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2813 results about "Intercom" patented technology

An intercom (intercommunication device), talkback or doorphone is a stand-alone voice communications system for use within a building or small collection of buildings, functioning independently of the public telephone network (Azori 2016). Intercoms are generally mounted permanently in buildings and vehicles. Intercoms can incorporate connections to public address loudspeaker systems, walkie talkies, telephones, and to other intercom systems. Some intercom systems incorporate control of devices such as signal lights and door latches.

Multifunctional world wide walkie talkie, a tri-frequency cellular-satellite wireless instant messenger computer and network for establishing global wireless volp quality of service (QOS) communications, unified messaging, and video conferencing via the internet

InactiveUS6763226B1High quality voice and data communicationMinimal costCordless telephonesInterconnection arrangementsQuality of serviceMass storage
World-Wide-Walkie-Talkie, a high speed multifunction interstellar wireless computer / instant messenger communicator, Personal Digital Assistant (PDA), coupled with a resilient, robust, VoIP data network and internet server method, deploying multiple wireless networks and protocols such as Voice Over IP, GPRS, WAP, Bluetooth, PCS, I-Mode, comprising a high speed Intel Pentium 4 Mobile(TM) or compatible Processor, to formulate a internet gateway system (99) and network bridge (150) for establishing instant low cost, real time global communications to the Public Switched Telephone Network via the internet (54). A PUSH-TO-TALK-WORLDWIDE button (21) instantly initiates global bisynchronous communications, or videoconferencing sessions. Fax, VideoMail, and unified messaging services are immediately available. GPS and mass memory provides global navigational tracking and data storage. Internet users, telephones, and cellular / satellite phone users can intercommunicate with the invention via VoIP / IM services. The invention provides uniformed global wireless communications, eliminates traditional long distance costs, and operates anywhere on earth.
Owner:COMP SCI CENT

Digital video surveillance system

InactiveUS20080036862A1Eliminating poor gradeEliminating frequency transmission qualityClosed circuit television systemsDigital videoDoorbell
A surveillance system is provided having a base unit for receiving digital video and audio transmissions from accessory units equipped with a camera having pan and tilt functions, a motion sensor, an intercom, infrared sensors and a doorbell button for contacting the interior of the dwelling a recording feature is provided to both automatically and on demand record video and audio transmissions received by the base unit from the accessory units.
Owner:MARCHE DESIGNS

Virtual Presence after Security Event Detection

A virtual presence of an resident or owner of a monitored premise (home, office, etc.) is provided by automatic detection of the presence of a visitor, automatic establishment of a video feed to a remote device of the resident or owner, and automatic establishment of two-way audio communications between the remote device and a door intercom at the monitored presence. Using the video feed and the two-way communications, the resident or owner can communicate to the visitor as if the resident or owner were actually in the monitored presence viewing the visitor through a peep-hole or security camera, thereby providing the illusion to the visitor that the premise is actually occupied. Additionally, the resident or owner is provided a remote capability to activate an alarm or disarm and alarm, according to the conditions of the visit and the user's wishes.
Owner:CONRADY RICHARD PAUL

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 device. The switching device is coupled to the door intercom system, the recording machine, and the telecommunication system by way of the first, second, and third interfaces, respectively. The switching device switches back and forth between coupling the door intercom system to a telecommunication system, coupling the door intercom system to a recording machine, and coupling the telecommunication system to the recording machine. If the recipient of a visitor is not available, the automatic door answering system establishes a communication link between the visitor and the recipient using the door intercom system and the telecommunication system. If the recipient of the visitor is not available, the automatic door answering system allows the visitor to record a message for the recipient. The message may be time-stamped to provide additional information. The recording system may also be used to play messages to the visitor and to request information from the visitor, such as the identity of the recipient. The automatic door answering system may then use the identity of the recipient to determine how to establish a telephone connection with the recipient.
Owner:WOLF MICHAEL

Multi-Point to Multi-Point Intercom System

A multi-point to multi-point intercom system, formed by at least one intercom server and a plurality of intercom terminals, the intercom terminals registered as talking or listening intercom terminals in an intercom session table. The intercom server sends to listening intercom terminals some or all of the unmixed audio packets received by talking intercom terminals according to the intensity signal value found in the header of the unmixed audio packets.
Owner:CLEAR COM
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