With Delay Or Recording Patents (Class 455/18)
  • Patent number: 8078136
    Abstract: The interactive authentication system allows a consumer to interact with a base station, such as broadcast media (e.g., television and radio) or PC, to receive coupons, special sales offers, and other information with an electronic card. The electronic card can also be used to transmit a signal that can be received by the base station to perform a wide variety of tasks. These tasks can include launching an application, authenticating a user at a website, and completing a sales transaction at a website (e.g., by filling out a form automatically). The interaction between the base station and the electronic card is accomplished by using the conventional sound system in the base station so that a special reader hardware need not be installed to interact with the electronic card. The user is equipped with an electronic card that can receive and transmit data via sound waves. In the various embodiments, the sound waves can be audible or ultrasonic (which can be slightly audible to some groups of people).
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: December 13, 2011
    Assignee: Dialware Inc.
    Inventors: Alon Atsmon, Amit Antebi, Tsvi Lev, Moshe Cohen, Gavriel Speyer, Alan Sege, Nathan Altman, Rami Anati
  • Patent number: 8027637
    Abstract: A method and apparatus for communicating between devices is described. In one embodiment, the method comprises one or more communication devices coordinating transmissions of data packets to function as an access point with respect to a first mobile station and a second station wirelessly communicatively coupled to the one or more communication devices, and the one or more communication devices wirelessly transmitting a first packet and a second packet to the first mobile station and the second mobile station respectively at different time or at time when the transmissions overlap, at least partially, based on whether transmissions of the first and second packets would interfere with each other.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: September 27, 2011
    Assignee: Broadcom Corporation
    Inventor: Harry Bims
  • Publication number: 20110195660
    Abstract: A radio repeating system has first and second radio terminals, a radio repeater to receive a signal transmitted from the first radio terminal and transmit the signal to the second radio terminal, and a controller to control the radio repeater. The controller has a terminal signal determiner to detect a signal from the first radio terminal to determine whether the first radio terminal is in a transmission halt mode or a transmission mode, a first counter to start counting when a result of detection is the transmission halt mode, and a second counter to start counting when a result of detection is the transmission mode. The controller halts a wireless relay operation of the radio repeater when the result of detection is the transmission halt mode while the second timer is operating, or when the first timer finishes counting.
    Type: Application
    Filed: February 11, 2010
    Publication date: August 11, 2011
    Inventor: Shinji Okada
  • Patent number: 7991898
    Abstract: A user equipment (UE), method and system for controlling a simultaneous session are discussed. According to an embodiment, the system includes a UE to transmit a SIP message including simultaneous sessions support (SSS) setting information associated with the UE to a home network including a server; and the server to store the SSS setting information therein, and to set a session operation mode of the server for a simultaneous session of the UE based on, in part, the SSS setting information.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: August 2, 2011
    Assignee: LG Electronics Inc.
    Inventors: Kang-Suk Huh, Young-Hwan Park, Chan-Seok Lim, Jong-Chul Park, Young-Ae Kim
  • Publication number: 20110159808
    Abstract: The present disclosure teaches an active antenna array for a mobile communications network. The active antenna array comprises a plurality of antenna elements, at least one first splitter, at least one amplifier and at least one first coupler. The first splitter forwards at least one of at least one individual first protocol receive signal and at least one individual second protocol receive signal in a receive direction from an individual one of the plurality of antenna elements. The at least one amplifier amplifies at least one of the individual first protocol receive signal and the individual second protocol receive signal. The at least one first coupler is located in the receive direction downstream of the at least one amplifier and is adapted to forward the at least one individual second protocol receive signal to a second protocol receiver.
    Type: Application
    Filed: December 29, 2009
    Publication date: June 30, 2011
    Inventors: Peter Kenington, Martin Weckerle, Dirk Neumann
  • Patent number: 7966633
    Abstract: A method for receiving a broadcasting signal and a broadcasting signal receiver are disclosed. Even when a cell is changed while an emergency alert is output, the emergency alert can be continuously output using emergency alert table information included in the broadcasting signal and channel information of the cell. The emergency alert table information may include a cell identifier and the channel information of the cell may include virtual channel information of the cell.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: June 21, 2011
    Assignee: LG Electronics Inc.
    Inventors: Chang Sik Yun, In Hwan Choi, Kook Yeon Kwak, Hyoung Gon Lee, Won Gyu Song, Jin Pil Kim, Jong Moon Kim, Jin Woo Kim, Byoung Gill Kim
  • Publication number: 20110117835
    Abstract: A method for interrupting voice transmissions within a multi site communication system includes operating a repeater to engage in an interruptible voice communication; to identify an open burst location based on a repeat delay when the interruptible voice communication is sourced directly via a wireless network, and to identify the open burst location as irrelevant when the interruptible voice communication is indirectly sourced via a wireless network; and repeat the interruptible voice communication including the open burst location.
    Type: Application
    Filed: November 18, 2009
    Publication date: May 19, 2011
    Applicant: MOTOROLA, INC.
    Inventors: Thomas B. Bohn, Dipendra M. Chowdhary, David G. Wiatrowski
  • Publication number: 20110105017
    Abstract: The relay devices store data received from an ECU connected to each of the relay devices in the first reception buffers, respectively. During a synchronizing period, the relay devices perform transmission and reception by mainline frames including attribute value groups mutually received from the ECUs. Data read out from the databases are transmitted to the ECUs. The databases are synchronized with one another only when the relay device receives the final frame from the relay device which received all the mainline frames and issues COMMIT.
    Type: Application
    Filed: July 10, 2009
    Publication date: May 5, 2011
    Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hiroaki Takada, Ryo Kurachi, Yukihiro Miyashita
  • Patent number: 7890980
    Abstract: A method for receiving a broadcasting signal and a broadcasting signal receiver are disclosed. Even when a cell is changed while an emergency alert is output, the emergency alert can be continuously output using emergency alert table information included in the broadcasting signal and channel information of the cell. The emergency alert table information may include a cell identifier and the channel information of the cell may include virtual channel information of the cell.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: February 15, 2011
    Assignee: LG Electronics Inc.
    Inventors: Chang Sik Yun, In Hwan Choi, Kook Yeon Kwak, Hyoung Gon Lee, Won Gyu Song, Jin Pil Kim, Jong Moon Kim, Jin Woo Kim, Byoung Gill Kim
  • Patent number: 7886063
    Abstract: A user equipment (UE), method and system for processing session based communications, are discussed. According to an embodiment, the method includes receiving a message from a terminal that informs whether the terminal supports simultaneous PT (push-to) sessions; recognizing that the terminal supports simultaneous PT sessions according to the received message; and transporting data to one or more terminals through the server operating in B2BUA (Back-to-Back User Agent) mode, wherein a simultaneous PT session refers to a session where the server performs a PT session priority function or a PT session locking function.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: February 8, 2011
    Assignee: LG Electronics Inc.
    Inventors: Kang-Suk Huh, Young-Hwan Park, Chan Seok Lim, Jong-Chul Park, Young-Ae Kim
  • Patent number: 7885673
    Abstract: The present invention concerns a transmission method in a wireless telecommunication system including at least a base station intended to communicate with terminals over bidirectional communication channels, each channel supporting frames being divided into downlink sub frames and uplink sub frames, each downlink sub frame including a number of symbols intended to be transmitted to at least two terminals, wherein the transfer of at least one supplementary symbol between the base station and at least one terminal that can receive or transmit said at least one supplementary symbol is enabled.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: February 8, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Loic Brunel, David Mottier
  • Patent number: 7869761
    Abstract: Disclosed herein is a radio frequency (RF) repeater comprising an analog signal processing unit and a digital signal processing unit, wherein the analog signal processing unit includes a filtering unit; an amplification unit on receiving side; a frequency conversion unit on receiving side; a frequency conversion unit on transmitting side; and an amplification unit on transmitting side, and the digital signal processing unit includes a receiving signal detection unit; the automatic gain control unit; a feedback signal detection unit; a feedback signal combining unit; a feedback signal elimination unit; an automatic delay control unit; and the control unit. According to the RF repeater and repeating method, installation cost is reduced, limitations in output magnitude and installation are overcome, and ensuring high output power characteristics.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: January 11, 2011
    Assignees: Airpoint Co., Ltd., SK Telecom Co., Ltd.
    Inventors: Sung-Youl Park, Sung-Min Cho, Gyeong-Ho Choi, Byung-Suk Lee, Jong-Tae Ihm, Joo-Sik Lee, Sung-Jun Baik, Seong-Keun Kim
  • Patent number: 7844216
    Abstract: A repeater for re-transmitting an incoming RF signal comprising: a first antenna array for receiving the incoming RF signal; a second antenna array for transmitting an outgoing RF signal; and a transceiver for down-converting the incoming RF signal to a down-converted signal, processing the down-converted signal, and up-converting the processed signal to produce the outgoing RF signal. The first antenna array is cross-polarized with respect to the second antenna array. The repeater also comprises an echo processor for attenuating in the down-converted signal an echo signal associated with the outgoing RF signal. The echo processor delays transmission of the outgoing RF signal in order to minimize the echo signal.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: November 30, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joseph R. Cleveland, Paul G. Nelson
  • Patent number: 7831201
    Abstract: Wireless communications are transmitted from at least two radioterminals to a base station co-channel over a return link using a return link alphabet. Wireless communications are also transmitted from the base station to the at least two radioterminals over a forward link using a forward link alphabet that has more symbols than the return link alphabet. The co-channel signals are deciphered at the receiver, while the radioterminals can use a smaller return link alphabet, which can reduce the power dissipation at the radioterminals.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: November 9, 2010
    Assignee: ATC Technologies, LLC
    Inventor: Peter D. Karabinis
  • Patent number: 7756473
    Abstract: Provided are an on-channel repeater and a method thereof. The repeater receives signals on one channel and distributes the signals on the same channel by converting RF signals from a main transmitter into baseband signals; equalizing them in a high-performance equalizer, adding a repeater identifier to them; modulating the baseband signals with the repeater identifier into RF signals. The repeater includes: a receiver for receiving RF signals; a demodulator for demodulating the RF signals into baseband signals; an equalizer for equalizing the baseband signals; an adder for adding a repeater identifier to the baseband signals; a modulator for modulating the baseband signals with the repeater identifier added in the adder into RF signals; and a transmitter for transmitting the RF signals modulated in the modulator. The technology of the present invention is used to form an on-channel repeating network in an arbitrary transmission system including a digital television broadcasting system.
    Type: Grant
    Filed: December 31, 2004
    Date of Patent: July 13, 2010
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae-Hyun Seo, Yong-Tae Lee, Heung-Mook Kim, Ho-Min Eum, Sung-Ik Park, Seung-Won Kim, Soo-In Lee
  • Patent number: 7756466
    Abstract: According to a user's recording instruction, a navigation apparatus acquires reception data (music information and identification information) from a satellite digital radio apparatus on a tune basis and records the data on a hard disk. After the recording is complete, the navigation apparatus uses a size of the reception data recorded on the hard disk to determine whether or not the recording is interrupted in the middle of a tune. When the recording is interrupted, the navigation apparatus registers the tune's identification information to an interrupted recording list. The navigation apparatus then acquires identification information about a tune being received from the satellite digital radio apparatus. When the interrupted recording list registers the identification information, that is, the recording-interrupted music is rebroadcast, the navigation apparatus acquires reception data from the satellite digital radio apparatus and re-records it on the hard disk.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: July 13, 2010
    Assignee: DENSO CORPORATION
    Inventors: Teruhiko Fujita, Takeshi Iwase
  • Publication number: 20100120361
    Abstract: An ultrawideband radio transceiver/repeater provides :a low cost infrastructure solution that merges wireless and wired network devices while providing connection to the plant, flexible repeater capabilities, network security, traffic monitoring and provisioning, and traffic flow control for wired and wireless connectivity of devices or networks. The ultrawidebande radio transceiver/repeater can be implemented in discrete, integrated, distributed or embedded forms.
    Type: Application
    Filed: January 18, 2010
    Publication date: May 13, 2010
    Inventor: Theodore S. Rappaport
  • Publication number: 20100105319
    Abstract: A redriver chip is inserted between a transmitter chip and a receiver chip and re-drives differential signals from the transmitter chip to the receiver chip. The redriver chip has switched output termination that switches to a high value to detect far-end termination at the receiver chip, and to a low value for signaling. An output detector detects when the receiver chip has termination to ground and enables switched input termination to provide termination to ground on the lines back to the transmitter chip so that the far-end termination on the receiver chip is mirrored back to the transmitter chip, hiding the redriver chip. An input signal detector detects when the transmitter chip begins signaling and enables an equalizer, limiter, pre-driver, and output stage to re-drive the signals to the receiver chip. The input signal detector also causes the switched output termination to switch to the low value termination for signaling.
    Type: Application
    Filed: October 23, 2008
    Publication date: April 29, 2010
    Applicant: PERICOM SEMICONDUCTOR CORP.
    Inventors: Tony Yeung, Michael Y. Zhang
  • Publication number: 20100068992
    Abstract: An emergency communications device contains dispatch consoles for use by user that contains multiple repeaters and multiple communication networks. The multiple repeaters and multiple communication networks are used for redundancy purposes, in case the repeater or communication network in use becomes disabled for any reason. The device also contains a recorder unit capable of provided instant playback to emergency dispatch personnel independently of whether the unit is recording. The device does not require an external computer to operate.
    Type: Application
    Filed: December 18, 2008
    Publication date: March 18, 2010
    Applicant: Henry Bros. Electronics. Inc.
    Inventors: Lee Masoian, Stanley Mantel
  • Patent number: 7626974
    Abstract: A method of optimizing the timing offsets with which data frames are transmitted over the Iur/Iub interfaces of a UMTS Terrestrial Radio Access Network, UTRAN. The method comprises, for a given Iur/Iub interface or set of Iur/Iub interfaces over which identical user plane data is to be sent, defining a duration of a data frame receiving window for use by the receiving node(s), transmitting data frames from a sending node with an initial timing offset sufficient to ensure a likelihood that the frames will be received at the or each receiving node within the defined receiving window, reducing the timing offset at the sending node in a stepwise manner, and adjusting the timing offset at the sending node in response to the receipt of late Time of Arrival error reports at the sending node.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: December 1, 2009
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Janne Johannes Peisa, Mats Fredrik Sagfors
  • Patent number: 7613423
    Abstract: A method of transmission in a wireless communication system including a transmitter, a transceiver and a receiver. The transmitter transmits a first signal to the receiver. The transceiver also receives the first signal and retransmits the first signal to the receiver by modifying the signal characteristics, such that the first signal and the retransmitted signal are received substantially uncorrelated at the receiver.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: November 3, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chiu Ngo, Jun Shen
  • Patent number: 7584495
    Abstract: A real-time program transmission system and method may receive a signal from a content source, and generate two different data streams. One stream may be of a higher quality than the other. The two streams may then be inserted into time slice frames, such that a single frame carries two portions of data: one corresponding to a first time segment in the program, and a second corresponding to a different time segment in the program. A receiving mobile terminal may buffer the received data, and may use the lower quality data as a backup in the event of a transmission error in the higher quality data.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: September 1, 2009
    Assignee: Nokia Corporation
    Inventors: Miska Hannuksela, Roope Jarvinen, Imed Bouazizi
  • Publication number: 20090154533
    Abstract: Communications between a base station and a mobile station is improved through using a relay station. A transmit timing of relayed signals from the relay station is controlled so that the signals from the base station and the relay station arrive to the mobile station aligned with each other within a predetermined tolerance.
    Type: Application
    Filed: December 17, 2007
    Publication date: June 18, 2009
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ali S. Khayrallah, Havish Koorapaty
  • Patent number: 7542787
    Abstract: The present invention provides an apparatus and method for providing hands-free operation of a device. A hands-free adapter is provided that communicates with a device and a headset. The hands-free adapter allows a user to use voice commands so that the user does not have to handle the device. The hands-free adapter receives voice commands from the headset and translates the voice commands to commands recognized by the device. The hands-free adapter also monitors the device to detect device events and provides notice of the events to the user via the headset.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: June 2, 2009
    Assignee: AT&T Intellectual Property I, L. P.
    Inventors: Lan Zhang, Joseph E. Page, Jr., Barrett M. Kreiner
  • Publication number: 20090075588
    Abstract: A method of controlling a relay station in a cell of a multi-hop relay network in accordance with a one-way propagation delay between a base station in the cell and the relay station. A relay station in a cell of a multi-hop relay network including means for controlling the signal flow between the relay station and the various other stations in the cell in accordance with a one-way propagation delay between a base station in the cell and the relay station.
    Type: Application
    Filed: August 14, 2008
    Publication date: March 19, 2009
    Applicant: Fujitsu Limited
    Inventors: Chenxi ZHU, Michiharu Nakamura, Dorin Viorel
  • Publication number: 20090061767
    Abstract: A wireless communication method capable of selecting an optimum relay station, while preventing degradation of the throughput. According to this wireless communication method, in a frame 2, a relay station (1) has a line quality being equal to or greater than Th and hence decides that the delay amount be ?t1, while a relay station (2) has a line quality being less than Th and hence decides that the delay amount be ?t2. The relay station (1) uses ?t1 of the frame 2 to transmit a relayed signal to a base station. On the other hand, recognizing, by a lapse of ?t2, that the relay station (1) used ?t1 to transmit the relayed signal, the relay station (2) stops the transmission of the relayed signal. Accordingly, the base station receives only the relayed signal from the relay station (1) having the better line quality. Thus, when the line quality of the relay station (1) is better than that of the relay station (2), the relayed signal from the relay station (1) can be preferentially transmitted.
    Type: Application
    Filed: March 28, 2006
    Publication date: March 5, 2009
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ayako Horiuchi, Kenichi Miyoshi, Akihiko Nishio, Hiroaki Morino
  • Publication number: 20090036052
    Abstract: A wireless station according to the present invention is a wireless station used as one of a plurality of relay stations forming transmission paths, respectively, different from each other, in a wireless transmission system for transmitting a packet from a transmitting station to a receiving station through the plurality of relay stations, and the wireless station comprises: a reception section for receiving a packet transmitted from the transmitting station, and receiving a packet which is transmitted, based on the packet transmitted from the transmitting station, from a relay station other than the one of the plurality of relay stations, and is transmitted before the one of the plurality of relay stations performs transmission, by using a transmission parameter for obtaining a path diversity effect in the wireless transmission system; a transmission parameter estimation section for estimating the transmission parameter used by the relay station other than the one of the plurality of relay stations, based on
    Type: Application
    Filed: January 31, 2007
    Publication date: February 5, 2009
    Inventors: Kenji Miyanaga, Hitoshi Takai, Hideki Nakahara, Hidetoshi Yamasaki
  • Publication number: 20080268766
    Abstract: Terminating or otherwise preventing communications in a predefined quiet zone by imposing a time delay. In one embodiment an existing call is terminated during a transition between two wireless access points by imposing a time delay on communications through one of the access points. The time delayed signal is interpreted as noise and causes a base station to drop the call if the noise causes the signal strength from the other access point to fall below a threshold. Within a quiet zone, a signal time delay prevents a client device from responding to a base station connection instruction, which causes the base station to believe that the client device is out of range of a quiet zone access point. The time delay may be imposed by an optical fiber spool between the quiet zone access point and the base station, or other delay mechanism. One embodiment is aboard a vessel.
    Type: Application
    Filed: February 21, 2008
    Publication date: October 30, 2008
    Applicant: SeaMobile, Inc.
    Inventors: Thanaroj Narkmon, Anthony J. Bradley, Kenneth J. Ellis
  • Patent number: 7398052
    Abstract: A method for determining if a signal received at a radio receiver in a communication system is transmitted to the receiver via a direct radio link comprising the steps of: determining a signal characteristic based on one or more signal measurements collected at the receiver; comparing the signal characteristic as determined with at least one predetermined system parameter; and responsive to said comparison determining if said signal is received via a direct link.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: July 8, 2008
    Assignee: Spyder Navigations L.L.C.
    Inventors: Maurizio Spirito, Mikko Weckström, Ville Ruutu
  • Publication number: 20080160913
    Abstract: A single frequency network [100] includes a main central site [200] and a remote site [300]. The main central site [200] (a) generates a digital symbol based on an input source, (b) receives external reference information from a common source, (c) stores the digital symbol in a local memory buffer [215], (d) adds a time stamp to the digital symbol based on the external reference information, (e) transmits the digital symbol and the time stamp (f) generates an RF signal based on a modulation of a carrier by the digital symbol at a predetermined time according to the time stamp, and (g) broadcast the RF signal. The remote site [300] receives the digital symbol, determines the time stamp, generates the RF signal based on modulation of the carrier by the digital symbol at the predetermined time according to the time stamp, and broadcasts the RF signal.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Inventor: Rares GARDUS
  • Patent number: 7375628
    Abstract: An information component of an apparatus in one example selects one or more languages for transmission of one or more messages to one or more personal information components based on one or more inputs from one or more of the one or more personal information components.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: May 20, 2008
    Assignee: Lucent Technologies Inc.
    Inventor: Robert Alan Nye
  • Patent number: 7373104
    Abstract: A signal relaying apparatus includes a plurality of devices for relaying signals to and from distant nodes in a wireless communication network. At least one of the devices is an antenna; the devices may also include one or more cables. The devices are connectable to a transmitter and a receiver in the apparatus. The receiver receives a signal from one node through one of the devices; the transmitter transmits the same signal to another node through another of the devices. The signal may also be amplified or buffered before being transmitted. Because the signal is transmitted and received through different devices, the transmission of a signal packet can begin while the packet is still being received, thereby shortening the delay from reception to transmission, as compared with the delay in conventional apparatus that both receives and transmits the packet through a single antenna.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: May 13, 2008
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Youiti Kado
  • Publication number: 20080064329
    Abstract: A method for performing ranging by a mobile station in a communication system. The method includes transmitting a ranging sequence to a relay station; receiving an added signal of a reference sequence of the relay station and the ranging sequence, from the relay station; performing a correlation operation on each of the ranging sequence and the reference sequence in the added signal; estimating a time difference between the ranging sequence and the reference sequence depending on the correlation operation; and transmitting the signal to the relay station taking the time difference into account.
    Type: Application
    Filed: September 7, 2007
    Publication date: March 13, 2008
    Inventors: Young-Ho JUNG, Yung-Soo Kim, Cheol-Woo You
  • Publication number: 20080057864
    Abstract: A relaying method and system in a communication system having a Base Station (BS), a Mobile Station (MS) for communicating with the BS, and a Relay Station (RS) for relaying signals between the BS and the MS are provided. In the relaying method and system, the BS generates a BS pilot sequence and transmits the generated BS pilot sequence to the RS. wherein a partial cross correlation between the BS pilot sequence and an RS pilot sequence, being the BS pilot sequence relayed by the RS is always ‘0’. Accordingly, system capacity is more efficiently utilized.
    Type: Application
    Filed: September 5, 2007
    Publication date: March 6, 2008
    Applicant: Samsung Electronics Co., LTD.
    Inventors: Young-Ho JUNG, Yung-Soo Kim, In-Soo Hwang
  • Patent number: 7339932
    Abstract: A communication system and mobile communication station used in a communication system with low installation cost and no base station. The communication system performs radio communication by communicating a packet among numerous mobile communication stations in an expandable way by providing a relay function in a portable mobile communication station. Each mobile communication station comprises a packet reception means, a packet judging means for judging if the received packet is the self relative address or not, a relay means for transmitting the received packet when the received packet is not the self relative address, a means for generating packets, and a means for transmitting the generated packet. The packet relay means transmits the received packet in a random timing.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: March 4, 2008
    Inventor: Tsunemi Tokuhara
  • Publication number: 20080045148
    Abstract: A relay station comprising a control unit is used in order to control a transmission processing device and a reception processing device to eliminate overlap of the receiving period to receive a radio signal from the radio base station and the transmitting period to transmit a radio signal to a radio terminal under the control. Moreover, a control unit is provided to control the transmission processing device and the reception processing device to eliminate overlap of the transmitting period to transmit a radio signal to the radio base station and the reception period to receive a radio signal from the radio terminal.
    Type: Application
    Filed: June 6, 2007
    Publication date: February 21, 2008
    Inventor: Masato Okuda
  • Patent number: 7139527
    Abstract: A communication system having an excellent communication path capacity characteristic even in an insight transmission environment in which a transmitter and a receiver can see each other directly in an MIMO communication system and a wireless communication device for the communication system, including: a wireless device having a transmitter for distributing transmission data including encoded data and a training signal to a plurality of antennas, and transmitting the data as radio signals from the plurality of antennas at a predetermined timing; a plurality of wireless devices having repeaters each for receiving the radio signal, storing the radio signal into a buffer so that the radio signal is delayed by predetermined time, and transmitting the radio signal delayed; and a wireless device having a receiver for receiving the radio signals from the plurality of second wireless devices by a plurality of antennas and demodulating the encoded data by using the training signal multiplexed on the received radio si
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: November 21, 2006
    Assignees: Hitachi, Ltd., Hitachi Cable, Ltd.
    Inventors: Tsuyoshi Tamaki, Katsumi Sakai, Takashi Yano
  • Patent number: 7123875
    Abstract: A satellite digital audio radio service multipoint distribution system and method. The system comprises a satellite antenna and a satellite receiver for receiving a satellite digital audio radio signal and distributing a converted signal in response thereto. The distributed signal is received by plural receivers each of which provides a respective output signal in response thereto. In the best mode, the satellite receiver is a terrestrial repeater. The repeater decodes a stream of data received from the satellite and recodes the stream using a satellite radio terrestrial broadcast format. In the best mode, the signal is an intermediate frequency signal in the XM radio, multi-carrier modulation format. The recoded signal is rebroadcast by the repeater via a distribution network and received by a plurality of intermediate frequency (IF) receivers. The distribution system may be wireless, cable, or fiber optic.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: October 17, 2006
    Assignee: XM Satellite Radio, Inc.
    Inventors: Paul D. Marko, Craig Wadin
  • Patent number: 7072612
    Abstract: A method of identifying whether a first signal received at a subscriber station has been relayed by a repeater. The method involves measuring at the subscriber station a time difference of arrival between the first signal and a second signal. A hyperboloid or other potential solution surface is then formed from the measured time difference of arrival. A determination is then made whether or not the first signal was relayed by a repeater based on information derived from the potential solution surface.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: July 4, 2006
    Assignee: Qualcomm Incorporated
    Inventor: Samir S. Soliman
  • Patent number: 7058386
    Abstract: A mobile telephone programming and accounting system that includes an integrated hardware system interlinking a telephone unit, a telephone interlink receiver, and a central processing unit connected to the interlink receiver. The hardware system also preferably includes a receipt printer and a credit card reader. The telephone unit is preferably equipped with an internal real time clock and calendar circuit and memory store to record the time and date of calls for reporting to the central processing unit to enable tracking and detailed accounting of calls. The interlink receiver in the improved design includes a gang platform for programming multiple phone units, which may be phone units of different manufacturers, and provides for automatic programming of the multiple units and, in the retail distribution setting, programming the operating parameters and assignment of the phone unit to a service provider with encryption keys to reduce service churning.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: June 6, 2006
    Assignee: Telemac Corporation
    Inventors: Donald Scott McGregor, Gregory M. McGregor
  • Patent number: 7031701
    Abstract: The invention is directed to a method for controlling delays in a cellular telecommunications network. The delay control method according to the invention is based on a hierarchical structure of delay controlling entities, which preferably communicate only with entities directly above or below them in the hierarchy. In the downlink direction, an entity receiving data, such as a base station or a splitting unit, sends a timing report to the entity sending the data if the data is received too early or too late, whereafter the sending entity may adjust the sending time of data. The same reporting and adjusting process may be repeated through all levels of the control hierarchy, resulting in a collective control of delays from the top of the hierarchy, for example from a RNC, to the bottom, for example to a base station.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: April 18, 2006
    Assignee: Nokia Networks Oy
    Inventors: Kalle Ahmavaara, Sami Kekki
  • Patent number: 7031658
    Abstract: Single radio retransmission with a half duplex radio accomplished using Time Division Duplexing to alternate between transmit and receive cycles of a retransmission radio. This allows a single half duplex radio to function as the retransmission radio. The retransmission half duplex radio may be utilized in a communication system comprised of a plurality of remote units to increase communication range and area coverage and perform channel conversion.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: April 18, 2006
    Assignee: Harris Corporation
    Inventor: Anthony Joseph Dibernardo
  • Patent number: 7013111
    Abstract: The disclosed invention provides a wireless communications terminal apparatus that calculates its accurate position, eliminating the influence of a repeater on the calculation without using complicated processing. The terminal apparatus receives signals transmitted from a plurality of radio stations and calculates its position, using the received signals. The terminal apparatus comprises repeater detection means for detecting a signal from a repeater which transmits signals that are generated on the basis of signals transmitted from one of the radio stations and indistinguishable from the signals transmitted from that radio station from among the received signals and position calculation means for calculating its position. When the repeater detection means has detected a signal from a repeater, the position calculation means ignores the detected signal from the repeater and calculates the terminal position, using the received signals from other radio stations.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: March 14, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Mikio Kuwahara, Kenichi Mizugaki, Atsushi Ogino, Kenzaburo Fujishima
  • Patent number: 7003415
    Abstract: A delay profile estimation apparatus and a correlating unit to obtain delay profile with suppressed noise are disclosed. The delay profile estimation apparatus includes a receiving unit to receive a communication signal (received signal), a conversion unit to inverse-Fourier-transform a known pilot signal that consists of N samples, a correlating unit to obtain a correlation value between the inverse-Fourier-transformed known pilot signal and the received signal, the correlating unit being connected to the receiving unit and the conversion unit, and a delay profile generating unit for generating a delay profile of the received signal based on the correlation value. The correlating unit cyclically shifts N samples of the received signal, or the N samples of the known pilot signal when calculating the correlation value corresponding to a phase difference between the inverse-Fourier-transformed known pilot signal and the received signal.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: February 21, 2006
    Assignee: Fujitsu Limited
    Inventors: Daisuke Jitsukawa, Hiroyuki Seki, Yoshinori Tanaka
  • Patent number: 6952559
    Abstract: A digital radio stores advertisements for substitution during a broadcast for a bumpable advertisement within the broadcast. Upon detecting a bumpable advertisement within a predetermined broadcast period, the digital radio checks for higher priority stored advertisements—such as advertisements which were broadcast when the digital radio was not tuned to the station being monitored—and substitutes advertisements according to a priority scheme. Prioritization includes whether the advertisement has been played to the listener at least once during the broadcast period, and may extend to fee-based priority enhancements and tie-breakers or to selection based upon geographic location and/or direction of travel of a vehicle in which the digital radio is located.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: October 4, 2005
    Assignee: International Business Machines Corporation
    Inventors: Cary Lee Bates, Robert James Crenshaw, Paul Reuben Day, John Matthew Santosuosso
  • Patent number: 6798351
    Abstract: Frequency translation and applications of same are described herein, including RF modem and wireless local area network (WLAN) applications. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and filtering, and combinations and applications of same.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: September 28, 2004
    Assignee: ParkerVision, Inc.
    Inventors: David F. Sorrells, Michael J. Bultman, Charles D. Clements, Robert W. Cook, Joseph M. Hamilla, Richard C. Looke, Charley D. Moses, Jr., Gregory S. Silver
  • Publication number: 20040087272
    Abstract: A tone generator in a transceiver of a communications device may generate an arbitrary signal using two shift registers to generate the time intervals. During each time interval, a different capacitor is switched onto the node to change the voltage potential on that node. The amplitude of the waveform during each time interval is changed to provide the desired tone.
    Type: Application
    Filed: November 1, 2002
    Publication date: May 6, 2004
    Inventor: Luiz Franca-Neto
  • Publication number: 20040038644
    Abstract: A repeater is disclosed which is usable to permit a satellite phone, normally requiring a direct line of sight link to an orbiting satellite, to communicate with the satellite when the satellite phone is otherwise obstructed from communicating with the satellite. The repeater is usable in any situation in which the satellite phone is blocked from a direct line of site to the satellite, such as inside a building, aircraft, or natural formation (e.g., cave).
    Type: Application
    Filed: August 22, 2002
    Publication date: February 26, 2004
    Applicant: Eagle Broadband, Inc.
    Inventors: Jesus Hector Jimenez, Yves Hendrickx
  • Patent number: 6674730
    Abstract: Time alignment of a signal from a remote unit at a hub station of a multiple access system is achieved based upon an initial time indication received from the hub station at the remote unit via a satellite. The remote unit transmits a signal to the satellite, monitors for a retransmission of the signal from the satellite and measures the time difference between the outgoing and incoming signals. The remote unit, then, uses the time difference to more finely adjust the time alignment. Alternatively, the remote unit transmits a first signal advanced with respect to an on-time estimate to the hub station and receives a responsive energy indication from the hub station. The remote unit transmits a second signal delayed with respect to the on-time estimate to the hub station and receives a responsive energy indication from the hub station. The remote unit compares the two energy indications and adjusts the on-time estimate.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: January 6, 2004
    Assignee: Tachyon, Inc.
    Inventor: Karl E. Moerder
  • Publication number: 20030100261
    Abstract: An apparatus and method for delayed answering of calls directed to mobile telephones are provided. With the apparatus and method, a mobile telephone may be set to a delayed answering mode which provides a brief delay between answering of the call and actual conversation by the called party. That is, the call may be answered, but the attention of the called party is not required until the elapse of a particular delay period. This delay period allows the called party to gracefully discontinue current involvement that is requiring the attention of the called party so that the called party's attention can then be provided to the calling party. The delayed answering mode may be entered in any of a number of different ways.
    Type: Application
    Filed: November 29, 2001
    Publication date: May 29, 2003
    Applicant: International Business Machines Corporation
    Inventors: Carl Phillip Gusler, Rick Allen Hamilton