H04M1/2155 - CPC Classification Index

ClassID:

227385 ⎘

H04M1/2155 - CPC Classification

Classification description:

Substation equipment, e.g. for use by subscribers; Constructional features of telephone sets; Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers Acoustic coupling

Recent Application in this class:

20240096507

2024-03-21

TELEPHONE BASED TELE-HEALTH APPARATUS

20220068505

2022-03-03

Telephone based tele-health apparatus

20210186426

2021-06-24

SYSTEM AND METHOD FOR DETECTION OF MIDDLE EAR FLUIDS

20190373093

2019-12-05

SYSTEM FOR TEXT ASSISTED TELEPHONY

20180351994

2018-12-06

User device profiling using integrated vibration mechanism

20180329676

2018-11-15

Access control and validation using sonic tones

20170187875

2017-06-29

System for text assisted telephony

20170187859

2017-06-29

SYSTEM FOR TEXT ASSISTED TELEPHONY

20170187858

2017-06-29

System for text assisted telephony

#10

20150189048

2015-07-02

Adjustable holder for portable communication device with sound enhancement

#11

20150113094

2015-04-23

Systems and methods for content delivery and management

#12

20140160893

2014-06-12

Mobile device with ultrasound ranging

#13

20130288723

2013-10-31

System effective to demodulate a modulated code and provide content to a user

#14

20130268806

2013-10-10

System, method, and apparatus for performing fault diagnosis for an electronic appliance using sound data

#15

20130243227

2013-09-19

Personal communication device with hearing support and method for providing the same

#16

20130079058

2013-03-28

DEVICE EFFECTIVE TO MODULATE A CODE AND TO PROVIDE CONTENT TO A USER

#17

20130079057

2013-03-28

System effective to demodulate a modulated code and provide content to a user

#18

20120250837

2012-10-04

System For Text Assisted Telephony

#19

20120250836

2012-10-04

System for text assisted telephony

#20

20120230482

2012-09-13

Remote diagnosis of beverage preparation machines

#21

20120214545

2012-08-23

Object locator system and method

#22

20120129453

2012-05-24

DOCK FOR GUIDING ORIENTATION OF A MOBILE PHONE FOR ENHANCED ACOUSTIC DATA TRANSFER

#23

20110293105

2011-12-01

Earpiece and a method for playing a stereo and a mono signal

#24

20110159917

2011-06-30

Audible key locator system

#25

20110086593

2011-04-14

System and method for transmitting data over an audio communication link

#26

20100246807

2010-09-30

Headphone device

#27

20100240297

2010-09-23

Communication system

#28

20100222100

2010-09-02

SYSTEMS, METHODS AND APPARATUS FOR FACILITATING COMMUNICATION BETWEEN MOBILE DEVICES

#29

20100222088

2010-09-02

SYSTEMS, METHODS AND APPARATUS FOR RECEIVING INFORMATION BY A MOBILE DEVICE

#30

20100112991

2010-05-06

AMBIENT SOUND DETECTION AND RECOGNITION METHOD

#31

20100106647

2010-04-29

METHOD AND SYSTEM FOR CLOSE RANGE COMMUNICATION USING AUDIO TONES

#32

20090233582

2009-09-17

Information providing system

#33

20090156202

2009-06-18

METHODS, APPARATUS AND SYSTEMS FOR INFORMATION EXCHANGE USING PORTABLE ELECTRONIC DEVICES

#34

20090156193

2009-06-18

Modem with acoustic coupling

#35

20090070104

2009-03-12

ACOUSTIC COMMUNICATION SYSTEM

#36

20080152093

2008-06-26

System for text assisted telephony

#37

20060160526

2006-07-20

Communication apparatus and method for sounding dual tone multiple frequency sound corresponding to phone numbers

#38

20060039542

2006-02-23

System for text assisted telephony

#39

20050219068

2005-10-06

System and method for shaping a data signal for embedding within an audio signal

#40

20050020257

2005-01-27

Communications interface device

#41

14030045

2016-01-19

Two-way passive acoustic concentrator for a mobile phone