Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7414676 | Integrated programmable tuner An integrated tuner is programmable to optimize its components for either analog signal reception or digital signal reception. Power to the components is increased for analog operation and decreased for digital operation. The tuner also includes a selectable and int... | 08/19/2008 |
| 7403756 | Highly-integrated MEMS-based miniaturized transceiver The present invention is directed to a highly-integrated MEMS-based miniaturized transceiver. The transceiver utilizes a low band front-end to direct sample low band signals and a high band front-end to translate high band signals that cannot be directly sampled to ... | 07/22/2008 |
| 7366487 | Receiving band switching circuit with reduced signal loss upon switching receiving band A receiving band switching circuit includes a first high frequency circuit through which a first frequency band signal passes, a second high frequency circuit through which a second frequency band signal passes, and a third high frequency circuit that is provided in... | 04/29/2008 |
| 7349034 | Television tuner using integrated circuit An integrated circuit is provided with a power supply terminal and an external circuit connecting terminal which is DC insulated from an internal high-frequency circuit and is connected to an external circuit. An interface is provided with an address identifying cir... | 03/25/2008 |
| 7324787 | Method of ramping up output level of power amplifier of radio communication system, communication semiconductor integrated circuit, and radio communication system In a radio communication system having a phase control loop for phase modulation and an amplitude control loop for amplitude modulation and being capable of time divisional transmission and reception under a predetermined time management, when transmission in a firs... | 01/29/2008 |
| 7319849 | 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 input path propagate a first single-ended input signal and a second si... | 01/15/2008 |
| 7209726 | Switch in UHF bandpass By using ICs with combined inputs for the VHF-high bandpass circuit and the UHF bandpass circuit, undesirable resonances occur which are caused by one of the tuned circuits. The problem is solved by providing a switching means for decoupling the UHF bandpass circuit... | 04/24/2007 |
| 7145394 | High frequency power amplifier module, and wireless communication system A high frequency power amplifier module of a multistage amplifier construction comprising: an input terminal; an output terminal; a control terminal; and a mode switching terminal. The first amplification stage includes a dual gate FET, and a bias voltage according ... | 12/05/2006 |
| 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 |
| 7113744 | Adaptive radio transceiver with a power amplifier An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged ... | 09/26/2006 |
| 7088984 | Electronic tuner An electronic tuner of the present invention is arranged such that between an input part of the amplifying circuit and the ground serially connected are a coil and a diode, and a capacitor is connected between the ground and a connecting part between the coil and th... | 08/08/2006 |
| 7079815 | Monolithic microwave integrated circuit transceiver A transceiver having a transmit/receive switch. The transmit/receive switch includes: a common port adapted for coupling to an antenna element; a transmit port; a receive port and a matched port. The transceiver includes a second switch. The second switch has: a com... | 07/18/2006 |
| 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 |
| 7050772 | Circuit arrangement for switching a mobile radio transmitter between two modulation modes A circuit is provided for regulating operation of a transmitter of a mobile communication terminal, which runs in the EDGE and GMSK modulation modes. The inventive circuit includes a power amplifier supplying an output signal for an antenna of the mobile communicati... | 05/23/2006 |
| 6993356 | Frequency generating system for a mobile radio dual-band transceiver In a frequency generating system, a triple/single local-oscillator concept for receiving and transmitting in the lower frequency band, transmitting in the upper frequency band, and receiving in the upper frequency band is used for a dual-band transceiver so that a s... | 01/31/2006 |
| 6937846 | Pin diode circuit arrangement A PIN diode switching system is provided, particularly for the transmission stage of a mobile radio telephone, in which, when the PIN diode switching system is in a reverse-bias state, a PIN diode is isolated from its power supply via a high-impedance switch and is,... | 08/30/2005 |
| 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 |
| 6864925 | Television tuner having less distortion A television tuner includes an input tuning circuit and an interstage tuning circuit. Each of the tuning circuits comprises a band-switching tuning circuit having a tuning inductor and a switching diode for switching an inductance of the inductor. A power supply vol... | 03/08/2005 |
| 6864924 | Television tuner input circuit having satisfactory selection properties at high band reception The present invention provides a television tuner input circuit having satisfactory selection properties free from influence by half of signal frequencies to be received. The television tuner input circuit of the present invention has a tuning circuit and a high pas... | 03/08/2005 |
| 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 input signals and an AM input circuit for receiving amplitude-modula... | 09/28/2004 |
| 6704555 | Apparatus and method for calibrating local oscillation frequency in wireless communications According to a disclosed embodiment, a receiver comprising a digital rotator in combination with a frequency error discriminator in a digital automatic frequency control loop is used to arrive at accurate digital values used to calibrate a local oscillati... | 03/09/2004 |
| 6317168 | Digital TV receiver for performing channel selection using stored channel information and method performing the same Disclosed is a digital TV receiver performing a channel selection using stored channel information and a method for selecting a channel. With respect to a broadcasting signal which is not being currently viewed, the receiver activated at a predetermined p... | 11/13/2001 |
| 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, 108) feed into a single broadband input (124) of a direct ... | 06/12/2001 |
| 5268712 | Apparatus and method for search tuning of satellite television sound carriers Apparatus and method for frequency-tuning the frequency-modulated sound carriers of multichannel sound transmission signals in a satellite television receiver. By utilizing digital signal processing, the audio range of the television satellite channel is ... | 12/07/1993 |
| 5243431 | Audio bandpass filter adaptive to differing television standards A filter equipment comprises a plurality of filters, which are connected in cascade or in parallel. Characteristics of each filter are controlled according to an applied current. Desired characteristics can be realized by a relatively simple circuit confi... | 09/07/1993 |
| 4905306 | Filter switching arrangement for a tuner In a tunable filter including first and second inductors, a varactor diode, and a bandswitching diode connected intermediate the inductors to select the inductor configuration for first and second tuning bands, a capacitor is connected in parallel with th... | 02/27/1990 |
| 4802238 | Radio receiver In a radio receiver which can be switched between at least two waveranges, the coil winding (33) of the oscillator circuit (31) has a further coil winding (36) inductively coupled to it with which a capacitor (37) is arranged in parallel for limiting the ... | 01/31/1989 |
| 4771332 | Tuning apparatus for the VHF band of a television receiver A channel selection circuit selects signals of a desired frequency from television signals. A channel interpretation circuit determines whether or not the signals thus selected are low-band or high-band. When the signals are low-band, a movable contact is... | 09/13/1988 |
| 4326295 | Television tuner circuit A television tuner comprises a VHF tuner section and a UHF tuner section and is configured in the two tuned modes of VHF high band and VHF low band between which the input tuning circuit of the VHF tuner section is switched by a diode in response to a sou... | 04/20/1982 |
| 4115737 | Multi-band tuner A tuner for receiving signals broadcast on two spaced bands, each divided into several channels, has two fixed bandpass filters, one to pass all of the channels in the lower band between the lowest frequency fP of the lowest channel and the hig... | 09/19/1978 |
