Matches 1 - 50 out of 70 1 2 >
Match Document Document Title
7109860 Surveillance apparatus integrated with mobile phone  
The present invention is to provide a surveillance apparatus for monitoring the situation of a visitor through a mobile phone, which comprises a monitor assembly including a microprocessor, a...
7039019 Telephone exchanging apparatus and telephone system  
A telephone exchanging apparatus 30 comprises a joined terminal table 341, a joined terminal table operating portion 352, and a reception side designating portion 355. The joined terminal...
6882715 Method and apparatus for communication with a gate entry controller and providing secure communication  
A security system and method is disclosed for use with a security gate entry system that uses a telephone or other communication system at a security gate for communication by a person seeking...
6760419 Method and apparatus for interfacing a drive-thru intercom system with a telephone system  
A method and system for interconnecting a telephone system and an intercom system. In one exemplary embodiment, telephone switchgear is connected to a telephone interface which provides separate...
6721408 Method and apparatus for recording or forwarding messages  
A system and method provide the capability for a visitor to a home or business to leave an audio message for the occupants if they are not present. Outside the home or building, an interface may be...
6631179 Voice and motion activated telephone  
A method and system for communicating without use of manual contact with a communications unit. The user approaches a communications system and can activate a communications unit by a...
6539084 Intercom system  
A method of establishing a private audio communication channel on an intercom system ( 100 ) having a plurality of intercom units ( 101 - 1 to 101 -n), is diclosed. The intercom system 100 is...
6476902 Liquid crystal display and method of making same  
A liquid crystal display and method of making same has a first transparent substrate bondable to a second transparent substrate. The second transparent substrate has a plurality of vias passing...
6438221 Electronote wall mounted messaging device  
A wall-hung or shelf situated free-standing voice memorandum system allows an individual to record a message for another member of the household. the system can be used in connection with a...
6310940 Personal computer interactive phone system  
A telephone system for providing advanced telephony includes a first phone system adapter and a phone system controller. The first phone system adapter is coupled between a first telephone handset...
6233328 Door intercom  
An automatic door answering system comprises a door intercom system, a recording machine, a telecommunication system, first, second and third interfaces, and a microprocessor-based switching...
5838784 One-touch dialing apparatus and method for registering dialing numbers in a telephone system  
A one-touch dial apparatus and method for registering dialing numbers in a telephone system includes a memory module divided into a plurality of memory blocks, each memory block having a number of...
5832077 Microphone/loudspeaker having a speakerphone mode and a microphone/loudspeaker mode  
A microphone/loudspeaker includes a microphone arrangement and a loudspeaker such that the microphone/loudspeaker operates in a quiescent mode and shifts to a speakerphone mode in response to...
5825868 Arrangement for providing private-network line features on central-office-to-PBX trunks  
A telephone central office switch (103) provides Centrex features, including intercom dialing, on central-office-to-PBX (133, 134) trunks (123, 124) by using the 4-wire subscriber feature of the...
5748722 Collective-house control system employing an interface circuit for alternative mark inversion control communication  
A collective-house control system is provided which employs an interface circuit for alternative mark inversion (AMI) communication. The interface circuit has a data detecting unit, a controlling...
5644630 Intercom system for a service establishment  
An intercom system (110) for a drive-in restaurant (102) is integrated with a point of sale system (118) through a computer (126) that provides for tracking and managing intercom calls to operators...
5596631 Station controller for distributed single line PABX  
A telephone station instrument add-on control subsystem with selectable addressing and ringing response delay techniques enhances any conventional instrument by providing added functionalities to...
5283825 Telephone adaptor for telephone sets  
A telephone adaptor unit for a telephone set connectible, with other like telephone adaptor units for other telephone sets, between the respective telephone set and a common telephone line,...
5267306 Telephone apparatus with conditional operation  
A dial controllable conditionally operative device which is directly connectable to the ring and tip lines of a subscriber loop. "On-hook" coupling is provided to allow the device to provide the...
5202917 Telephone calling method and telephone apparatus  
A person to whom a telephone call is directed is called at an extension either by voice only or by voice during each silent period of an audible ringing signal. A plurality of telephone sets are...
5127045 Identifying telephone controller system  
An identifying telephone controller system using a main computer component with a central processing unit coupled to an in-house AC wiring system and utilizing a plug-in ringer/appliance controller...
5090052 Telephone system with multiple extension telephones  
An improved telephone system in which a plurality of telephone units connected to a common telephone line is directly connected to an outside telephone line. Each telephone unit contains complete...
5031210 Telephone apparatus  
A telephone with an inter communicating facility is disclosed. The telephone has: a condition storage unit for storing operation condition data; an operation process unit for, when the operation of...
5027391 Call management system  
A call management system connected locally between a central office telephone company switching station (CO) and a conventional single telephone line having multiple extensions provides call paging...
5027341 Station line switching control system  
A station controller for use in a telephone system includes a plurality of digital telephone stations comprising one or more multi-station pick up groups, each having a primary station and one or...
4998274 ISDN dual bus extension phone system  
Several ISDN telephone terminals in a passive bus configuration are enabled to be used to share a single voice communication in the familiar extension phone arrangement by means of a second bus...
4996709 Intercom telephone  
An intercom system for use in combination with a multi-line telephone system wherein the intercom system utilizes the same wire pair for communications between intercom units that is used for...
4943997 Device for communicating a doorside intercom set with a remote telephone  
A device is disclosed for communicating a doorside intercom set of an intercom system with a selected forwarding telephone, having a microprocessor and an input for inputting the telephone number...
4868847 Telephone intercom device  
A telephone intercom device is provided for use in a telephone system. The telephone system includes a plurality of telephones interconnected to one another via first and second pairs of...
4794640 Switching control apparatus for intercom-telephone sets  
A switching control apparatus for intercom-telephone sets includes a switching control circuit and a surge protection circuit electrically coupled with a talking circuit for increasing the...
4769837 Device for adding intercom functions to a phone system  
A device for adding intercom functions to a residential or small business phone system uses existing telephone equipment and wiring. The device attaches to the incoming telephone line to switch...
4754476 Premises page/intercom system utilizing telephone set component  
A premises in which a plurality of telephone sets (10, 12) are used is provided with dedicated intercom wiring (1, 6) having its own power source. Each telephone set (10, 12) includes standard...
4734932 Telephone local intercom system  
Full duplex local intercom circuit arrangements are provided for telephone station instruments within a local network. Each instrument includes an FM receiver and an FM transmitter. If two...
4731821 Single wire telephone intercommunication system  
A residential digital logic circuit telephone system is provided for internal voice communications and digital interfaces control which enables two or more conventional twelve button touch-tone...
4706274 Cordless telephone system  
A cordless telephone system includes a control unit having a speaker, a microphone and control circuitry for selective operation in a "normal" mode for communications between the handset and an...
4706244 Frequency multiplexed telephone system  
A frequency multiplexed system for coupling a plurality of individual telephone sets to at least one subscriber telephone line. The system includes a line adapter unit for controlling use of...
4691345 Multifunction two line telephone system  
A two line telephone available for the home or the small business employs five pushbuttons for line selection, conference, hold and intercom. The line circuits and the conferencing switches are...
4554411 Intercom system  
A communication system includes a master control with optional inside, door or patio remote units, door chime, phone coupler, or programming such as radio, phonograph, tape player or the like. The...
4518821 Restaurant telephone entertainment system  
Disclosed are multiple combined telephone-speaker-lamp units for use in a restaurant having a telephone ordering system. A telephone switch board permits the feeding of a telephone conversation...
4459434 Home telephone exchange  
A telephone system used in the home which provides special services such as intercom, paging, remote turn on or off of power contacts, audio monitoring, etc. A central control is interposed between...
4329543 Communication system  
A communication system for combining telephone service with hands-free talk-back intercom service is disclosed. The telephone service includes a telephone exchange network having an outside trunk,...
4081615 Subset switching means in apparatus for a key telephone system for enabling intercom substations to access trunk lines  
In an attachment apparatus for a key telephone system of the type which permits a plurality of intercom substations to access a trunk telephone line via a common communication circuit, a novel...
4016372 Apparatus for a key telephone system for enabling intercom substations to access trunk lines  
An attachment to key telephone system apparatus is disclosed which permits an intercom substation to access a trunk telephone line. This includes an intercom-to-trunk line access unit for coupling...
3931477 Telephone intercommunication systems  
A private telephone intercommunication system including facilities for connecting the system to a telephone central office. Separate communication channels and supervisory means are provided for...
3816662 COMBINATION TELEPHONE AND VIDEO COMMUNICATION SYSTEM  
A door intercom and entrance control system with video facility in which use is made of the telephone line of the desired resident to selectively enable the TV monitor in the called resident's...
3794776 KEY TELEPHONE SYSTEM TRANSFER ADAPTER CIRCUIT  
Transfer adapter circuits are combined with a key telephone system for extending telephone lines to a private intercom system without the need for individual pickup button positions on the key...
3345466 Intercommunication system  
3304376 Combination telephone and intercommunications system  
3055985 Residential or farm intercom telephone system  
2883457 Multistation telephone intercommunicating and conference system  
Matches 1 - 50 out of 70 1 2 >