Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7062036 | Telephone call information delivery system A telephone call information delivery system includes answering circuitry to answer a telephone call incoming from a service provider and to attain information input by a caller. The system further includes an information signal provider to provide at least one sign... | 06/13/2006 |
| 7020266 | Simultaneous transmission of an analog pots signal and a digital signal on a subscriber line Apparatus and method for simultaneously providing multiple telephone-type services to any/all POTS-type devices on a single wire pair at a user premises. The present invention provides for the ability to add separately addressable POTS devices on a single service lo... | 03/28/2006 |
| 6952468 | Method for providing call-connected party's information in private exchange network A method provides a call-connected party's information to a terminal in a private exchange network. The method displays the call-connected party's information in a private exchange network, and provides accurate information of a call originator to a terminal of a ca... | 10/04/2005 |
| 6940955 | Method and remote answering machine controller for programmable control based upon message importance A method, remote answering machine controller and computer program product are provided for programmable control based upon message importance. Responsive to an incoming call being received, checking a current message priority is performed. Responsive to the identif... | 09/06/2005 |
| 6744867 | Remote control of CPE-based service logic Telephone network service logic relating to calls over the telephone network to a customer terminal, uses both terminal functions and network functions. The terminal has a service logic script for execution at the terminal to control the terminal functions. To contr... | 06/01/2004 |
| 6498848 | Use of an echo canceller for the detection of CAS signals A method and a communication device detect a service signal and include a converter having a first input which is connected to a communication channel for communicating with a network. An input device is connected to a second input of the converter for pr... | 12/24/2002 |
| 6389134 | Call progress monitor circuitry and method for a communication system A call progress monitor circuit is disclosed for a digital DAA in which digital information is transmitted across an isolation barrier from phone line side circuitry to powered side circuitry. In particular, the call progress monitor circuit of the presen... | 05/14/2002 |
| 6295357 | System and method for ringing other subscriber telephones connected to a telephone line during data communications on the telephone line A system and method for enabling a subscriber to receive incoming telephone calls on a telephone line and ring all of the telephones connected to a first conductor pair inside the subscriber's premises, wherein the first conductor pair would have normally... | 09/25/2001 |
| 6289087 | Modem with ring detection/modem processing capability A modem which connects to a data terminal is connected to a telephone line capable of supporting multiple directory numbers with each number having a distinctive ring signal. The modem comprises a ring detector which indicates the presence of a ring signa... | 09/11/2001 |
| 6263072 | Computer telephony integrated network The invention concerns an integrated computer and telephony system and a method of integrated computer telephony in which at least one main is switch is capable of receiving incoming telephone calls and of dialling outgoing calls. A computer terminal is a... | 07/17/2001 |
| 6263059 | Communication apparatus and storage medium A communication apparatus is provided for communicating with an external device. The communication apparatus may be a facsimile machine which includes a main phone, and a plurality of secondary handsets capable of communicating with the external device vi... | 07/17/2001 |
| 6081587 | Modem with ring detection/modem processing capability A modem which connects to a data terminal is connected to a telephone line capable of supporting multiple directory numbers with each number having a distinctive ring signal. The modem has a ring detector which indicates the presence of a ring signal asso... | 06/27/2000 |
| 6052446 | Communication device that identifies and stores and incoming signal and transmits the signal to a computer A multifunction communication device is provided which transmits a call identity signal to a computer through an outside communication line resulting in the device transmitting data and the computer receiving at least a portion of any data received by the... | 04/18/2000 |
| 5835582 | Telephone call alerting system and information processing system used in such A telephone call alerting system is applied to a telephone communication system accommodating a line to which a telephone terminal is connected, a plurality of telephone numbers being assigned to the line. The telephone call alerting system includes an ou... | 11/10/1998 |
| 5835578 | Modem with ring detection/modem processing capability A modem which connects to a data terminal is connected to a telephone line capable of supporting multiple directory numbers with each number having a distinctive ring signal. The modem has a ring detector which indicates the presence of a ring signal asso... | 11/10/1998 |
| 5809131 | Ringer circuit for generating sine wave A ringer circuit which generates a sine wave, where an amplified output of a transistor for oscillation is fed back to a base of the transistor. An output from an output transistors is a sine wave. When this sine wave output is supplied to a circuit for d... | 09/15/1998 |
| 5715308 | Apparatus for generating alerts of varying degrees An alerting device generates a variable alert that is varied to continuously or continually indicate the amount of time that has elapsed since the alert began. The alerting device has an alert signal detector, a timing unit, an alert signal generator and ... | 02/03/1998 |
| 5715301 | In-house communication system for transmitting and receiving both voice and digital data, and communication terminals used in this system An in-house communication system comprises a PBX and a line switching device 15 electively connected to a telephone 18 or a facsimile equipment 17 in response to a designating signal sent from an intended party designating signal sending device 6 or 42 of... | 02/03/1998 |
| 5699420 | Bell sound synthesizer The invention concerns digital synthesis of multiple frequencies a telephone, which are combined, in order to produce a replica of a bell sound. The invention also concerns detection of a power failure, and actuation of a low-power annunciator, which ring... | 12/16/1997 |
| 5699419 | Analog multibutton telephone keysets A keyset that connects to telephone switches via analog lines, wherein a processor in the keyset communicates with the switch via in-band signaling to provide keyset functionary. When a call comes into the switch for one of the directory numbers (DNs) ass... | 12/16/1997 |
| 5590185 | Multiple phone line adaptor The present invention is a two line phone adaptor that allows two separate phone lines to be connected to and controlled by a single line DTMF phone. The two line phone adaptor has one ring detector for each line and one hold circuit for each line. The ad... | 12/31/1996 |
| 5499287 | FAX-telephone interface circuit An improved telephone interface box which interfaces an incoming telephone line to either a modem or a telephone handset is disclosed. The choice of connection is made by a controller that answers incoming calls and determines if the call is to be directe... | 03/12/1996 |
| 5497413 | Telephone system with message recording function A telephone system having a message recording function which records in a voice mail recorder a voice message received from a calling party during absence of a called party and vocally reproduces the recorded message in response to a request from called p... | 03/05/1996 |
| 5432844 | Shared line answering system with enhanced extension device features A system of telephone answering devices includes a master telephone answering device (MTAD) and at least one (and often a plurality) of extension telephone answering devices (ETADs). If a telephone call is answered by someone, others nearby may be paged t... | 07/11/1995 |
| 5323455 | Ringer circuit, particularly for a telephone set The ringer comprises a loudspeaker receiving signals from an amplifier, the amplifier having both a power supply input connected to a ringer line providing a ringer signal via a chopper power supply means, and a melody input which is connected to the ring... | 06/21/1994 |
| 5260992 | Key telephone system with reduction of delay of ring tone generation at telephone set A plurality of trunk interface blocks are provided to receive a plurality of telephone lines. In each trunk interface block, a ringing signal detection circuit detects an incoming ringing signal on the corresponding telephone line, and a code insertion ci... | 11/09/1993 |
| 5228073 | Call identification display system A call identification display system includes a reception unit; at least one remote user unit; and a communication link such as conventional interface electronics located in the reception unit and the remote units interconnected by cables or rf or laser t... | 07/13/1993 |
| 5117454 | Exchange having a display apparatus for displaying calls terminated at an attendant console An exchange having a display apparatus for displaying the states of a plurality of subscriber terminals accommodated therein. The display apparatus includes a display board having n indicator-keys, each for displaying the state of a subscriber terminal an... | 05/26/1992 |
| 5062133 | Multi-function telephone call management system The multi-function telephone call management system enables a user to recursively activate a plurality of voice communication features on a single call connection. The multi-function telephone call management system serves to interconnect a plurality of c... | 10/29/1991 |
| 5040209 | Telephone ringing monitoring and control system A control system for use in a conventional telecommunications system comprising a common telephone line to which plural telephones may be connected. The line is arranged to carry plural series of electrical ring-initiating signals, each for a respective o... | 08/13/1991 |
| 5029202 | Incoming telephone call director An incoming telephone call director is intended for use with a Ring-Master service which provides different ring signals on a single telephone line to selectively access one of several devices on the line. The call director ignores a first ring, counts th... | 07/02/1991 |
| 4998273 | Telephone line called number recognizer A party-like telephone line with plural numbers having distinguishable ringing signals on a single line is automatically connected to a facsimile or other telephone connected device for receiving incoming messages upon sensing a predetermined ring sequenc... | 03/05/1991 |
| 4995075 | Apparatus and method for encoding telephone ringing signals An encoded telephone signalling apparatus and method provides pleasant, relatively distinct and quickly distinguishable personalized call destination information and distinctive call origin information signals within an audible ringing pattern. The ring p... | 02/19/1991 |
| 4958370 | Control system for a plurality of telephone sets A control system for a plurality of telephone sets connected as branched to a central office line allows extension calling, privacy function setting and hold releasing operations between the telephone sets. Each of the telephone sets in the branched conne... | 09/18/1990 |
| 4922526 | Automated access facilities for use with key telephone systems A call processor (32) for intercepting incoming calls to a key telephone system (10) and returning a message to a calling party. A digital message storage unit (48) stores messages associating called parties with respective pseudo-telephone numbers so the... | 05/01/1990 |
| 4873716 | Path allocation arrangement for multi-terminal groups A method and apparatus for processing calls to a directory number, shared by a multiple number of terminals, in which a switching system selects a preferred terminal for serving the call based on call answering activity. The switching system establishes a... | 10/10/1989 |
| 4850012 | Automated access facilities for use with key telephone systems A call processor (32) for intercepting incoming calls to a key telephone system (10) and returning a message to a calling party. A digital message storage unit (48) stores messages associating called parties with respective pseudo-telephone numbers so the... | 07/18/1989 |
| 4850008 | Method and apparatus for discrimination between different kinds of data transmission A data communication station comprises a first and second data terminals operating under first and second transmission standards, and a selective switching means to connect those terminals to a single communication line; the first data terminal is usually... | 07/18/1989 |
| 4845773 | Method and a system for remotely switching an electrically operated device by the use of signals generated by a telephone A switching system and a method of remote switching an electrically operated device by using calling signals generated by a telephone. A switching element is actuated by the system upon detecting a specific code of the calling signals generated by the tel... | 07/04/1989 |
| 4782518 | Apparatus for converting distinctive ring to selective ring in telephone lines An apparatus for converting a distinctive ring to a selective ring includes a rectifier connected between a main telephone line and ancillary telephone lines to prevent AC ring current from passing to the ancillary lines. A relay is connected to each anci... | 11/01/1988 |
