Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 8135365 | Phase-locked loop based controller for adjusting an adaptive continuous-time filter A direct conversion radio-frequency (RF) receiver includes a controller and an adaptive continuous-time filter. The adaptive continuous-time filter receives a multiple-bit control signal generated by the controller to adjust a characteristic of the continuous-time f... | 03/13/2012 |
| 8000669 | Automatic beat/tone removal algorithm A system for detecting and removing undesirable noise, such as beats and tones, from radio signals. The system includes a manual oscillator that is a manually tuned by a user to a selected manual frequency from one of a plurality of frequencies. An electronic oscill... | 08/16/2011 |
| 7869780 | Phase-locked loop based controller for adjusting an adaptive continuous-time filter A direct conversion radio-frequency (RF) receiver includes a controller and an adaptive continuous-time filter. The adaptive continuous-time filter receives a multiple-bit control signal generated by the controller to adjust a characteristic of the continuous-time f... | 01/11/2011 |
| 7509105 | Radio frequency excitation arrangement including a limiting circuit Disclosed is a method for limiting the voltage applied to a component in a radio frequency path (RF path) of a radio frequency excitation system. According to the method, a radio frequency signal (RF signal) is tapped at a first random point of the RF path, and ener... | 03/24/2009 |
| 7437128 | Portable interference-generating device for use in CDMA mobile testing A portable interference-generating device for inducing desired frame error characteristics, such as desired frame error patterns and rates, at a mobile unit receiving a carrier signal having at least one data channel having a plurality of data frames. The induced fr... | 10/14/2008 |
| 7412220 | Signal processing Signal processing apparatus produces an audio signal suitable for conveying a psychoacoustic perception of a low frequency audio signal to a listener, the apparatus generates harmonics of the low frequency signal by shaping the waveform of the low frequency signal w... | 08/12/2008 |
| 7395042 | Enhancing signals in a two-way radio system Embodiments of the present invention can be used to enhance signals in a peer-to-peer radio system, such as a two-way radio system. In one embodiment, the invention includes receiving a communications signal on a channel from a remote radio at a radio using a plural... | 07/01/2008 |
| 7386327 | Apparatus and method for controlling noise in a mobile communication terminal An apparatus and method for controlling a volume of comfort noise in a mobile communication terminal. The mobile communication terminal includes a vocoder for detecting a decoding rate of voice data received after establishing a voice call to output a detection sign... | 06/10/2008 |
| 7366491 | Noise cancel circuit A raw signal is delayed in a delay circuit (1) and then supplied to one of the input terminals of a selection circuit (8). The raw signal is also supplied to another delay circuit (2) to be delayed. Subsequently, data of this delayed signal is p... | 04/29/2008 |
| 7317906 | AM radio receiver An AM radio receiver comprises an RF amplifier, a first mixer that converts the RF signal to a first intermediate-frequency signal, a first bandpass filter that band-limits the first intermediate-frequency signal, a second mixer that converts the output from the fir... | 01/08/2008 |
| 7295617 | ADPCM decoder A shift register receives a quantization difference signal separated into a mantissa part and an exponent part and bit-develops the mantissa part. A shift arithmetic operation control circuit bit-shifts the bit-developed mantissa part in accordance with a value of t... | 11/13/2007 |
| 7292833 | Reception system for multisensor antenna The present invention relates to a receiving system for a multi-sensor antenna and comprising: at least one set of channel filters (310j, 710k, 1 . . . N) filtering the signals Xi(t,f) received by t... | 11/06/2007 |
| 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 |
| 7286809 | Method and circuit system for suppressing noise in a signal processing circuit Noise impulses are suppressed in a signal processing circuit by gating an input signal. The gated signal is then smoothed upstream of demodulating the smoothed signal as viewed in a signal flow direction from a signal input to a processed signal output. The signal p... | 10/23/2007 |
| 7266359 | DC interference removal in wireless communications A method for removing direct current (DC) interference from a signal received by a communication receiver is provided that removes both a DC offset signal induced by the communication receiver and transmitter. The method includes removing the estimated DC offset fro... | 09/04/2007 |
| 7248835 | Method for automatically switching a profile of a mobile phone A method for automatically switching a profile of a mobile phone includes measuring a current environmental noise value of ambient noise surrounding the mobile phone. The current environmental noise value is then compared to a predetermined noise value, and a noise ... | 07/24/2007 |
| 7218903 | Squelch detecting circuit The present invention provides a squelch detecting circuit capable of high-speed transfer while using a reduced number of high-speed operating operational amplifiers to reduce power consumption and the cost of parts. Input differential signals inputted to a differen... | 05/15/2007 |
| 7203471 | System and method for selectively utilizing an attenuation device in a two-way radio receiver based on squelch detect and radio signal strength indication (RSSI) A system and method used for controlling an attenuator in a two-way communication device (100, 200) includes the steps of measuring (211) a relative signal strength indication (RSSI) at the input of the two-way communications device. The RSSI measureme... | 04/10/2007 |
| 7197290 | Method for AM band interference suppression via frequency shift Methods are provided for suppressing interference in a motor vehicle radio such as an AM radio from the operating frequency or the harmonics of the operating frequency of a source of time varying signal such as a switching power supply in response to tuning the radi... | 03/27/2007 |
| 7184954 | Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters A speech signal is decoded by a vocoder and the reconstructed speech samples are provided to a decoded frame check unit. The decoded frame check unit examines the energy of the reconstructed speech and compares the energy of the reconstructed speech to a range of ac... | 02/27/2007 |
| 7180933 | Squelch circuitry for high speed high frequency operation A squelch circuit for operating at high speed and at high frequencies includes a squelch input unit, a low swing pre-amplifier and a sampling and decision circuit. The squelch input unit pre-processes the positive and negative signals of an input signal to generate ... | 02/20/2007 |
| 7142834 | Noise removing circuit An object is to provide a noise removing circuit that can be integrally formed on a semiconductor substrate and can improve the accuracy of noise component removal. The noise removing circuit comprises a highpass filter detecting a noise component included in an inp... | 11/28/2006 |
| 7133653 | Receiver and composite component having local oscillator components and mixing circuit integrally formed on semiconductor substrate A receiver and a composite component for preventing noise produced by sneaking of a local oscillation signal. An FM receiver comprises a high-frequency amplifier circuit 11, a mixing circuit 12, a local oscillator 13, intermediate-frequency filt... | 11/07/2006 |
| 7130597 | Receiver having high-frequency amplifier circuit portions integrally formed on a semiconductor substrate A receiver capable of reducing a low-frequency noise generated when a component is integrally formed on a semiconductor substrate by using CMOS process or MOS process. A high-frequency amplifier circuit 11, a mixing circuit 12, a local oscillator 13... | 10/31/2006 |
| 7120409 | High frequency module and radio device using the same The high-frequency module of the present invention is formed of two sections: first high-frequency circuit 5 having a first filter circuit; and second high-frequency circuit 6 having a second filter circuit. At least any one of the two high-frequency c... | 10/10/2006 |
| 7095996 | Wireless communication system, and demodulation method and data rate control method therefor A transmitter and a receiver share a maximum number of transmission bits per symbol as a parameter. The transmitter modulates an encoded and interleaved transmission signal in accordance with a modulation scheme which enables the transmission of one bit or more per ... | 08/22/2006 |
| 7076229 | Circuits with improved power supply rejection Circuit comprising a noise suppressing circuitry (40) having an input (42) for a first voltage (VDD) and an output (43) for providing a supply voltage (VDDfiltered). The circuit further comprises a MOSFET-based switch (41) with a MOSFET (... | 07/11/2006 |
| 7039360 | External noise intrusion prevention device, signal amplifier, protector and antenna plug An external noise intrusion prevention device preventing intrusion of external noise into a central conductor of a trunk cable in an up signal frequency band is provided. A first filter circuit 3 letting a signal in frequencies of 54 MHz or higher pass is pro... | 05/02/2006 |
| 7031696 | Timekeeper with automatic time setting and time setting method for same A timekeeper equipped with a radio reception device capable of decoding Radio Data System (RDS) information and including a time base, a display for displaying time data supplied by the time base, and an adjustment control for correcting the time data. The radio rec... | 04/18/2006 |
| 7027784 | Method and apparatus for detecting power levels of varying envelope signals A method for measuring a power level of a radio frequency signal in a radio frequency transmitter includes routing a portion of the radio frequency signal to a detector, detecting a signal envelope of the radio frequency signal with the detector, routing the detecte... | 04/11/2006 |
| 7010131 | Quasi-differential power amplifier and method A quasi-differential power amplifier and method are disclosed that enhance drive capability and dynamic range by driving a right, left and common terminals with a right channel output signal, a left channel output signal, and a common mode output signal that are eac... | 03/07/2006 |
| 7003272 | Radio apparatus with adjustable reception quality A radio apparatus (95), particularly for mobile radio, which makes it possible to adjust the signal reception in a predeterminably optimized way is proposed. The radio apparatus (95) includes a receiver part (1) and an evaluation unit (5)... | 02/21/2006 |
| 6993309 | Noise removal apparatus and an FM receiver A noise removal unit mounted on a car radio according to the invention removes multipath noise and pulse noise from FM demodulated signals. At this time, the noise removal unit removes all of the multipath noise. Also, in case where the generation density of noise i... | 01/31/2006 |
| 6990355 | Flexible printed circuit board and foldable cell phone terminal A flexible printed circuit board has first and second connection portions 18 and 19 where contacts are exposed and first and second path portions 16 and 17 where conductor patterns 11 are arranged that connect the contacts 11 | 01/24/2006 |
| 6961551 | Dual speed squelch circuit and method Squelch circuit and method useful in frequency-scanned radio receivers are provided. Generally, the squelch circuit includes an audio-removal filter coupled to receive an audio signal. The passband of the audio-removal filter is selected sufficiently high relative t... | 11/01/2005 |
| 6925114 | Weak signal processing based on impulse noise blanking An improved noise reduction system (20) is provided for a radio frequency audio processor having one or more weak signal processing components for generating one or more corresponding control values (36a, 36b) for controlling chara... | 08/02/2005 |
| 6917318 | Analog to digital converter that services voice communications An Analog-to-Digital-Converter (ADC) converts an analog signal to digital data. The ADC includes a modulator, a decimation filter, and a time dither clock reduction circuit. The modulator receives the analog signal and a feedback signal and, based there upon, produc... | 07/12/2005 |
| 6914522 | Clamping circuit for an RF receiver system A low power consumption RF receiver system that is adapted for receiving and shaping transmitted digital data signals into a digital data stream for processing by a microprocessor is provided. The receiver system comprises an integrated circuit, which includes a dat... | 07/05/2005 |
| 6906684 | Controlling a telescopic antenna mast A receiver receives an electromagnetic signal via an antenna mounted on an antenna mast. A signal evaluator determines or measures a signal quality level associated with the received electromagnetic signal. The signal quality compares the determined signal quality l... | 06/14/2005 |
| 6859645 | Squelch detection circuit Disclosed is a transmission envelope detector referred to a squelch detection circuit for effectively detecting an element of transmission data in a high speed serial data transmission system. The squelch detection circuit of the invention includes a differential in... | 02/22/2005 |
