СПИСОК патентов США - подгруппа МПК16 H04M1/20


Выделить слова в названиях патентов:


№ п/п Номер патента Название патента

2017

19538271Electronic apparatus having microphone

2016

29433271Protective cover with an acoustic isolation mechanism
39232071Optimizing audio processing functions by dynamically compensating for variable distances between speaker(s) and microphone(s) in a mobile device

2015

49179224Hearing device with adaptive feedback-path estimation
59167063Acoustic isolation mechanism
69165550Acoustic isolation mechanism with membrane

2010

77739109System and process for muting audio transmission during a computer network-based, multi-party teleconferencing session

2009

87593749Method and radio terminal equipment arrangement of indicating incoming connection

2005

96932187Protective acoustic cover assembly

2003

106526150Telephone loudspeaker enclosure

2001

116311071Low-feedback compact wireless telephone
126304654Telephone handset interface with feedback control
136272360Remotely installed transmitter and a hands-free two-way voice terminal device using same
146212273Full-duplex speakerphone circuit including a control interface

2000

156091965Low-feedback compact wireless telephone

1999

165923750Telephone handset
175883966Portable telephone with a speaker having an improved acoustic characteristic
185867573Telephone handset interface with feedback control

1998

195819183Low-feedback compact wireless telephone
205778085Audio conference device having echo canceller
215757905Telephone set with circuit for suppression of howling and echo
225719935Cellular telephone

1992

235121426Loudspeaking telephone station including directional microphone

1991

245042071Acoustic insulator for a telephone handset microphone

1990

254937877Modular microphone assembly

1989

264876714Telephone set
274864611Telephone handset attachment for use in-the-ear hearing aids
284823384Telephone apparatus for the hearing impaired

1985

294491689Amplifier for use with telephone transmitter mounted in hand held telephone unit
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017