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| Number | Title | Issue Date |
| 8150348 | TV tuner and the manufacturing method thereof A TV tuner includes an Ultra High Frequency (UHF)/Very High Frequency (VHF) tracking filter, an UHF/VHF matching circuit and a single conversion Tuner IC. The UHF/VHF tracking filter includes a first Low-Temperature Co-fired Ceramics (LTCC) inductor, a first varacto... | 04/03/2012 |
| 7979040 | Method for adjusting tuning circuit and receiver circuit Disclosed herein is a method for adjusting the tuning frequency of a tuning circuit, which is implemented as a parallel circuit of a coil and series circuits Ai each including a capacitor Ci and a switch device Qi (i=one to n, where n denotes an integer at least equ... | 07/12/2011 |
| 7970368 | Wired cellular telephone system Telephone apparatus, including a cable television (CATV) network interface, which is adapted to be connected to a CATV network so as to receive downstream cellular telephone communication signals transmitted at a downstream intermediate frequency (IF) via the CATV n... | 06/28/2011 |
| 7440736 | Intermediate frequency circuit for television tuner with improved intermediate frequency characteristic An intermediate frequency circuit includes an intermediate frequency tuning circuit which resonates parallel to an intermediate frequency signal, a N−1 channel trap circuit connected to the output of the intermediate frequency tuning circuit, for removing voice si... | 10/21/2008 |
| 7415258 | Television tuner capable of reducing gain deviation when low-band or high-band signal is received A television tuner includes: low band and high-band receiving units; a mixer that frequency-converts low-band television signals from the low-band receiving unit or high-band television signals from the high-band receiving unit; first and second switching diodes tha... | 08/19/2008 |
| 7356311 | Wireless audio signal and control signal device and method thereof A signal transmission arrangement includes a signal transmitter and a signal receiver wirelessly communicating with the signal transmitter. The signal transmitter includes a hybrid signal device to hybridize the audio signal with the control signal to form a consoli... | 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 |
| 7324832 | Method and system for a mobile architecture that supports a cellular or wireless network and broadcast utilizing an integrated single chip cellular and broadcast silicon solution In an RF communication system, aspects for supporting cellular or wireless network and broadcast utilizing an integrated single chip cellular and broadcast silicon solution may comprise receiving in a mobile terminal, a plurality of cellular frequency band communica... | 01/29/2008 |
| 7313414 | Method and system for mobile receiver antenna architecture for European cellular and broadcasting services A method for an antenna architecture that handles European band cellular and broadcast channels may be provided. The method may comprise receiving at a first radio frequency integrated circuit (RFIC) integrated within a mobile terminal, first signals via a first ant... | 12/25/2007 |
| 7305225 | Radio signal receiver A motor vehicle entertainment system includes a radio receiver and a control unit. The control unit receives a first status signal indicative of whether or not a motor vehicle door has been unlocked and initiates the application of power to the radio receiver upon t... | 12/04/2007 |
| 7289781 | Device for receiving digital signals A device for receiving digita1 signals comprising at least one receiving antenna for receiving signals, a measuring means for determining parameters of relevance to signal quality of signals received by the antenna, and a digitizer for the signals received by the an... | 10/30/2007 |
| 7289780 | Band switchable type tuning circuit of television signal A band switchable type tuning circuit has first switch means interposed between a power supply Vcc and an anode of a switch diode, a first resistor whose one end is connected to a cathode of the switch diode, second switch means interposed between the other end of t... | 10/30/2007 |
| 7283795 | Receiver device having improved selectivity characteristics In a UHF band operation, a Bu terminal supplies a power supply voltage, and a (BL+BH) terminal does not supply the power supply voltage. Thereby, switching diodes are turned on, and a switching diode is turned off. In the UHF band operation, only a UHF signal in a s... | 10/16/2007 |
| 7277684 | Antenna amplifier and shared antenna amplifier An object of the invention is to receive a weak signal with high sensitivity and reduce distortion and signal suppression when a strong interference signal exists. When a high-frequency signal received by an antenna is to be amplified by an antenna amplifier and whe... | 10/02/2007 |
| 7269424 | Mobile terminal implementing a ranging signal receiver and method Mobile terminal implementing a ranging signal receiver and method. Means are provided to incorporate ranging signal reception capability into a mobile terminal (such as a UMTS terminal) notwithstanding the fact that the ranging signal has a bandwidth that is wider t... | 09/11/2007 |
| 7257398 | Telephone set, communication adaptor, home appliance control method, and program recording medium The invention relates to a telephone set comprises a connection apparatus to execute a connecting process for enabling transmission and reception of an information signal to and from a home appliance such as a general audio device remote-controllable by radio commun... | 08/14/2007 |
| 7236756 | Tuning signal generator and method thereof A front end tuning system includes a tuning signal generator. The tuning signal generator includes a digital-to-analog converter (DAC) to receive a pre-conditioned tuning signal at a reference input, to receive a digital value at a digital control input, and to prod... | 06/26/2007 |
| 7171176 | Tuner system self adaptive to signal environment A circuit and method for adjusting the operating characteristics of a tuner in accordance with information derived from the signals being processed by the tuner. Depending upon signal type and/or signal strength, the power levels of certain components are adjusted a... | 01/30/2007 |
| 7155182 | Varactor with extended tuning range The invention proposes a device for high-frequency and/or radio-frequency tuning comprising within one IC-package a first variable capacitor (C1) and at least one second capacitor (C2), each of the at least one second capacitor (C2) ... | 12/26/2006 |
| 7139039 | Input circuit of television tuner A VHF tuning circuit includes two tuning inductance devices connected in series with each other and having a junction thereof connected to an input terminal, and a first switch diode connected in parallel with the two in series inductance devices, and turned OFF at ... | 11/21/2006 |
| 7135924 | Cross-talk reduction circuit and method therefor In one embodiment, a pair of differential amplifiers have outputs coupled together. A signal received on one input results in signals coupled to the outputs that substantially cancel each other at the outputs. ... | 11/14/2006 |
| 7102465 | Frequency discrete LC filter bank An inductive (“L”)-capacitive (“C”) filter bank has application for use in a television receiver. The LC filter includes inductors configured in at least one inductive (“L”) bank, and capacitors configured in at least one capacitive (“C”) bank. The i... | 09/05/2006 |
| 7088202 | Methods and apparatus for an improved discrete LC filter A discrete inductive-capacitive (LC) filter selects between at least two inductor banks to tune the LC filter. The filter receives an input signal that includes one or more bands of frequencies. A control signal selects a band of frequencies for processing. A first ... | 08/08/2006 |
| 7072685 | Digital/analog broadcast receiver When a digital broadcasting channel and an analog broadcasting channel, over which the same program is currently being transmitted, are provided by a broadcasting station, upon each depression of a digital/analog switching button on an operating unit, an MPU alterna... | 07/04/2006 |
| 7019790 | Integrated tuner circuit and television tuner using an integrated tuner circuit An integrated tuner circuit includes a first terminal to which a UHF TV signal is input via a UHF amplifier. The amplifier is switched to an operating state when a UHF TV signal is received. A switching-voltage generation circuit includes a first switching circuit f... | 03/28/2006 |
| 6983126 | Audio transmitter and remote control receiver and storage apparatus An audio transmitter and remote control unit receiver and storage apparatus for transmitting audio signals from electronic equipment, such as a television set, to individuals remotely located therefrom includes an audio transmitter for disposition adjacent to the el... | 01/03/2006 |
| 6957053 | Method for selection of a receiver tuning frequency Method for tuning the reception of radio broadcast signals to an FM RDS transmitter using program related data and transmitter related data and receiver executing the method, providing a band scanning search for detecting FM RDS transmitters exceeding a predetermine... | 10/18/2005 |
| 6940365 | Methods and apparatus for an improved discrete LC filter A discrete inductive-capacitive (LC) filter selects between at least two inductor banks to tune the LC filter. The filter receives an input signal that includes one or more bands of frequencies. A control signal selects a band of frequencies for processing. A first ... | 09/06/2005 |
| 6933984 | Television tuner which maintains UHF band tuning circuit bandwidth constant in low to high band range A tuning circuit's bandwidth is maintained almost constant throughout a UHF low to high band range so as to prevent interference by a neighboring channel, particularly in receiving high band television signals, and also to improve NF in receiving low band television... | 08/23/2005 |
| 6904271 | High-frequency-signal switching circuit suppressing high-frequency-signal distortion A high-frequency-signal switching circuit includes a first high-frequency-signal path which includes first and second diodes connected in series with a high-frequency amplifier stage therebetween, and a second high-frequency-signal path formed of a third diode conne... | 06/07/2005 |
| 6903783 | Tuner for receiving television signal in VHF band and UHF band In a television tuner, a predetermined bias voltage is applied to the anode of a first switching diode. A power supply voltage is applied to the collector of a switching transistor via a power supply resistor, and the emitter of the switching transistor is grounded.... | 06/07/2005 |
| 6900850 | Television tuner having simplified wiring for interconnection and having miniaturized integrated circuit A switching voltage generation circuit is provided with a first switch transistor, a second switch transistor, and a third switch transistor whose base is connected to the base of the second switch transistor. When a television signal of a UHF band is to be received... | 05/31/2005 |
| 6876401 | FM-broadcast-receivable television tuner for preventing adjacent-channel interference A trap circuit system includes a first trap portion and a second trap portion. In the first trap portion, a first capacitor is provided in parallel to a first switch diode. A control voltage is applied to the cathode of the first switch diode so as to change the tra... | 04/05/2005 |
| 6760079 | TV tuner unit having a resonance network A TV tuner unit uses a frequency-selective element before or after the resonance stage of either a UHF or VHF tuner for separation of UHF signals from VHF signals. Thus, performance is preserved while eliminating the need for circuitry including high and low pass fi... | 07/06/2004 |
| 6535722 | Television tuner employing micro-electro-mechanically-switched tuning matrix A tuning circuit, as for a television receiver or video recorder, employs switchable tuning circuits including micro-electronic electro-mechanical switches for selecting the ones of an array of capacitors and/or inductors as is useful in tunable circuits.... | 03/18/2003 |
| 6307600 | Tuning with diode detector A tuner, for example, for a television receiver, includes a UHF and a VHF section and a mixer oscillator stage. It is known that the VHF frequency band has to be split in at least two parts to handle the VHF signals. To that end, the mixer oscillator stag... | 10/23/2001 |
| 6259902 | Dual channel superheterodyne receiver A dual channel receiver (100) includes a front end bandpass filter (120) that has a front end bandwidth, a first mixer (130), a second mixer (135), and two essentially identical receiver back ends (190, 195). The front end bandpass filter splits a receive... | 07/10/2001 |
| 6243567 | Television tuner, tuner integrated circuit and method of controlling television tuner There is provided a television tuner including a first amplifier for amplifying received signals having frequencies of VHF-L and VHF-H bands, a first converter for converting a frequency of the received signals having been amplified by the first amplifier... | 06/05/2001 |
| 6192220 | Phase lock loop system with ultrafast lock times for half duplex time division multiple access wireless data applications A method of providing low energy consumption ultrafast lock time in a mobile communication system normally operating at slower lock times and requiring occasional ultrafast lock times when switching from the transmit mode to the receive mode and/or from t... | 02/20/2001 |
| 6134426 | Radio receiver A description is given of a radio receiver, in particular a VHF receiver, including a receiver stage, an evaluation stage, a memory stage, an operating element, a display element and a control unit. A database of stations which meet predetermined receivin... | 10/17/2000 |
