Quotables
"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7319864 | Single number reachability using cellular and desktop telephones A system for providing a single number reachability solution for communications with a desktop telephone and a cellular telephone includes a mobility application coupled to a call management application. The call management application can associate a telephone numb... | 01/15/2008 |
| 7283823 | Handoff between cellular and enterprise wireless networks A mobile station includes a first wireless interface that can couple to a first wireless network, a second wireless interface that can couple to a second wireless network, and a controller. The controller can negotiate a first wireless link with the first wireless n... | 10/16/2007 |
| 7224793 | Communication set with detection of set function and line condition A description is given of a communication set for connection to a communication line such as a telephone line, which communication set includes means for detecting set functions such as ringing signal detection, and a rectifier circuit which is connected to a common... | 05/29/2007 |
| 6038300 | Switching apparatus for use in telephone house wiring A controller for residential telephone wiring. Apparatus associated with the controller provides multiple communication channels on ordinary residential telephone wiring. The controller (1) routes incoming calls to a selected telephonic device within the ... | 03/14/2000 |
| 5987109 | Key telephone apparatus with call distribution function This invention relates to a key telephone apparatus which includes a key telephone main unit which accommodates a plurality of extension terminals each having a display via extensions and is connected to a network via an office line, and has an ACD functi... | 11/16/1999 |
| 5844978 | Multi-user telephone line The present invention provides for a method of restricting access to authorized users of telephone service from a telephone at a particular location which telephone is accessible by more than one individual. The present invention provides for a method of ... | 12/01/1998 |
| 5844975 | Communication apparatus connected to line of switching network providing caller telephone number informing service A communication apparatus connected to a line of a switching network providing a caller identification information informing service includes a detection unit for detecting the identification information when a call is received, a send unit for sending th... | 12/01/1998 |
| 5838778 | Reserved speech path forming method in a parallel-connected telephone system A reserved speech path forming method according to a first embodiment includes the steps of: determining whether or not another telephone within a parallel-connected telephone system is being used, enabling input of a reserved function key to reserve the ... | 11/17/1998 |
| 5712909 | Key telephone apparatus with automatic call distribution function This invention relates to a key telephone apparatus which includes a key telephone main unit which accommodates a plurality of extension terminals each having a display via extensions and is connected to a network via an office line, and has an ACD functi... | 01/27/1998 |
| 5684869 | Telephone station remote access device and method The invention provides a remote access telephone system that includes a telephone station which has two access numbers. The remote access telephone system responds to a first one of the two access numbers by providing remote access features and responds t... | 11/04/1997 |
| 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 ordinary telephone subscribers. When one or more of this en... | 01/21/1997 |
| 5454032 | Method of establishing communication link to one of multiple devices associated with single telephone number A method of establishing a telephone communication link from a calling line to one of plural peripheral devices associated with a single telephone number in a central office telephone switching system or PBX is comprised of storing in a memory a first tab... | 09/26/1995 |
| 5425089 | Low cost telephone caller identification device and method The device and method of the present invention characterizes a telephone call by identifying a code, comparing the code to a predetermined access/ID code and generating a signal in response to the code. The device provides called party identification, cal... | 06/13/1995 |
| 5386463 | Low noise multi-elevator communication system and method A system is provided for connecting multiple elevator (700-703) speaker/microphone pairs (114a-114d) to a remote terminal (750) via a standard telephone channel (50). The system comprises generating means (116) for generating an in-use signal from within ... | 01/31/1995 |
| 5339354 | Shared line telephone answering device For a single telephone line having plural telephone answering devices (TADs) connected to it, a system of TADs is disclosed where only one TAD answers the telephone but all other TADs connected to the telephone line are accessible and activated by means o... | 08/16/1994 |
| 5247570 | Telephone answering system and apparatus for direct caller selection of a party line extension An automated telephone answering system with plug-in tone responsive unit at each of a plurality of extensions, a central answering unit responds to a caller initiated, telephone company generated, ring signal on the telephone line and establishes a conne... | 09/21/1993 |
| 5086458 | Telephone answering system and apparatus for direct caller selection of a party line extension With a plug-in tone responsive unit at each extension, a central answering unit responds to a caller initiated, telephone company generated, ring signal on the telephone line and establishes a connection with the calling phone. Each of the remote units re... | 02/04/1992 |
| 4686700 | Telephone off-hook detector circuit A circuit for connection into a telephone line for detecting when a telephone instrument has gone off-hook and which is unaffected by the presence of a ringing signal on the telephone line. The circuit comprises a transistor switch, a first plurality of s... | 08/11/1987 |
| 4330691 | Integral ceiling tile-loudspeaker system A loudspeaker is formed integrally with a rectangular ceiling tile which is provided with electrical contacts for connecting the loudspeaker in series or parallel combinations with other loudspeaker-tile assemblies and for supplying power to the loudspeak... | 05/18/1982 |
| 4104488 | Subscriber line circuit Telephone subscriber line circuits and an all-electronic telephone exchange are described wherein Hall effect devices are incorporated to detect line looping, dialing and ring-trip.... | 08/01/1978 |
| 4017691 | Number translator A number translator which includes a memory system for storing directory and equipment numbers as well as other subscriber data has a digit store for storing data received from a register prior to its being passed on to the memory system, a register sende... | 04/12/1977 |
