Matches 1 - 50 out of 98 1 2 >
Match Document Document Title
7366295 Telephone signal generator and methods and devices using the same  
A method or device includes a telephone with an audio or video effects generator to produce audio or video effects that are transmitted as part of a signal from the telephone.
7336777 Method and apparatus for managing presenting and changing ring-back sounds in subscriber-based ring-back sound service  
Disclosed herein is a method and apparatus for managing ring-back sounds in a subscriber-based ring-back sound service. The method includes the first step of storing common ring-back sounds and...
7254408 Apparatus and method for generating a calling tone of wire/wireless telephone  
In an apparatus and a method for processing a calling tone of a wire/wireless telephone, if an RF signal corresponding to a ring receiving generation control signal is transmitted to a portable...
7212840 Cellular phone and incoming call reception informing method  
Incoming call tones and program numbers as numbers used to specify respective incoming call tones are stored in a memory of a cellular phone so as to be set in correspondence to each other. The...
7099457 Personal ring tone message indicator  
A system and method of message indicating that enable the sender of a message to chose the ringing tone of the receiver's cellular telephone upon arrival of the sender's message. The sender has the...
7031464 Ring relay control unit for foreign exchange station  
The ring relay control unit of an FXS includes a main control unit for controlling relay interrupt command; a relay control device for generating a relay control signal in accordance with a relay...
7020271 Ring control device  
A system and method that allows a ringer of a telephone to be silenced on demand without preventing outgoing calls to be placed. In an embodiment of the invention, there is a ring control device...
6944284 Pulsed volume control of a magnetic ringer  
A digital circuit for driving an audio transducer that provides consistent tonal quality over a range of volume levels, without requiring a variable gain analog amplifier. A fixed amplitude ringer...
6882860 Method for issuing a incoming call alert according to service options in a composite cellular terminal  
A composite cellular terminal providing various service options issues different call termination alert tones and different call termination display messages according to types of terminated calls....
6751323 Electroacoustic apparatus having ringing signal generation means capable of producing a subjective bass perception  
An electroacoustic transducer ( 1 ) includes a ringing signal generation means ( 20 ) for generating a ringing signal (CS) and an electroacoustic transducer ( 9 ) for the acoustic reproduction of...
6298132 Ringing-tone control device for telephone set, using audio signal sent by caller  
In a ringing-tone control device for a telephone set, an audio signal which is sent from a communication opposite party is converted into a corresponding bi-level signal. The bi-level signal is...
6289099 Ringer for satellite user terminals  
An apparatus, system, method, and computer program product for providing a flexible ringer for multiple deskset phones. A controller detects a flag message that precedes an incoming telephone call,...
6246761 Automatic volume control for a telephone ringer  
A telephone is provided with a means for automatically generating ringing tones to be heard by a user over ambient noise and in spite of any muffling environment in which the telephone may be...
6167135 Method and apparatus for generating a ringing signal  
In generating a ringing signal of predetermined frequency and shape between the A- and B-wires to a subscriber's station in a telephone network, the ringing signal is directly injected in or...
6134455 Annunciating apparatus, and associated method, for radio communication device  
Annunciator apparatus, and an associated method, for a mobile station, such as a radio telephone operable in a cellular communication system. When a call is to be terminated at the mobile station,...
6084960 Power supply circuit using a constant current and telephone apparatus including such a circuit  
The present invention relates to a power supply circuit SC receiving a power supply current IS at an input voltage VLN and intended to supply a voltage VDD, comprising a capacitance CS, a...
5838788 Telephone ringing signal generator  
A telephone ringing signal generator includes a DC converter for producing high positive and negative voltages that define peak amplitudes of the ringing signal, which is produced by low pass...
5790654 Digitally controlled ring signal generator  
A space and power efficient digitally controlled, all solid state, DC to AC converter powered by low voltage DC, typically found in logic circuits, that generate a high voltage low frequency AC...
5673313 Telephone set of distinctive ringing type wherein pattern of telephone number call signal is registered for determination of telephone number being called  
A telephone set using two or more telephone numbers called by respective call signals having different patterns, which are stored in a pattern data memory when the call signals are received and...
5659607 Telephone set  
A telephone set including a data obtaining device which obtains a plurality of sets of own-call-number data each set of which identifies a corresponding one of a plurality of different own call...
5649007 Telephone set of distinctive ringing type capable of generating different calling sounds after the telephone set is connected to remote calling party  
A telephone set of distinctive ringing type of a called party capable of generating calling sounds depending upon respective call signals of different patterns received from a remote calling party,...
5633917 Remote-control telephone answering system and method  
A controller circuit enables remote control of conventional answering machines from any telephone coupled to the same telephone line to which the answering machine is coupled, and within the same...
5602911 System and method for eliminating bell tap on analog telephones  
A system and method for modifying a composite Ring AC/Message Waiting (RAC/MW) signal to prevent bell tap on analog telephones. The composite RAC/MW signal comprises AC signals and DC signal...
5600713 On-board ring signal generator  
A ring generator circuit that produces a ring output for a plurality of telephones simultaneously. The ring generator circuit includes a switch that receives an oscillating signal in response to an...
5442695 Ringer circuit  
A ringer circuit includes a rectifier unit receiving a calling alternating voltage and having first and second output terminals. An acoustic transducer has first and second terminals. A...
5363438 Selective ringing receiving device and method  
A selective ringing receiving circuit comprises a timing generating circuit for generating a timing signal for bit length comparison, a bit length comparison circuit for comparing, in terms of the...
5359598 Voice server for digital communication network  
An interface for coupling a standard telephone set to a distributed digital network for allowing digital voice communication over the distributed network such that the utilization of the...
5323456 Digitally controlled ringer signal generation  
A method and apparatus, of producing an alarm or ringing signal by providing a first pulse signal having a predetermined pulse width to define an alarm or ringing signal amplitude, and modulating...
5253289 Terminal connection device  
A terminal connection device changes and connects a plurality of terminals to one telephone line according to kinds of ringing signal sequences sent through the telephone line. The terminal...
5127049 Coded phone security system  
A telephone security device is placed in the telephone line between the primary transmission network and receiver. Incoming telephone calls are automatically answered and monitored for a...
5005199 Telephone interface circuit  
A line powered telephone interface circuit answers an incoming call and, responsive to a command tone, routes the call to a selected terminal. If no command tone is received within a predetermined...
4972466 Digital composite tone alerting  
Within a digital PBX system or the like, an appartaus permits provision of digital composite tone alerting particularly suitable for piezoelectric transducers with one arbitrarily selectable tone,...
4856056 Apparatus for timely controlling the sound characteristic of a signaling means of a voice communication device  
An apparatus is provided for programmably silencing a telephone ringer for one or more predetermined periods of time on a daily basis. In accordance with the time set by a user, the apparatus...
4747133 Telephone light adapter  
A telephone light adapter comprised of an electronic control box connected to a standard telephone and light fixture, the adapter energizing the light fixture when the control box is in an...
4723275 Circuit arrangement for generating an acoustic ringing signal in a subscriber telephone set  
A subscriber telephone set which comprises a multifrequency dialing tone oscillator, a microprocessor connected thereto for controlling selection of the tones produced thereby, and an acoustic...
4694292 Digitized decoder-receiver for receiving call signal  
A novel method for receiving a numerical call signal which comprises assigning a certain call number to a specified person; transmitting an electromagnetic wave carrying the call number as the...
4658419 Telephone ringer circuit  
A telephone ringer circuit having a ring signal detection network serving to detect ring signals utilizing an R-C network and operating in conjunction with a threshold responsive detection device....
4646347 Ringing signal reformatting circuit  
A ringing signal reformatting circuit detects ringing signals having one or more ringing bursts and generates a code representing a modified distinctive ringing signal having a predetermined number...
4599494 Ring sense telephone tone ringer circuit  
A sense circuit which senses when the magnitude of a full wave rectified current exceeds a predetermined threshold value comprises current mirrors for diverting a very small portion of the current...
4574272 Tone ringer for telephone sets and other telecommunications apparatus  
The vibratory element of a tone ringer, as used for a telephone set for example, is gripped at its periphery between a ledge on a base housing and a thin deformable extension on a top housing....
4571462 Multiple use digital tone generator in telephone  
Electronic telephone set having DTMF tone dialling. By some slight additions to the logic circuits of the digital DTMF tone generator this tone generator is made suitable for generating a two-tone...
4567333 Electronic tone ringer with distinctive signaling circuitry  
An electronic tone ringer provides a distinctive ringing capability through the use of two oscillators which allow selection of four tones and four modulation rates. In determining the type of tone...
4554416 Low voltage two wire to four wire telephone circuit converter apparatus  
A low voltage two wire to four wire telephone circuit converter apparatus utilizing a series pair of amplifiers to provide a transmit data out signal that is referenced to analog ground. A pair of...
4523058 Ringer signal wave shaping circuit  
Improved ringer signal circuitry in a telephone handset modifies the leading edge of the ringer signal envelope causing ringer volume to gradually increase, over a period of time, to its maximum...
4508937 Method and circuitry for encoding telephone ringing signals  
In the disclosed coded telephone ringing signal method and circuitry, audibly distinguishable ringing codes are generated by alternately shifting between at least a pair of single frequency tones...
4504701 Telephone having circuitry for reducing the audio output of the ringing signal  
In a telephone of the type wherein the receiver emits both voice and ringing signals, a gravity switch is electrically connected in parallel to a resistor, and such parallel connected elements are...
4496798 Ringing circuit for telephone subset, designed as an integrated circuit  
This ringing circuit detects the presence of the ringing signal on the subscriber line by means of a first circuit for detecting transition of the same direction in the ringing signal and of a...
4494032 Transducer plate for electro-acoustic transducers  
The invention relates to a transducer plate for electro-acoustic transducers, such as used in telecommunications technology, having a carrier plate and a ceramic plate arranged on a carrier plate....
4491691 Electronic tone ringer  
An electronic tone ringer responds to ringing signals on a telephone line while being unresponsive to dialing pulses or other signals on the line. Powered directly from the telephone line or...
4477697 Method and circuitry for encoding telephone ringing signals  
The method and apparatus encodes telephone ringing to identify both the origin and destination of a received call. The ring envelope of the ringing signal is divided into two segments. During the...
Matches 1 - 50 out of 98 1 2 >