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| Number | Title | Issue Date |
| 8150347 | Radio communications method, transmitter, and receiver The transmitter transmits at least any one of the multiple kinds of generated pilot signals corresponding to the multiple types of communications services by use of a predetermined band set in a part of a transmission band beforehand, and transmits the other kinds o... | 04/03/2012 |
| 8041321 | Apparatus and methods for providing multi-band operation in a mobile computing device Various embodiments for providing multi-band operation in a mobile computing device are described. In one or more embodiments, a mobile computing device may be arranged to support quad-band GSM communication in the GSM-850, GSM-900, GSM-1800, and GSM-1900 frequency ... | 10/18/2011 |
| 8041320 | Receiver for multiple signal spectra A radio receiver for receiving first signals of a first frequency spectrum having principal energy in a first frequency band and second signals of a second frequency spectrum having principal energy in second and third frequency bands, located on either side of the ... | 10/18/2011 |
| 7941113 | Wide bandwidth transceiver The wide bandwidth transceiver includes a receiver section, a transmitter section, and a local oscillation module. The local oscillation module generates a first and a second local oscillation. The transmitter section converts an outbound baseband signal and/or a lo... | 05/10/2011 |
| 7835712 | Apparatus and methods for providing multi-band operation in a mobile computing device Various embodiments for providing multi-band operation in a mobile computing device are described. In one or more embodiments, a mobile computing device may be arranged to support quad-band GSM communication in the GSM-850, GSM-900, GSM-1800, and GSM-1900 frequency ... | 11/16/2010 |
| 7831230 | Terminal and associated transducer assembly and method for selectively transducing in at least two frequency bands A terminal is provided for selectively communicating in at least two frequency bands. The terminal includes an antenna transducer including a first port and a second port, where the antenna transducer is capable of selectively transducing first radio signals (e.g., ... | 11/09/2010 |
| 7787843 | Multiple band direct conversion radio frequency transceiver integrated circuit A multiple band direct conversion radio frequency (RF) transceiver integrated circuit (IC) includes a multiple band direct conversion transmitter section, a multiple band direct conversion receiver section, and a local oscillation module. The multiple band direct co... | 08/31/2010 |
| 7706763 | System and method for switching operating modes of a mobile station When operating a mobile station in an Enhanced General Packet Radio Service (EGPRS)-compliant mode of operation, a first performance of the mobile station (110) in the EGPRS-compliant mode of operation is evaluated based upon received operating parameters. A ... | 04/27/2010 |
| 7664475 | Multi-band wireless transceiver and method of controlling the same A multi-band wireless transceiver having a plurality of signal-processing paths, and further having a function of making wireless communication through a plurality of frequency bands by selecting one of the signal-processing paths, includes a band identification cir... | 02/16/2010 |
| 7542747 | Wide bandwidth transceiver The wide bandwidth transceiver includes a receiver section, a transmitter section, and a local oscillation module. The local oscillation module generates a first and a second local oscillation. The transmitter section converts an outbound baseband signal and/or a lo... | 06/02/2009 |
| 7512388 | Multiband or multimode front end antenna switch A multi-band communication device with a front end antenna switch module having a reduced number of control inputs is disclosed. Control over an antenna switch modules occurs via control inputs from a controller or processor to enable operation over multiple bands o... | 03/31/2009 |
| 7489914 | Multi-band RF transceiver with passive reuse in organic substrates The present invention allows for the use of chip-package co-design of RF transceivers and their components by using discrete active devices in conjunction with passive components. Two particular components are described, including voltage controlled oscillators (VCO... | 02/10/2009 |
| 7480497 | Multicarrier receiver and method for carrier frequency offset correction and channel estimation for receipt of simultaneous transmissions over a multi-user uplink Multicarrier receivers and methods for carrier frequency offset correction and channel estimation for receipt of simultaneous transmissions over a multi-user uplink are generally described herein. Other embodiments may be described and claimed. ... | 01/20/2009 |
| 7469131 | Terminal and associated transducer assembly and method for selectively transducing in at least two frequency bands A terminal is provided for selectively communicating in at least two frequency bands. The terminal includes an antenna transducer including a first port and a second port, where the antenna transducer is capable of selectively transducing first radio signals (e.g., ... | 12/23/2008 |
| 7460846 | Digital video broadcast-terrestrial (DVB-T) receiver interoperable with a GSM transmitter in a non-interfering manner using classmark change procedure A method and a device used for displaying wideband information to a user has a return channel made through a cellular mobile terminal providing interactivity. The device (10) has a first antenna (12) and a second antenna (20), a receiver (14,... | 12/02/2008 |
| 7426400 | Wireless telecommunications overlay system A wireless communication system includes first and second communication systems and a controller. The first communication system receives a first control signal indicating a first power level and receives first communications. The first communication system formats ... | 09/16/2008 |
| 7418246 | Physical layer unit for transmitting or receiving various signals, wireless LAN system including the same, and wireless LAN method using the wireless LAN system A physical layer unit (PLU) for receiving (and transmitting) various signals, a wireless Local Area Network (LAN) system including the PLU, and a wireless LAN method using the wireless LAN system. The wireless LAN system is capable of receiving signals of different ... | 08/26/2008 |
| 7418247 | Radio-frequency receiver A radio-frequency (RF) receiver includes an input terminal for receiving RF signals in a first frequency band and a second frequency band lower than the first frequency band, a first tuned filter allowing a signal of a passing frequency in the RF signal in the first... | 08/26/2008 |
| 7405772 | Broadcasting receiver Single processing of the first channel search using the analog broadcasting tuner enables not only analog broadcasting channel to be detected but also the existence of digital broadcasting channel to be estimated. Furthermore, the acquisition of information transmit... | 07/29/2008 |
| 7403750 | Reuse of digital-to-analog converters in a multi-mode transmitter A transmitter for generating modulated signals is shown, wherein in a first-type operating mode, a first digital signal is input into a digital-to-analog converter to obtain a first analog signal that is input into a first-type unit, in which a first-type modulated ... | 07/22/2008 |
| 7395040 | Multiple band multiple input multiple output transceiver integrated circuit A MIMO transceiver integrated circuit (IC) includes a plurality of multiple band direct conversion transmitter sections, a plurality of multiple band direct conversion receiver sections, and a local oscillation generation module. Each of the plurality of multiple ba... | 07/01/2008 |
| 7395043 | Data receiver adaptive to RSSI and a method of determining its threshold A modem generates a new RSSI threshold value in response to a flag signal representing the quality of the threshold value indicated by the result of error detection supplied from one monitor, and supplies the generated threshold value to another monitor. The RSSI th... | 07/01/2008 |
| 7376402 | Multiband RDS radio receiver A radio receiver having an FM band tuner, an AM band tuner, a controller coupled to both said tuners, and a radio data (RD) decoder for providing radio data. The RD decoder is coupled for receiving radio data from at least one of the tuners which is tuned to a radio... | 05/20/2008 |
| 7366485 | Multimode wireless transmitter and a portable wireless device using the same The circuits of a multimode wireless transmitter are complex and large, and thus difficult to incorporate in a portable wireless device. This problem is solved for a multimode wireless transmitter by enabling the first frequency mode circuit and the second frequency... | 04/29/2008 |
| 7359690 | Single path front end with digital AGC in SDARS system A method and apparatus for automatically controlling the gain of a digital radio receiving circuit in which a single set of analogue amplifiers is used as the front end to feed two separate digital back-end, demodulating circuits, and in which, for optimal performan... | 04/15/2008 |
| 7356314 | Systems and methods for reusing a low noise amplifier in a wireless communications device A wireless communication device comprises a plurality of receive signal paths, each of the receive signal paths is configured to receive signals in a certain frequency bandwidth. The communication device also comprises an amplifier coupled with each of the plurality... | 04/08/2008 |
| 7356318 | Quadrature subharmonic mixer A quadrature subharmonic mixer comprises a polyphase filter configured to generate quadrature components of a local oscillator (LO) reference signal, a summing and scaling element configured to create additional components of the LO reference signal, and a plurality... | 04/08/2008 |
| 7356092 | Wireless communication system and communication semiconductor integrated circuit device When a transmitting oscillator is built in a communication semiconductor integrated circuit device like a high-frequency IC constituting a wireless communication system, the system prevents degradation of the accuracy of control on the output power of a power amplif... | 04/08/2008 |
| 7356349 | High-frequency module and communication apparatus A high-frequency module includes a switching circuit having a phase-shift circuit. The phase-shift circuit matches only PCS/DCS reception signals so as to be passed therethrough by setting a control-voltage input terminal to a Low level when receiving PCS/DCS signal... | 04/08/2008 |
| 7348931 | Unbalanced power feeding antenna device for making radio communications An antenna device which is connected to a radio module performing radio communications with a system using a first band and a system using a second band, has an antenna element which transmits/receives radio signals in the first and second bands. The antenna device ... | 03/25/2008 |
| 7322039 | Digital and analog broadcasting receiver A digital and analog broadcasting receiver comprises a main CPU for mainly controlling a digital broadcasting processing system and a sub-CPU for mainly performing processing such as input processing of a remote control signal by a remote control transmitter, and is... | 01/22/2008 |
| 7292834 | Switchable high frequency bandpass filter A switchable high frequency bandpass filter includes an input node and an output node, a switchable LC resonator, and a switch signal input interface circuit. The switchable LC resonator is coupled between the input node and the output node for providing a plurality... | 11/06/2007 |
| 7286808 | Broadcast receiving system and broadcast receiving method In a broadcast receiving system, a first antenna receives a broadcast signal of a first frequency band and a second antenna receives a signal of a second frequency band different from the first frequency band. A frequency conversion unit converts the signal of the s... | 10/23/2007 |
| 7280811 | Multimode wireless terminal and wireless transmitter-receiver unit A multimode wireless terminal suitable for received level monitoring for a base station serving as an intersystem handover destination includes a first wireless transmitter-receiver unit for GSM, a second wireless transmitter-receiver unit for WCDMA, and a communica... | 10/09/2007 |
| 7277499 | Additive DC component detection included in an input burst signal A method for processing an input burst signal comprising a first step for identifying an additive DC component and generating an output signal, which is representative for an estimated value of said DC component. The method further comprises a second step for detect... | 10/02/2007 |
| 7269441 | Multiband multimode communication engines A transceiver front-end having a plurality of signal paths operatively connected to at least two electrically separated antennas for transmitting and receiving communication signals in a plurality of frequency bands in GSM and W-CDMA modes. If the frequency band of ... | 09/11/2007 |
| 7250913 | Antenna assembly and method for fabricating the same An antenna assembly includes a base board having upper and lower surfaces, each of which defines a grounding domain and a dielectric domain, a first metal layer disposed on the grounding domain of the lower surface and a second metal layer disposed on the grounding ... | 07/31/2007 |
| 7245651 | Dual mode filter for mobile telecommunications A dual mode filter for mobile communication may implement two disparate cellular systems such as GSM and W-CDMA. The same transceiver may be utilized to selectively receive and transmit in either of the two systems. When the system is in a GSM area, the system sends... | 07/17/2007 |
| 7242910 | Self-calibrating radio A self-calibrating radio is described. In one exemplary implementation, a radio signal from its local voltage controlled oscillator. The calibration system automatically calibrates the radio by: (i) receiving a reference signal having a calibrated reference frequenc... | 07/10/2007 |
| 7221922 | Switch circuit and composite high frequency elements A switch circuit for switching the connection of the receiving or transmitting circuits of two communication systems to an antenna circuit, which comprises first and second switch means having two switching elements, the first switch means comprising a first inducta... | 05/22/2007 |
