Matches 1 - 50 out of 182 1 2 3 4 >


Match Document Document Title
8964877 Changing power to first transmission signals upon detecting ISM band  
A method includes transmitting a first set of transmission signals over an operating frequency band. The method includes detecting if a second set of transmission signals are transmitted adjacent...
8725097 Amplifier for cable and terrestrial applications with independent stage frequency tilt  
A system comprises a first amplifier stage including a first amplifier, a second amplifier stage including second and third amplifiers, and a fourth amplifier. The first amplifier stage includes...
8554155 Matching circuit for a multi-band antenna and multi-band radio incorporating the same  
A device for multiple band frequency communication may include a chassis, a transceiver for receiving and transmitting voice and data communications over any one of multiple frequency bands, an...
8538361 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...
8521111 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...
8306492 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...
8280326 Receiver comprising a radiofrequency splitter  
A receiver comprises a radio frequency splitter and respective tuning elements, which are coupled to respective outputs of the radio frequency splitter One of these tuning elements has a control...
8089566 Television tuner integrated circuit and television tuner for attenuating interference signal  
A tuner integrated circuit is connected, in a preceding stage thereof, to an RF amplifier including a UHF dual gate FET and a VHF dual gate FET. In the reception of a signal of the UHF band, a...
7957714 Radio-frequency tuner with differential converter  
A system for tuning a radio-frequency signal includes a first input path, a second input path, a common reference generator, a selector, a mixer, and a filter. The first input path and the second...
7949341 Method and system for mobile receiver antenna architecture for world band cellular and broadcasting services  
A method for an antenna architecture that handles World band cellular and broadcast channels may be provided. The method may comprise receiving at a first radio frequency integrated circuit (RFIC)...
7929932 Removing harmonic and co-existence interference in radio receivers  
A wireless device includes a two-stage filter that separates UHF and VHF transmission bands in such a way as to maximize cross channel isolation, so preventing cross channel signal contamination...
7852855 Method for controlling multi-user TCP/IP access over a satellite communication channel  
A method is provided for controlling TCP/IP access includes receiving a request from a requestor for data transmission over a satellite communication channel, determining whether the request for...
7756500 Active inductor circuits for filtering in a cable tuner circuit  
An integrated front-end filter for a tuner provides an array of from several to a multitude of passbands, each for passing at least one but less than all channels designated in a band of...
7650124 Balanced and unbalanced electronic circuit and television tuner  
A television tuner includes an unbalanced output type VHF-side block, a balanced output type UHF-side block, and a mixing circuit that performs frequency conversion on the output from the VHF-side...
7567784 Tuner, broadcast signal processing apparatus comprising the same, and broadcast signal processing method  
A tuner, a broadcast signal processing apparatus and method, which satisfy reception sensitivity of both terrestrial and cable televisions, when selecting a broadcast signal through a single...
7505791 Antenna setting apparatus  
An antenna setting apparatus that allows a user to receive a broadcast from a desired direction easily and excellently is configured as follows: an antenna setting apparatus includes: a control...
7480495 CATV tuner and one-chip IC used therein  
A CATV tuner includes a metallic housing having first through fourth partitioned chambers. In the first through fourth partitioned chambers, a data circuit, an input filter circuit, a first mixer...
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...
7343142 Tuner  
A digital terrestrial tuner has an RF input connected to a filter arrangement, whose output signal is supplied to a zero intermediate frequency frequency changer. The filter arrangement comprises...
7312672 Local oscillating circuit for receiving high-band and low-band signal  
A local oscillating circuit includes an integrated circuit that has an oscillating transistor, protection diodes against electrostatic damage, and first and second terminals each being connected...
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...
7286794 Method and system for joint broadcast receiving and cellular communication at mobile terminal or device without service control  
Methods and systems for communicating information via a plurality of different networks are disclosed herein. Aspects of the method may comprise receiving broadcast information in a mobile...
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...
7184733 High frequency receiving device, integrated circuit used for the same, and TV receiver using them  
An oscillation frequency changing means is inserted between a tuner and an oscillator of local oscillator (56) of a high frequency receiving device, and the oscillation frequency changing means,...
7142833 Matching unit  
A matching unit includes a switching means for switching an inductance of a first inductor. This switching means sets an inductance such that a first inductor shows an inductance property to both...
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...
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...
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...
6944431 High-frequency signal transmission apparatus and electronic tuner using the same  
An electronic tuner has an input terminal, a mixer receiving the signal fed into the input terminal, a matching circuit connected to an output of the mixer, a band-pass filter connected to an...
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...
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...
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...
6750734 Methods and apparatus for tuning an LC filter  
A receiver, such as a television receiver, tunes an inductive (ā€œLā€) and capacitive (ā€œCā€) filter based on a desired frequency. The LC filter includes a plurality of inductors, configured in at...
6751449 Circuit configuration for band changeover in high-frequency receivers  
Conventional circuit configurations for range changeover between different bands (UHF, VHF) in television receivers utilize MOS tetrodes whose operating point adjustment is unproblematic. The MOS...
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...
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...
6246866 Dual band receiver  
A receiver (100) provides dual band features by providing two signal paths (106, 108) off an antenna (102), one for UHF operation (106) and one for VHF operation (108). The two signals paths (106,...
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...
6070061 Adjacent channel rejection in double conversion tuner  
A double conversion tuner includes a first filter that is relatively flat over a 6 MHz band at 920 MHz. A pair of series-parallel resonant circuits form notch filters that operate on the...
6055419 Radio monitoring apparatus and procedures  
A dual-band radio monitoring apparatus which provides the reception of transmissions on commercial AM/FM frequency band(s) to be monitored and interrupted by transmission(s) on a controlling...
5983088 Wide frequency spectrum television tuner with single local oscillator  
A tuner includes a conversion (or heterodyning) stage, including a local oscillator and a mixer, for converting an RF signal corresponding to a selected channel to an IF signal. The local...
5930696 Broadband low-noise low-intermodulation receiver  
An RF receiver apparatus that is suitable for implementation as a monolithic IC core with minimum external components is disclosed. The receiver apparatus features low noise figure, low...
5821838 Double tuning circuit of TV tuner  
The double tuning circuit of a TV tuner provided by the present invention comprises a primary tuning circuit and a secondary tuning circuit coupled with each other wherein at least one of the...
5752179 Selective RF circuit with varactor tuned and switched bandpass filters  
A selective RF circuit for a double conversion tuner includes three sections: low and mid band double tuned bandpass sections and a high band double tuned bandpass section. Each section includes...
5517529 UHF/L-Band monolithic direct digital receiver  
A monolithic direct digital UHF/L-Band receiver for receiving and processing a UHF/L-Band analog signal and deriving digitized samples, the receiver operating in a tuning frequency range centered...
5475876 Tuner unit having electromagnetically isolated UHF and VHF section with no noise  
In a tuner unit including an antenna input filter section, a UHF section, a VHF section, and a PLL section which are electromagnetically separated by walls, an inductor for a VHF local oscillator...
5471652 Frequency synthesizer and multiplier circuit arrangement for a radio telephone  
The invention relates to a general purpose circuit arrangement for a radio telephone wherein the universal application possibilities have been provided by phase-locked circuits (PLL1 to PLL3) and...
5355532 Television tuner unit having shield housing  
The present invention relates to a television tuner capable of receiving television broadcasting, CATV and satellite broadcasting. The television tuner includes a double superheterodyne tuner for...
5214399 Circuit configuration for range changing in tuners  
A circuit configuration, especially in a television set, for range switching in tuners having at least two ranges includes at least two preselector stages each being assigned a respective tuner...
5204645 Circuit configuration for range switching in tuners  
A circuit configuration for range switching in tuners having at least two ranges includes at least two preselector stages each being assigned to a respective tuner range. Each of the preselector...

Matches 1 - 50 out of 182 1 2 3 4 >