Patents
Sitemap › H04 - Electric communication technique › H04M - Telephonic communication › H04M 1 - Substation equipment, e.g. for use by subscribers
Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223)
12/1995
12/12/1995US5475677 Compatible licensed and unlicensed band portable handset unit for TDMA wireless communications system
12/12/1995CA2067899C Device for detecting tones on telephone lines
12/12/1995CA2033270C Radio communication apparatus for a selected one of a plurality of terminal units of different kinds
12/11/1995CA2150842A1 System and method for simultaneously controlling ringing at local and remote telephones
12/07/1995WO1995033326A2 Method and arrangement for call setup in telecommunication networks using signaling aided redialing
12/07/1995WO1995030297A3 Telephone break-in security unit
12/07/1995CA2189119A1 Method and arrangement for call setup in telecommunication networks using signaling aided redialing
12/06/1995EP0685972A2 Mobile communication system and method therefore
12/06/1995EP0685954A2 Waterproofed portable telephone
12/06/1995EP0685953A1 Radio telephone
12/06/1995EP0685133A1 Voice transmission systems with voice cancellation
12/06/1995CN2214719Y Simple telephone mechanical ring
12/06/1995CN2214718Y Electronic induction line seeker
12/06/1995CN1113065A Telephone having a speech band limiting function
12/05/1995US5473685 Telecommunications end station with electrically controlled terminating impedance
12/05/1995US5473684 Noise-canceling differential microphone assembly
12/05/1995US5473683 Post assembly process for adjusting the gain of an electret microphone within a communications apparatus
12/05/1995US5473682 Automatic signalling-system switching device for digital line circuit device in subscriber system
12/05/1995US5473676 Telephone handset interface for automatic switching between voice and data communications
12/05/1995US5473671 Selective screening of incoming calls for cellular telephone systems
12/05/1995US5473569 Method for operating a flash memory
12/05/1995US5473506 Cooling a large microprocessor in a small module
12/05/1995US5473366 Television-telephone apparatus having a message-keeping function and an automatic response transmission function
11/1995
11/30/1995WO1995032576A1 Apparatus for controlling the telephone access of in-coming calls
11/30/1995WO1995032575A2 Network termination equipment
11/30/1995WO1995032533A2 Modular device for telephone network interface apparatus
11/30/1995DE4416384A1 Identifying telephone caller without using display
11/29/1995EP0684743A2 Programmable radio transceiver
11/29/1995EP0684724A2 Auxiliary baseband telephone interface for an answering machine
11/29/1995EP0684723A2 Handheld transceiver
11/29/1995EP0684722A2 Diverter interface between two telecommunication lines and a subscriber station set
11/29/1995EP0684714A2 Intra-premises communication system
11/29/1995EP0684704A2 A diversity antenna for a wrist telephone
11/29/1995EP0684590A2 Voice storage communication system, receiving station therefor, and method of receiving a communication packet
11/29/1995EP0684589A2 Voice storage communication system, receiving station therefor, and method of receiving a communication packet
11/29/1995EP0683953A1 A telephone system and adapter therefor
11/29/1995EP0683952A1 Cordless communications systems
11/29/1995CN2214059Y Telephone cabable of promptly automatic inquire and leave message
11/29/1995CN2214058Y Multifunction telephone
11/29/1995CN2214057Y Anti-theft apparatus of telephone line
11/29/1995CN2214056Y Anti-theft steal using device of telephone outside connections
11/28/1995US5471653 Portable radio apparatus and mount structure therefor
11/28/1995US5471529 Universally-linked reinforcing handset means for pay phone
11/28/1995US5471528 Voice switched speakerphone with filters having exponential transfer function in the monitoring path
11/28/1995US5471527 In a telecommunications network
11/28/1995US5471524 Toll call restrictor method and apparatus
11/28/1995US5471518 Method and apparatus for non-volatile data storage in radio telephones and the like
11/28/1995US5471470 Computer-based multifunction personal communications system
11/28/1995US5470244 Electrical connector having reduced cross-talk
11/28/1995CA2053082C Weighted telephone base assembly
11/28/1995CA2045399C Communications device with voice recognition and movable element control interface
11/28/1995CA2037326C Communication apparatus for speech signal
11/27/1995CA2124373A1 Long distance call interceptor
11/26/1995CA2149959A1 Mobile telephone device
11/23/1995WO1995031865A1 Customer line tester
11/23/1995WO1995031863A1 Communication terminal and portable telephone set
11/23/1995DE4415966A1 Mobile telephone providing pocket calculator facility
11/23/1995DE4415952A1 Telecommunication circuitry controlling dialling and communication states
11/23/1995DE4412134C1 Door intercom speech module
11/22/1995EP0683589A2 Method and apparatus for diverting a telephone connection
11/22/1995EP0683588A2 Cordless key telephone system
11/22/1995EP0683587A1 Attachment device for a mobile station
11/22/1995EP0683573A2 Cordless modem system having multiple base and remote stations which are interusable and secure
11/22/1995EP0683470A2 IC card-type radio communication device
11/22/1995EP0683026A2 Anti-shock and water-resistant housing for portable electronic apparatus
11/22/1995EP0682829A1 A message transmission system and method for a radiocommunication system
11/22/1995CN2213408Y Telephone transmitter with holding-aid
11/22/1995CN2213407Y Theft-proof line protecting box for telephone
11/22/1995CN1112382A A latching system
11/22/1995CN1112353A Termination unit for telecommunication and data lines
11/22/1995CN1112318A Alarm and test system for a digital added main line
11/22/1995CN1112317A Self-adaptive noise filter
11/21/1995US5469505 Communications headset having a ball joint-mounted receiver assembly
11/21/1995US5469499 System for securing access to equipment connectable to a telephone communication channel
11/21/1995US5469494 Self-diagnostic system for cellular-transceiver systems
11/21/1995US5469493 Telephone call saving system and method for an integrated service digital network
11/21/1995US5468948 Hand-held data terminal and communicator
11/21/1995CA2040407C Method and apparatus for preventing pay telephone fraud and reducing handset vandalism
11/16/1995WO1995031079A1 A method for validating a communication link
11/16/1995WO1995031048A1 Radiation shielding apparatus for a radio transmitting device
11/16/1995WO1995029571A3 Apparatus including a sound transducer
11/16/1995DE4294697C2 Method for permitting data entry without keypad
11/15/1995EP0682437A2 Device and method for automatically controlling sound volume in a communication apparatus
11/15/1995EP0682436A2 Voice actuated switching system
11/15/1995EP0682435A2 Alarm and test system with improved coupling circuit for a digital added main line
11/15/1995EP0682434A2 Portable telephone set
11/15/1995EP0682281A1 Mobile telephone equipment with head-up display
11/15/1995EP0545941B1 An ear protector
11/15/1995CN2212864Y Receiver rest without holding
11/15/1995CN2212863Y Multifunctional telephone switchboard apparatus
11/15/1995CN1111925A Apparatus for use in completing telephone calls
11/15/1995CN1111892A Fixed cellular terminal
11/15/1995CN1111885A Portable alerting unit for alerting a user to call arrival to portable radio apparatus
11/14/1995US5467393 Method and apparatus for volume and intelligibility control for a loudspeaker
11/14/1995US5467392 Dialing apparatus for displaying stored character with reduced key operations
11/14/1995US5467389 Personal communication system answerable by proxy
11/14/1995US5467388 Method and apparatus for selectively blocking incoming telephone calls
11/14/1995US5467387 Method for influencing a signaling procedure with the assistance of communication terminal equipment of a communication system
11/14/1995US5467385 Calling number display and recording system
11/14/1995US5467383 Cordless telephone apparatus
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