Matches 1 - 50 out of 194 1 2 3 4 >
Match Document Document Title
7305250 Apparatus and method for simultaneously performing a TV reception function and a calling function in a mobile phone  
A method and apparatus is provided to simultaneously perform a TV reception function and a calling function in a multimode mobile phone supporting two or more communication services. The apparatus...
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 terminal...
7224948 Transmitter and radio communication terminal using the same  
There are provided a transmitter and a wireless communication terminal apparatus using the same for solving a problem of undesired spurs due to harmonics of an output signal of a frequency...
7218900 Radio transmitter and receiver  
A broadband signal radio communication device which is capable of transmitting audio signals in a frequency band wider than a normal transmission band from 0 to 4 kHz in a radio system such as...
7181184 Band edge amplitude reduction system and method  
A band edge amplitude reduction system changes the filtering characteristics of a receiver based on the amplitude of signal(s) adjacent to an edge of the operating band of the receiver and/or of...
7164894 Receiver capable of switching between digital and analog broadcasting signals  
A receiver includes an FFT analysis result/group delay characteristic determining unit for determining whether or not a group of carrier signals of a digital broadcasting signal satisfies...
7158764 System and method for sending high fidelity sound between wireless units  
A system and method for sending high fidelity sound between wireless units include the capability to receive audible sounds at a wireless unit and generate signals that represent the audible...
7069510 In-vehicle audio browser system having a common usability model  
An in-vehicle audio browser includes a first set of buttons that are configured to select a preset item. A second set of buttons move forward and backward through a list of items in the audio...
7006805 Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service  
A receiver having multi-mode and multi-band functionality and capabilities is described herein. The receiver is capable of selectively operating over a plurality of bands and channels. The receiver...
6996384 Receiver and radio communication terminal using the same  
Disclosed is a small-size receiver that exhibits high sensitivity when used with a plurality of frequencies or a plurality of radio communication systems. To provide a small-size, high-sensitivity,...
6920316 High performance integrated circuit regulator with substrate transient suppression  
A regulation circuit, incorporated in a single integrated circuit with a first circuit load, which as an input coupled to a power supply which produces a source voltage, and a first output coupled...
6864926 Channel tuning apparatus  
A channel tuning apparatus which improves operability by eliminating a need for a user to select a CATV mode and allows reliable channel tuning without misjudging the presence or absence of signals...
6856797 Programmable radio receiver bandpass filter for cordless/wireless systems  
A programmable band-pass filter in a radio-frequency receiver. The band-pass filter has a bandwidth substantially covering a channel bandwidth. Once the appropriate channel in use is determined,...
6799022 Input circuit for FM/AM radio receiver  
An input circuit for an AM/FM radio receiver having an FM intermediate frequency rejection circuit and an AM image frequency rejection circuit, an FM input circuit for receiving frequency-modulated...
6795714 Multiband antenna switcher  
A multiband antenna switch is disclosed in which a matching pad ( 3 ) effects an open-circuit operation of the receiving branch at a circuit node (A) with respect to at least one higher-frequency...
6775528 Control method for a phase-locked loop  
The information delivered on the output of a detector linearly varies with the detection error only if this error lies in a certain range. To recover larger errors, oscillators are used which cover...
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...
6745046 Integrated antenna coupler element  
Integrated antenna coupler element, in particular for a multiband terminal of a mobile radio system, with an operating voltage connection, an antenna input/output, a transmit signal input, a...
6738604 Programmable IF bandwidth using fixed bandwidth filters  
A programmable IF bandwidth is achieved in either a transmitter or receiver using fixed bandwidth filters. A minimum of two IF frequencies are used. A fixed bandwidth filter that is equal to or...
6735426 Multiple-band wireless transceiver with quadrature conversion transmitter and receiver circuits  
An architecture for a multiple-band wireless transceiver with quadrature conversion receiver and transmitter circuits. A common, or shared, local oscillator is used to provide the necessary...
6734804 Automatic channel memory and selection method for a television set  
An automatic channel memory and selection method for a TV set for automatically memorizing each channel having a broadcast signal with a single input of an automatic channel set-up key regardless...
6731349 Tuner with at least a first and a second frequency band  
The invention relates to a tuner with at least a first and a second frequency band and with means for effecting a switch-over between the frequency bands, which tuner comprises a signal input...
6631255 Multi-carrier receiver for a wireless telecommunication system  
A receiver ( 10 ) for a wireless telecommunications system that provides relatively wideband signal processing of received signals without increased signal distortion so that multiple received...
6556630 Dual band telemetry system  
A dual band telemetry system useful for monitoring patients in a care unit of a health care facility. The system includes an antenna system with a first antenna tuned to receive a signal in a first...
6538704 NTSC tuner to improve ATSC channel acquisition and reception  
Reduction in the time required for an Advanced Television Standards Committee (ATSC) digital television tuner to equalize, converge, and acquire a digital television signal suitable for viewing,...
6487391 Method and apparatus for selectively receiving a satellite broadcast signal or a cable television signal  
The present invention provides an improved receiver capable of receiving either a satellite broadcast signal or a cable TV signal associated with a TV. The inventive receiver comprises a first BPF...
6484013 Dual-band transceiver and control method therefor  
A dual-band transceiver operable in two different bands is disclosed. A local oscillator generates a fundamental frequency and a second harmonic frequency. A receiving circuit receives a...
6466768 Multi-band filter system for wireless communication receiver  
A filter system comprising three or more filters, each having different passbands, and an impedance adjusting network coupled between a filter system ports and each of the ports of at least two of...
6456832 Antenna circuit  
An antenna circuit which is improved the deterioration of amplitude characteristic in a strong electric field, an antenna circuit for AM broadcasting which can surely inhibit and damp FM-band...
6393264 Radio terminal apparatus  
A portable radio terminal apparatus for transmitting and receiving signals in different frequency ranges which has an apparatus for switching the radio terminal apparatus over into a respective...
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...
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...
6252633 Television signal receiver  
To simplify the circuitry in a television signal receiver having a radio-frequency tuner (1) and at least two subsequent surface-acoustic wave filters (2, 3), in which the radio-frequency tuner (1)...
6239675 Tuning circuit having switchable capacitor controlled by a selection circuit  
An electronic system 8 is disclosed herein. The system includes circuitry 10 for processing a signal and a plurality of antennas 12a-12b. A plurality of switches 22a-22b are also included. Each of...
6201952 Radio communication apparatus  
A first local signal required for a downconverter of a reception system and an upconverter of a transmission system in a first band is generated by a synthesizer for generating a variable high...
6175746 Multiband mobile unit communication apparatus  
A multiband mobile unit communication apparatus is disclosed which comprises: an antenna for receiving L FRQ bands of M radio wave SIGs modulated by N modulating methods, M>L, M>N, N≥L; a...
6163222 Buffer amplifier with frequency selective mechanism  
A buffer amplifier to be connected to an oscillator for outputting an oscillation signal, comprising an amplifier circuit for amplifying the level of the oscillation signal and frequency selective...
6151488 Multi-tuner receiver for concurrent reception of mutually different signals  
In a receiver, two tuners (TUN1,TUN2) provide concurrent reception of mutually different signals. The two tuners are merged into one module (MOD). This may give rise to mutual interference....
6134452 Multiple band mixer with common local oscillator  
A multiple band mixer (204) includes at least one transistor element (313, 324, 400). A single local oscillator provides a signal to one terminal of the at least one transistor element. The...
6125269 TV FM receiver for multimedia applications  
A receiver for receiving both first-type reception signals, for example TV signals, and second-type reception signals, for example, FM-radio signals. The receiver may be used in multimedia...
6094564 Mobile communication apparatus operable in different formats and pairing I-F band pass filter type with I-F amplifier characteristics  
A radio communication apparatus is designed for a plurality of different radio communication formats, one of which can be selected. The radio communication apparatus includes a fixed-gain IF...
6085075 Communication system, a communication device and a frequency synthesizer  
A radio device has an antenna for receiving a radio frequency signal, and a radio frequency mixer for down-converting the received radio frequency signal to an intermediate frequency signal. The...
6075996 Intermediate frequency selecting device for use in dual band cellular telephone and method thereof  
A dual band cellular telephone includes an antenna, a power amplifier, RF transmission and reception chains, first and second local oscillators, and IF transmission and reception chains. In order...
6064866 Switchable bandpass filter for a multiband tuner  
To achieve a high passband attenuation, a switchable bandpass filter for a multiband tuner, includes at least a capacitance diode for frequency-tuning of at least a resonant circuit of the bandpass...
6029052 Multiple-mode direct conversion receiver  
A multiple-mode receiver incorporating direct conversion (processing received signals using intermediate frequencies within the same frequency range as the received signal bandwidth) rather than...
6014547 System for enhancing the performance of a CATV settop terminal  
A system for use with a CATV settop terminal measures the input RF carrier signal power level at several frequencies within the CATV RF input bandwidth upon system power-up. The system utilizes...
5995815 Multiple band receiver  
The present invention relates to a multiple band receiver comprised in a mobile terminal. The receiver is able to receive radio signals in an upper frequency band (FB U ) and a lower frequency band...
5995814 Single-stage dual-band low-noise amplifier for use in a wireless communication system receiver  
A low-noise amplifier capable of operation in two or more frequency bands of a personal communication services (PCS) receiver or other wireless communication system terminal. An exemplary...
5991597 Converter for a satellite signal receiving antenna  
A converter for a satellite signal receiving antenna, comprising a input terminal for inputting a signal in a frequency band other than the output frequency band of the IF signal converted from the...
5974305 Dual band architectures for mobile stations  
A dual band user terminal (10) includes a controller (18) for outputting a BAND signal for specifying operation in one of a first frequency band or a second, higher frequency band; a single...
Matches 1 - 50 out of 194 1 2 3 4 >