematical techniques	1,079
370/212	Pulse width (pulse duration) modulation	137
370/213	Pulse position modulation	79
370/214	Simultaneous telegraphy and telephony	21
370/215	Phase modulation	90
370/216	Fault recovery	1,565
370/229	Data flow congestion prevention or control	2,406
370/241	Diagnostic testing (other than synchronization)	1,627
370/254	Network configuration determination	3,292
370/259	Special services	499
370/272	Sextuplex	38
370/273	Quadruplex	32
370/276	Duplex	397
370/297	Diplex	94
370/298	Low speed asynchronous data system (e.g., teletypewriter service)	25
370/307	Trasmultiplexers	79
370/308	Resonant transfer techniques	15
370/309	Resonant transfer substitutes	2
370/310	Communication over free space	2,023
370/351	Pathfinding or routing	2,324
370/431	Channel assignment techniques	915
370/464	Communication techniques for information carried in plural channels	619
370/546	Miscellaneous	63
370/901	Wide area network	34
370/908	Local area network	74
370/912	Packet communications	88
370/914	Rate converter	37
370/915	Time division cellular radio systems	9
370/916	Multiplexer/demultiplexer	32