Patents
Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223)
12/1994
12/07/1994EP0626121A4 Method and apparatus for optimum channel assignment.
12/07/1994CN1096151A Reprogrammable terminal for suggesting programs offered on a television program delivery system
12/07/1994CN1026946C Battery chamber module with integrative limited moving rail
12/07/1994CN1026944C Communicating equipment
12/06/1994US5371901 Remote voice control system
12/06/1994US5371858 Data communication system for assigning addresses to hand-held data terminals
12/06/1994US5371791 Housing assembly fastener for fastening housing assembly portions and a substrate
12/06/1994US5371790 Telephone with resilient housing
12/06/1994US5371788 Arrangement for displaying menu screens on a telephone terminal
12/06/1994US5371787 Machine answer detection
12/06/1994US5371784 Remote auxilliary charging cradle for cordless telephone handset
12/06/1994US5371783 Method for continually monitoring the status of a radio frequency link
12/06/1994US5371781 System and method for identifying the incoming directory number when multiple directory numbers are assigned to one wireless device
12/06/1994US5371779 Call initiating system for mobile telephone units
12/06/1994US5371428 Piezoelectric transducer
12/02/1994CA2124266A1 Answering system having message reminder service
12/02/1994CA2123041A1 Method for locating a user of telephone subscriber equipment
12/01/1994DE4421508A1 System for summoning help for persons or occupants of vehicles carrying a mobile telephone
11/1994
11/30/1994EP0626773A1 Handheld radio-telephone with remote loudspeaker
11/30/1994EP0626121A1 Method and apparatus for optimum channel assignment
11/30/1994EP0626118A1 Wireless telephone
11/30/1994CN2184299Y Anti-fungus odorless telephone membrane
11/30/1994CN2184298Y Adornment pad for telephone
11/30/1994CN2184297Y Multifunction protector for telephone
11/30/1994CN2184296Y 无线电话机 Radiotelephone
11/30/1994CN2184295Y Highly stable wireless telephone
11/30/1994CN1095873A Wireline interface for cellular telephone
11/30/1994CN1026845C A two-handset cordless telephone system
11/30/1994CN1026844C Method and apparatus for optimum channel assignment
11/30/1994CN1026841C Hinge apparatus for foldable radiotelephones
11/29/1994US5369802 Method and apparatus for improved battery replacement
11/29/1994US5369788 Miniature portable radio communication apparatus
11/29/1994US5369701 Compact loudspeaker assembly
11/29/1994US5369700 Multi-function telephone apparatus and control method
11/29/1994US5369697 Method and apparatus for automatically switching between pulse code and DTMF signals generated by a telephone
11/29/1994US5369690 Telephone call detecting circuit and a method of remotely accessing and testing a telephone
11/29/1994US5369689 Facsimile apparatus
11/29/1994US5369688 Data communication apparatus with interrupt completion detecting
11/29/1994US5369685 Voice-activated telephone directory and call placement system
11/29/1994CA2173003A1 Method and apparatus for delivering secured telephony service to a hybrid coaxial cable network
11/24/1994WO1994027397A1 Computer-to-telephone interface
11/24/1994WO1994027394A1 Telephone answering and voice messaging machine
11/24/1994WO1994027364A1 Circuitry for a telephone subscriber station
11/24/1994WO1994027309A1 Transformed current sensing relay for use in switched network modems and circuit incorporating same
11/24/1994CA2159462A1 Transformed current sensing relay for use in switched network modems and circuit incorporating same
11/23/1994EP0625864A1 Differential microphone on a portable radio telephone
11/23/1994EP0625862A2 Network control apparatus
11/23/1994EP0625299A1 An electro-acoustic transducer
11/23/1994CN1095535A Billing system for radio communications
11/22/1994US5367570 Dual telephone
11/22/1994US5367560 Telephone answering device with a plurality of passwords
11/22/1994US5367556 Portable radio telephone used with an adaptor unit having a hand-free circuit
11/22/1994US5367298 Data input terminal
11/22/1994US5367133 Keypad including membrane with replaceable key elements
11/22/1994US5365660 Method of protecting a circuit in a telephone junction box
11/22/1994CA2009016C Dialer circuit
11/17/1994EP0624966A2 Telephone apparatus providing calling party identification
11/17/1994EP0624965A2 Method and system for searching an on-line directory at a telephone station
11/16/1994CN2183059Y Arrangement for recording message forabsent telephone subscriber
11/16/1994CN2183058Y Intelligence device for dialing
11/16/1994CN2183057Y Device for bell calling a subscriber
11/16/1994CN2183056Y Arrangement for automatic testing fraudulence use of telephone communication
11/15/1994US5365583 Method for fail-safe operation in a speaker phone system
11/15/1994US5365578 Method and system for transferring special circuit telephone pairs
11/15/1994US5365577 Telecommunication display system
11/15/1994US5365573 Cordless telephone system including detachable radio unit for communicating with a base unit and a mobile unit
11/15/1994US5365572 Cordless key telephone system with multiple tenant facility
11/15/1994US5365570 Emergency cellular telephone apparatus
11/15/1994US5365546 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions
11/15/1994US5365230 For a computer
11/15/1994CA2123461A1 Hand-held radiotelephone
11/15/1994CA2122517A1 Telephone apparatus with caller identification
11/10/1994WO1994026055A1 Method of operating a combination radiotelephone and paging device
11/10/1994WO1994026054A1 Apparatus and method for transparent telephony
11/10/1994WO1994026053A1 Acoustic caller identification device for telephone sets
11/10/1994WO1994026038A1 Multiple antenna selection and antenna cap for computer devices utilizing radio and modem cards
11/10/1994WO1994025957A1 Voice transmission system and method for high ambient noise conditions
11/10/1994DE4336948C1 Device for sound transduction
11/10/1994DE4336791C1 Method for selecting a telephone number from a telephone number memory
11/10/1994CA2161675A1 Multiple antenna selection and antenna cap for computer devices utilizing radio and modem cards
11/10/1994CA2138526A1 Method of operating a combination radiotelephone and paging device
11/09/1994EP0624021A2 Portable telephone set with an earphone
11/09/1994EP0624020A1 Device for continuously monitoring a telephone line integrity
11/09/1994EP0624003A2 Wireless telephone set
11/09/1994EP0623976A2 Module for telephone line conductor pair having single protector unit
11/09/1994EP0623267A1 Modular subscriber apparatus
11/09/1994CN2182499Y Multi-function long-distance telephone enciphering device
11/08/1994US5363444 Unidirectional ear microphone and method
11/08/1994US5363437 Telephone dialing device and the operating method thereof
11/08/1994US5363436 Remotely programmable, vandal-resistant voice communications unit
11/08/1994US5363434 Audio distribution system
11/08/1994US5363430 Cordless telephone apparatus having a low power stand-by mode and a hold mode
11/08/1994US5363429 Radio telephone device capable of identifying an interrupting caller and telephone system using the same
11/08/1994US5363089 Electronic device having multi-position hinged mechanism
11/08/1994CA2120402A1 Module for telephone line conductor pair having single protector unit
11/08/1994CA2051388C Analog/digital voice storage cellular telephone
11/08/1994CA2045176C Communications device with movable element control interface
11/08/1994CA2032163C Cellular telephone with standard telephone set
11/08/1994CA2021797C Apparatus for control of storing information into dial memories in a telephone set
11/03/1994DE4313711A1 Handset with a listening area and a speaking area