H04Q1/50

СПИСОК патентов США - подгруппа МПК¹⁶ H04Q1/50

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№ п/п	Номер патента	Название патента
2016
1	9326048	Radio communication apparatus, radio communication method, and program
2	9288102	Controlling devices using cloud services and device-agnostic pipe mechanisms
2015
3	8942658	Directional notch filter for simultaneous transmit and receive of wideband signals
2014
4	8744381	Adjustment module, electronic device with the adjustment module, and antenna performance adjusting method thereof
2006
5	7020289	Remote control interface for replacement vehicle stereos
1997
6	5638435	Impulse signal convertor
1995
7	5471507	Circuit for detecting object signal from input signal
8	5442694	Ring tone detection for a telephone system
9	5392347	Ringing tone signal detecting circuit
1994
10	5353342	Adaptive multitone signaling method
11	5287405	Called party response detecting apparatus
1993
12	5222129	Telephone charging signalling detector suitable for central office line interface circuits
13	5177781	Dialing pulse signature recognizing method and device
1991
14	5022055	Trunk dialing converter
15	4993063	Channel unit interface circuit
1990
16	4907262	Method of transmitting dual tone multi-frequency during communication in a private branch exchange using keyphones
1989
17	4868861	Trunk dialing converter
18	4852160	Channel unit interface circuit
19	4852157	Multi-task state machine signalling translator
1987
20	4686702	Signal transmission control apparatus
1985
21	4554416	Low voltage two wire to four wire telephone circuit converter apparatus
1984
22	4467469	Circuitry for recovery of data from certain bit positions of a T1 span
1983
23	4412299	Phase jitter detector
24	4410982	Arrangement for extending digital signaling to telephone subscribers' substations
1982
25	4311878	Dialing interval transmission gating arrangement
1980
26	4221936	Loop to ground start circuit
27	4196321	Loopback test system
1979
28	4146751	Solid state pulsing apparatus for pulsing selected line relay terminals
1978
29	4068104	Interface for in band SCPC supervisory and signalling system
1977
30	4019114	Circuit arrangement for the ungrounded transmission of signals through testing points in communication facilities
1976
31	3988547	Telecommunication system having means for converting multifrequency selection signals into digital pulse trains
© 2017, ПАТ-Инфо, В.И. Карнышев Дата формирования списка: 03.04.2017