| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 379201010 |
SPECIAL SERVICES
| 1209 |
| 379670100 |
AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS
| 1205 |
| 379242000 |
CENTRALIZED SWITCHING SYSTEM
| 937 |
| 379900010 |
TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE)
| 634 |
| 379100010 |
DIAGNOSTIC TESTING, MALFUNCTION INDICATION, OR ELECTRICAL CONDITION MEASUREMENT
| 345 |
| 379142010 |
RECEPTION OF CALLING INFORMATION AT SUBSTATION IN WIRELINE COMMUNICATIONS SYSTEM
| 339 |
| 379111000 |
WITH USAGE MEASUREMENT (E.G., CALL OR TRAFFIC REGISTER)
| 279 |
| 379037000 |
EMERGENCY OR ALARM COMMUNICATIONS (E.G., WATCHMAN'S CIRCUIT)
| 247 |
| 379406010 |
ECHO CANCELLATION OR SUPPRESSION
| 237 |
| 379219000 |
PLURAL EXCHANGE NETWORK OR INTERCONNECTION
| 180 |
| 379419000 |
TERMINAL
| 87 |
| 379399010 |
SUBSCRIBER LINE OR TRANSMISSION LINE INTERFACE
| 74 |
| 379387010 |
SUBSTATION OR TERMINAL CIRCUITRY
| 62 |
| 379350000 |
SUPERVISORY OR CONTROL LINE SIGNALING
| 51 |
| 379188000 |
CALL OR TERMINAL ACCESS ALARM OR CONTROL
| 45 |
| 379052000 |
INCLUDING AID FOR HANDICAPPED USER (E.G., VISUAL, TACTILE, HEARING AID COUPLING)
| 41 |
| 379441000 |
TERMINAL ACCESSORY OR AUXILIARY EQUIPMENT
| 24 |
| 379156000 |
MULTI-LINE OR KEY SUBSTATION SYSTEM WITH SELECTIVE SWITCHING AND CENTRAL SWITCHING OFFICE CONNECTION
| 18 |
| 379414000 |
TRANSMISSION LINE CONDITIONING
| 16 |
| 379167010 |
PRIVATE (E.G., HOUSE OR INTERCOM) OR SINGLE LINE SYSTEM
| 15 |
| 379110010 |
COMPOSITE SUBSTATION OR TERMINAL (E.G., HAVING CALCULATOR, RADIO)
| 11 |
| 379418000 |
CALL SIGNAL GENERATING (E.G., RINGING OR TONE GENERATOR)
| 8 |
| 379338000 |
REPEATER (E.G., VOICE FREQUENCY) | 5 |
| 20090129582 | Communication system tonal component maintenance techniques - An apparatus and method for suppressing noise is presented. The apparatus may utilize a filter bank of bandpass filters to split the input noisy speech-containing signal into separate frequency bands. To determine whether the input signal contains speech, DTMF tones or silence, a joint voice activity & DTMF activity detector (JVADAD) may be used. The overall average noise-to-signal ratio (NSR) of the input signal is estimated in the overall NSR estimator, which estimates the average noisy signal power in the input signal during speech activity and the average noise power during silence. Two indirect power measures are performed for each band, measuring a short-term power and a long-term power. The power estimation processes are adapted based on the signal activity indicated by the JVADAD. A NSR adapter adapts the NSR for each frequency band based on the long-term and short-term power measures, the overall NSR and the signal activity indicated by the JVADAD. The NSR adaptation may then be performed. The gain computer utilizes these NSR values to determine the gain factors for each frequency band. The gain multiplier may then perform the attenuation of each frequency band. Finally, the processed signals in the separate frequency bands are summed up in the combiner to produce the clean output signal. In another embodiment of the present invention, a method for suppressing noise is presented. An alternative embodiment of the present invention includes a method and apparatus for extending DTMF tones. Yet another embodiment of the present invention includes regenerating DTMF tones. | 05-21-2009 |
| 20080273688 | Phone computing machine (PCM) - The present invention PCM (phone computing machine) uses general purpose programmable device ( | 11-06-2008 |
| 20100040223 | TELEPHONE RELAY SYSTEM, TELEPHONE RELAY APPARATUS, RECORDING MEDIUM AND DATA PROCESSING METHOD - When a telephone call line from an outgoing telephone terminal to the specific telephone terminal of a specific terminal user is not opened, the telephone relay apparatus acquires periphery requirement data from user scheduled data about the specific terminal user having a scheduled date matching the present date, and selects a peripheral telephone terminal. Opening of a telephone call line from the outgoing telephone terminal to the selected peripheral telephone terminal is tried, and the outgoing telephone terminal not connected to the specific telephone terminal is connected to the peripheral telephone terminal. Thus, it is possible to increase the possibility that the telephone outgoing user and the specific terminal user can talk to each other between the peripheral telephone terminal and the outgoing telephone terminal. | 02-18-2010 |
| 20100172489 | RELAY DEVICE, TELEPHONE SYSTEM, RELAY PROGRAM PRODUCT, AND COMPUTER-READABLE RECORDING MEDIUM RECORDING RELAY PROGRAM - A home gateway includes a WAN interface portion, a LAN interface portion and an analog interface portion, and a LAN controller, an analog controller and a central controller. The WAN interface portion communicates with an external telephone set. The LAN interface portion communicates with a plurality of telephone sets configuring an IP telephone system. The LAN controller and the analog controller control the LAN interface portion and the analog interface portion such that type information is transmitted to a destination telephone set. The central controller generates the type information in accordance with a type of information to be communicated to the external telephone set, based on the information received by the WAN interface portion. Thus, a user can readily determine which telephone set is to be used to receive a call when a plurality of telephone sets can receive a call from a calling party. | 07-08-2010 |
| 20120087487 | TELEPHONE RELAY APPARATUS, TELEPHONE RELAY METHOD, AND PROGRAM - A telephone relay apparatus | 04-12-2012 |
| 379398000 |
LINE EQUALIZATION OR IMPEDANCE MATCHING | 3 |
| 20090067614 | COMMON MODE TRANSMISSION LINE TERMINATION - The present invention provides termination for transmission line structures propagating common mode signals. Common mode signals typically represent noise in systems wherein information is transmitted as differential mode signals. The present invention terminates the common mode signals in a dynamically matched termination that prevents or significantly reduces reflection of said common signals without interference with differential mode transmission lines or their normal operation. Application is shown for an unshielded, twisted pair transmission line as commonly used in telephony-based systems for both voice and broadband data communication. The methods for application of the present invention to systems with large numbers of conductors are also shown. | 03-12-2009 |
| 20130223620 | Method and Circuitry for Matching Impedance - A method and circuit for matching impedance, wherein, a peripheral impedance detection module detects the user telephone impedance and outputs information about the user telephone impedance; an analog switch handover module provides an impedance matching path between the user telephone impedance and an impedance matching module according to information about the user telephone impedance output by the peripheral impedance detection module; the impedance matching module provides a corresponding impedance to match the user telephone impedance through the impedance matching path provided by the analog switch handover module. The above-mentioned technical scheme realizes the impedance matching when communicating between a wireless access box and telephones with different impedance modes. The matching process is automatic and flexible and does not need the manual configuration, and the realization technology is simple and reliable, and the cost is low. | 08-29-2013 |
| 20140185791 | APPARATUS AND CONTROL METHOD FOR THE SAME - An apparatus which accepts a connection of an external telephone and connects to a telephone line includes a first controller configured to control line impedance via the telephone line, a detecting unit configured to detect a ringing signal received from the telephone line, a determining unit configured to determine whether the external telephone captures a telephone line, and a second controller configured to invalidate the control over line impedance by the first controller in a case where the apparatus is a standby state and validate the suppression of the control over ringer impedance by the first controller in a case where the detecting unit detects the ringing signal and the determining unit determines that the external telephone does not capture a telephone line. | 07-03-2014 |
| 379550100 |
HAVING NEAR FIELD LINK (E.G., CAPACITIVE, INDUCTIVE) | 2 |
| 20090034692 | WIRELESS PLAIN ORDINARY TELEPHONE SERVICE (WIRELESS POTS) - A wireless plain ordinary telephone service includes a wireless interface, which provides a connection to a wireless network. A telephone dialing device sends digits corresponding to an external number into a wireless interface. An electronic line bridge lies in a wireline system. The electronic line bridge has a first line and a second line. The first line is connected to the wireless interface through a wireless network and the wireline Public Switched Telephone Network (PSTN). The second line is connected to a wireline network. The first and second lines may be connected together. The wireless terminal connects into the wireline network through the electronic line bridge and the wireless terminal sends the digits corresponding to the external number into the second line. | 02-05-2009 |
| 20120237004 | Wireless Communications Interface - A wireless communications interface couples wireless service to conventional wireline phone appliances. In one embodiment, the wireless communications interface is connected to the phone appliances through existing phone jacks. This allows a user to place and receive calls over a wireless network using the existing wireline infrastructure in a building. By using the invention, users can consolidate their portable and fixed phone service with one of the multiple wireless service providers and bypass the wireline service provider entirely, if so desired. In a second embodiment, the wireless communications interface is directly connected to the phone appliances, bypassing the installed wireline infrastructure. In a third embodiment, both wireline and wireless service are operative, and the wireless communications interface may include logic arbitration to route multiple calls to multiple phone appliances. | 09-20-2012 |
| 379143000 |
WITH CHECK OPERATED CONTROL (E.G., PAYSTATION) | 1 |
| 20120189110 | Machine and Process for Accepting Customer Payments and Placing Orders - A machine and process for accepting customer payments and placing orders for telecommunications services is disclosed. The machine and process include a kiosk operable to accept account set-up information from an individual, accept payment from the individual, collect identifying data from the individual, and communicate with a system to activate a telecommunication account for the individual. The kiosk may be placed wherever quick telecommunication account set-up and payment verification is necessary, for example: a correctional facility or college campus. | 07-26-2012 |
| 379036000 |
FREE CALLING FROM PAYSTATION | 1 |
| 20100158201 | SYSTEMS, METHODS, AND COMPUTER READABLE MEDIA FOR PROVIDING TOLL-FREE SERVICE IN A TELECOMMUNICATIONS NETWORK - Methods, systems, and computer program products for providing toll-free service in a telecommunications network are disclosed. According to one aspect, the subject matter described herein includes a method for providing toll-free service in a telecommunications network. The method includes, at a signaling node that includes at least one processor: receiving a first signaling message that includes a toll-free called party number, where the first signaling message is one of a non-TCAP call setup message, a mobility management query, a number portability (NP) query, and an E.164 number (ENUM) query; determining a directory number associated with the toll-free called party number; and sending the first signaling message or a second signaling message, the sent message including at least one of the directory number and routing information associated with the directory number. | 06-24-2010 |
| 379177000 |
POLYSTATION LINE SYSTEM (I.E., PARTY LINE) | 1 |
| 20110268261 | METHOD OF USING PREFIX AND SUFFIX FOR IDENTIFYING USER OF A CALLING TERMINAL - The present invention relates to a method that, when users who share one terminal or a plurality of terminals and one calling number or a plurality of calling numbers use individualized database information to utilize communication services, assigns a user identification number that identifies each of the service users in the same user group, attaches the user identification number to the service identification number in the form of a prefix and a suffix, provides the user identification number as a means whereby both an exchange and a server identify a user by the number inputted by the user when a phone is used, and classifies and saves information on each service user, thereby ensuring convenience and security when the user uses communication service. The present invention relates also to a computer-readable recording medium whereon is recorded a program to realize such functions. | 11-03-2011 |
| 379560100 |
HAVING LIGHT WAVE OR ULTRASONIC LINK FOR SPEECH OR PAGING SIGNAL | 1 |
| 20130089188 | System and Method for Providing Multi-Provider Telecommunications Services Over a Passive Optical Network - A method for providing access to a passive optical network for services to homes or businesses from two or more telecommunications service providers and a billing means is described. A first service provider connects to a point of presence at one side of passive optical network. The provider transmits the appropriate services through this network to an authorization receiver. The authorization receiver is used to receive a periodic authorization code from the network provider to enable the appropriate services from the service provider to be transmitted to a subscriber at a home or business. The authorization receiver enables an optical fiber path to be established for the services to flow to and from the home or business. The authorization code that is transmitted through the network also provides an unambiguous means to provide a billing record such that the service provider can be billed by the network provider on an individual service address connected basis in conjunction with a record of houses passed and not yet connected. | 04-11-2013 |
