Class / Patent application number | Description | Number of patent applications / Date published |
455426200 | Wireless service for fixed premises equipment (e.g., Wireless Local Loop (WLL) Telco emulator, etc.) | 12 |
20080261588 | TDD FDD communication interface - TDD access equipment modified by introducing a frequency change at the normal TDD guard point, with respective downlink or uplink periods for individual subscriber stations offset to form overlapping frames. Cyclo-stationary processing, block equalization, and burst timing coordination allow the boundary between downlink and uplink portions of both frames to be set dynamically, improving spectral efficiency. Fast frequency switching within an allotted physical slot enables synchronization of time-sharing the dedicated frequencies to be maintained among subscriber stations. Duplex spacing between downlink and uplink frequencies for individual subscriber stations, combined with in-depth filtering of received signals, prevents spurious out-of-band transmission signal strength from reaching an interference level. | 10-23-2008 |
20080268835 | Wireless communication system and device for coupling a base station and mobile stations - A wireless communication system comprising first and second transceivers. The first transceiver communicate with a base station, wherein the base station communicates with the first transceiver and a plurality of other wireless communication devices according to a wide area wireless communication protocol. The second transceiver is coupled to the first transceiver and communicates with a first mobile station, wherein the second transceiver communicates with the first mobile station according to a local area wireless communication protocol. The first transceiver receives from the base station a first downlink signal intended for the first mobile station and transmits the first downlink signal to the second transceiver. The second transceiver re-transmits the first downlink signal to the first mobile station as a second downlink signal according to the local area wireless communication protocol. | 10-30-2008 |
20090023442 | SYSTEM AND METHOD TO ENABLE UNLICENSED MOBILE ACCESS ACROSS TERMINALS - A method and apparatus is provided for establishing a Global System for Mobile communications (GSM) call through an Unlicensed Mobile Access (UMA) Network by enabling Voice over IP (VoIP) access into a GSM network from various IP-enabled mobile device terminals and a mechanism to authenticate and use such terminals without any change to the UMA or GSM network. | 01-22-2009 |
20090163201 | PRESENCE-BASED CALL SWITCHING - To facilitate establishment of connections between dual-mode mobile wireless devices within a local wireless data network, at a network gateway for the local wireless data network, receiving from a first dual-mode mobile wireless device following entry of the first dual-mode mobile wireless device to the local wireless data network a registration request, a first dual-mode mobile wireless device telephone directory number (DN), and a first dual-mode mobile wireless device session initiation protocol (SIP) uniform resource identifier (URI). A first device dynamic data network address is assigned to the first dual-mode mobile wireless device. The first device DN and the first device SIP URI are forwarded to a database for storage so that the first device SIP URI is associated with the first device DN in the database. The first dual-mode mobile wireless device is returned a network SIP URI for the wireless data network. | 06-25-2009 |
20090197594 | System and Method for Fixed Mobile Convergence Using a Residential Gateway Apparatus - A system and method for providing call mobility for a dual-mode phone between a cellular network and a home wireless network for a dual-mode phone having a cellular identity and a home identity, wherein the home identity is active when the dual-mode phone is in communication with the home wireless network. The system comprises a residential gateway to connect the home wireless network to a public network, and a VoIP service provider in communication with a mobile switching center on the cellular network and the public network. After placing or receiving a call, the dual-mode phone sends a signal to the residential gateway to initiate the movement of the call between the cellular network and the home wireless network while the call is ongoing. | 08-06-2009 |
20090247152 | SYSTEMS, METHODS AND APPARATUS FOR TRANSMITTING DATA OVER A VOICE CHANNEL OF A WIRELESS TELEPHONE NETWORK USING MULTIPLE FREQUENCY SHIFT-KEYING MODULATION - The various embodiments described herein generally provide apparatus, systems and methods which facilitate the transmission of data between a client device and a remote device over a voice channel of a telephone network. More particularly, data from a client device is modulated into an audio signal using multiple frequency shift keying (MFSK) techniques and transmitted to the remote device over a voice channel of a wireless telephone network during a phone call. The frequency of the audio signal is selected based on the value of the data to be transmitted. The remote device receives the audio signal and determines the frequency of the audio signal to extract the transmitted data. | 10-01-2009 |
20100167722 | PRIMARY CONNECTION STRATEGY FOR VEHICLE ORIGINATED CELLULAR COMMUNICATION TO A CALL CENTER - A system and method for making vehicle originated calls to a telematics service provider or other call center. The method includes identifying a call type associated with a desired wireless communication of speech or data to the call center, and then carrying out one of a number of different call connection processes depending on the call type. For voice channel cellular connections, an in-band modem cellular connection is preferably established in most instances using a connection retry strategy that includes primary, secondary, and possibly tertiary connection attempts. The system and method can be carried out in connection with various cellular system technologies, but is especially suited for use with GSM systems. | 07-01-2010 |
20110021189 | Apparatus, Method, and Computer-Readable Medium for Interfacing Devices with Communications Networks - An apparatus, method, and computer-readable medium for interfacing devices with communications networks are provided. According to one aspect, an interface device for providing communications between a first communications network and a device associated with a second communications network comprises one or more inputs, one or more outputs, and logic. The one or more inputs of the interface device receive data in a first format from the first communications network. The logic translates the data to a second format compatible with the second communications device. The translated data is then transmitted to the device associated with the second communications network via the one or more outputs. The first and second formats may comprise rich media content. | 01-27-2011 |
20120034914 | Off-Hook Triggered Cellular-Landline Conference Call - A method and system for conferencing a landline telephone into a cellular telephone call is disclosed. In response to a landline telephone going off-hook, a cellular telephone corresponding to the landline telephone is identified. When a determination is made that the corresponding cellular telephone is currently engaged in a call, the landline telephone is conferenced into the cellular call. If the cellular telephone is subsequently disengaged from the call, the original cellular call has been effectively transferred to the landline telephone. The inventive method and system may be linked to a cellular-landline conference call service. For example, a user may subscribe to such a service so that the user may automatically transfer a call from the user's cellular telephone to the user's home or office landline telephone when that landline telephone is taken off-hook. | 02-09-2012 |
20130078999 | DELAY OF ACCESS TO ASSIST MANAGEMENT OF CONGESTION IN RADIO ACCESS NETWORKS - A radio access network includes user equipments configured to one of several classes, and is capable of being configured to bar access, at least temporarily, from a user equipment according to its class in order to reduce congestion, by transmitting equipment class barring data which indicates at least one class of user equipment which is to be barred. A user equipment receives signalling data including an equipment class access barring data item, and one or more additional data items indicative of loading of the radio access network. The user equipment matches its class to the equipment class barring data item, and in response to the matching, sets a barred status at the user equipment. In response to the barred status setting, the user equipment determines a delay time for an attempt to access the radio access network, based at least in part upon the one or more additional data items. | 03-28-2013 |
20140141771 | TELEPHONE SWITCH, CALL PICK-UP METHOD THEREFOR, CALL PICK-UP PROGRAM THEREFOR, AND TELEPHONE SYSTEM - Provided is a telephone switch such that an incoming call to an extension within the telephone switch can be picked up from a mobile terminal. The telephone switch includes: a receiving dial table which registers dial data that a mobile terminal uses to pick up an incoming call to a fixed-line telephone connected to the telephone switch; a conversion dial table which registers a call pick-up number used within the telephone switch for carrying out call pick-up of an incoming call to the fixed-line telephone; and a dial conversion unit configured such that when dial data sent by the mobile terminal is received when there is an incoming call to a fixed-line telephone, the dial conversion unit determines whether or not the received dial data sent from the mobile terminal matches the dial data in the receiving dial table, and if the dial data match, converts the received dial data to a call pick-up number in the conversion dial table such that the incoming call to the fixed-line telephone is picked up from the mobile terminal. | 05-22-2014 |
20140256314 | METHODS AND APPARATUSES FOR CONNECTING A CELLULAR PHONE WITH A FIXED PHONE UNDER INSTRUCTION OF A SMALL BASE STATION - The present disclosure presents methods and apparatuses for carrying out a wireless call at a small base station via one of multiple available phones, which may include a fixed phone and a cellular phone. For instance, some example methods described in the present disclosure may include establishing communication with a cellular phone and a fixed phone and transmitting a connection command message to each of the cellular phone and the fixed phone commanding the cellular phone and fixed phone to establish a communicative connection. Furthermore, such example methods may include receiving a cellular phone call indication message from a network indicating the existence of an incoming call request for the cellular phone, transmitting a paging message associated with the incoming call request to the cellular phone, and executing a voice call, wherein the call is conducted by one of either the cellular phone and the fixed phone. | 09-11-2014 |