Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8170217 | Audio signal processing apparatus An audio signal processing apparatus is provided. The audio signal processing apparatus comprises a clock generator, a processing module, an amplifying module and an output module. The clock generator is used for generating a clock signal. The processing module is c... | 05/01/2012 |
| 8160258 | Apparatus and method for encoding/decoding signal An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes extracting a down-mix signal and down-mix identification information from an input bitstream, determining, based on the down-mix identification informatio... | 04/17/2012 |
| 8050412 | Scaling adjustment to enhance stereo separation A demodulator (10) converts television signals to video baseband signals and audio baseband signals including stereo signals representing a right channel signal value and a left channel signal value. A DSP (60) recursively finds a preferred coefficient... | 11/01/2011 |
| 8045717 | Stereo decoder and method for processing pilot signal A stereo decoder and a method therefor are provided. The stereo decoder receives a MPX signal from an FM demodulator, and comprises a first auto-calibration circuit, a band-pass filter, a second auto-calibration circuit, a slicer and a PLL circuit. The first auto-ca... | 10/25/2011 |
| 8009835 | Frequency modulation-type transmitting apparatus A front-end processing circuit applies predetermined processing to an input signal and outputs a processed signal. A frequency modulation circuit applies frequency modulation to the output signal of the front-end processing circuit and outputs a processed signal. Th... | 08/30/2011 |
| 7916872 | Integrated short range RDS FM transmitter A low-power, software based modulator that is used to transfer text data from an auxiliary audio device to an FM radio receiver includes a processor that receives the text data to be transmitted to the FM receiver, processes the data as an RDS signal or converts the... | 03/29/2011 |
| 7894609 | Stereo signal processing apparatus Disclosed is a stereo signal processing apparatus, in particular for a digital BTSC television decoder, comprising a sub-channel signal processing section which comprises an input for inputting an input sub-channel signal, a DBX expanding means and an output for out... | 02/22/2011 |
| 7853021 | Decoding apparatus and decoding method for multiple audio standards The invention discloses a decoding apparatus for decoding an analog audio signal. The decoding apparatus includes an RF tuner, an analog to digital (A/D) converter, a digital down converter, and a programmable digital signal processor (DSP). The RF tuner is used for... | 12/14/2010 |
| 7822210 | Configurable recursive digital filter for processing television audio signals A television audio signal encoder includes a device that sums a left channel audio signal and a right channel audio signal to produce a sum signal. The device also subtracts one of the left and right audio signals from the other to produce a difference signal. The e... | 10/26/2010 |
| 7801311 | Radio receiver with stereo decoder and method for use therewith A stereo decoder includes a first digital filter for producing a first filtered composite audio signal and a second digital filter for producing a second filtered composite audio signal. A sum/difference network produces a left channel signal and a right channel sig... | 09/21/2010 |
| 7787630 | FM stereo decoder incorporating Costas loop pilot to stereo component phase correction A novel system and method for correcting the residual phase offset between a recovered pilot signal and the received stereo signal. The invention uses a Costas loop as an auxiliary loop in addition to the pilot recovery phase locked loop (PLL) to lock onto the stere... | 08/31/2010 |
| 7715566 | Apparatus and method of automatically compensating a difference between audio signals of an analog broadcast and a digital broadcast An apparatus and a method of automatically compensating a difference between audio signals of an analog broadcast and a digital broadcast depending on a difference of a modulation degree of an analog audio signal and a digital audio signal. The apparatus includes an... | 05/11/2010 |
| 7428308 | Transmitting and reproducing stereophonic audio signals Apparatus and method for transmitting and reproducing stereophonic audio signals are disclosed. The method comprises splitting first and second channels into two frequency bands, combining the lower frequency band signals of the two channels, and transmitting the co... | 09/23/2008 |
| 7406302 | Digital FM stereo receiver architecture Systems and techniques for digital processing of FM stereo signals are described. A carrier signal such as a 38 kHz carrier may be recovered and used to process a difference signal such as a left minus right signal. The left minus right signal and a left plus right ... | 07/29/2008 |
| 7403624 | BTSC encoder and integrated circuit A BTSC encoder includes dual channel ADC, sync separator, audio processor, filtering device, and a composite audio signal generating device. The filtering device includes a first filter for providing a filtered L+R signal, and a second filter for providing at least ... | 07/22/2008 |
| 7400859 | Combined modulator and MP3 player having socket power supply adapter and/or universal connector A combined digital audio file player and modulator. In one embodiment, the invention is an apparatus comprising: an elongate housing having a distal end and a proximal end; a socket power adapter located at a distal end of the elongate housing; an interface port in ... | 07/15/2008 |
| 7392195 | Lossless multi-channel audio codec A lossless audio codec segments audio data within each frame to improve compression performance subject to a constraint that each segment must be fully decodable and less than a maximum size. For each frame, the codec selects the segment duration and coding paramete... | 06/24/2008 |
| 7386004 | Digital broadcast system A broadcasting system which can monitor all input devices for their operating conditions, the broadcasting system includes input devices 11-1M for receiving sound, output devices 31-3N for broad... | 06/10/2008 |
| 7376476 | Methods for changing time intervals of the occurrence of audio information from local and remote sites A method of processing audio information for broadcast to an audience can include changing first audio information from occurring in a first time interval to occurring in a second time interval to provide time-changed audio information. The time-changed audio inform... | 05/20/2008 |
| 7373120 | Mobile communication terminal A mobile communication terminal which includes a plurality of lights, apparatus for controlling the activation of the lights, apparatus for storing a number of sequences of activation of the lights, and apparatus for assigning one of the stored sequences of the acti... | 05/13/2008 |
| 7366488 | Digital carrier-recovery scheme for FM stereo detection Systems and techniques for digital processing of FM signals. Digital processing may include recovering a carrier signal at a second frequency based on a reference signal at a first frequency. ... | 04/29/2008 |
| 7359528 | Monitoring of video or audio based on in-band and out-of-band data The presently claimed invention relates generally to monitoring and/or filtering video or audio data. In one implementation a method is provided including: obtaining data representing video or audio; analyzing the data representing video or audio for an in-band sign... | 04/15/2008 |
| 7355963 | Tone allocation in multipoint-to-point communication using orthgonal frequency division multiplexing Systems for tone allocation are provided. In one embodiment, a system comprises: a plurality of remote units and a host including a demodulator. Each remote transmits an upstream OFDM signal using a multiple access scheme to the host using an OFDM waveform. The host... | 04/08/2008 |
| 7346173 | Method and circuit assemblage for influencing the treble reproduction of an audio signal A method for influencing, e.g., for decreasing, the treble reproduction of an audio signal for reproduction obtained from a received signal, the received field strength and reception quality of the received signal being evaluated and, as a function thereof, the tran... | 03/18/2008 |
| 7342872 | Differential OFDM using multiple receiver antennas Systems and methods for optimally receiving differential encoded OFDM signals via multiple antennas. These techniques may exploit spatial diversity without knowledge of channel characteristics. Further systems and methods are provided for exploiting frequency divers... | 03/11/2008 |
| 7343015 | Method and apparatus for high fidelity wireless stereophonic transmission utilizing dual frequency carriers A method and system is disclosed for transmitting two related channels of signals through the air. A first channel of signals is modulated with a first carrier frequency, and a second channel of signals is modulated with a second carrier frequency. The modulated fir... | 03/11/2008 |
| 7340103 | Adaptive entropy encoding/decoding for screen capture content Adaptive entropy encoding and decoding techniques are described. For example, a screen capture encoder and decoder perform adaptive entropy encoding and decoding of palettized screen capture content in screen capture video. The encoder selects between different entr... | 03/04/2008 |
| 7339524 | Analog decorrelation of ranging signals In a local positioning system, a receiver is adapted for receiving signals from a land-based transmitter. The receiver includes an analog decorrelator for decorrelating the transmitted spread spectrum signals. A down converter connected with an antenna may be spaced... | 03/04/2008 |
| 7334735 | Card for interaction with a computer A smart card comprising: a memory for storing information; at least one transmitting or receiving antenna; and a low frequency circuit, for handling information associated with said antenna and said memory, which information is modulated at a modulation frequency of... | 02/26/2008 |
| 7304594 | Transmitting and receiving device and transmitting device and receiving device According to one aspect of this invention, there is provided a transmitting and receiving device including a transmitting device having a pulse width modulation encoder which generates a pulse width signal having a pulse width corresponding to the binary digital sig... | 12/04/2007 |
| 7301440 | Power line communication system and method The present invention provides a device for providing communications through power lines comprised of multiple conductors by transmitting the data signals through a plurality of the conductors. One embodiment of the present invention may be comprised of a transmit c... | 11/27/2007 |
| 7295809 | Portable audio playback device with bass enhancement Wirelessly linking a portable audio device to an external audio system permits the external audio system to generate audible signals that enhance local playback of audio by the portable device. For example, the portable device wirelessly transmits lower frequency co... | 11/13/2007 |
| 7289633 | System and method for integral transference of acoustical events A sound system for capturing and reproducing sounds produced by a plurality of sound sources. The system comprises a device for receiving sounds produced by the plurality of sound sources and converting the separately received sounds to a plurality of separate audio... | 10/30/2007 |
| 7272556 | Scalable and embedded codec for speech and audio signals A system and method for processing of audio and speech signals is disclosed, which provide compatibility over a range of communication devices operating at different sampling frequencies and/or bit rates. The analyzer of the system divides the input signal in differ... | 09/18/2007 |
| 7254238 | Method and circuit for headset listening of an audio recording The invention concerns a circuit for adapting the signals from different channels (L, R) delivered by an audio reproduction system (10) in conditions specific to headset listening. It comprises: means (14a) for producing a left-channel intermedi... | 08/07/2007 |
| 7253753 | Method and apparatus of performing sample rate conversion of a multi-channel audio signal A method and apparatus are disclosed for performing sampling rate conversion of an audio signal from a first sampling rate to any of a plurality of higher sampling rates using a single set of low-pass filter coefficients. Sampling rate conversion is accomplished by ... | 08/07/2007 |
| 7235748 | Video game controller and game apparatus The game apparatus is provided with the cylindrical portion rotating with the axis on the side face of the base portion of the master control lever. Two projecting parts are sticking out from the columnar surface of the cylindrical portion. In addition, two leaf swi... | 06/26/2007 |
| 7225282 | Method and apparatus for a two-wire serial command bus interface A method for bi-directional transmission of data between a source and a sink over a two-wire interface includes re-mapping a data signal and a clock signal from a first local bus on the source into a different protocol signal. Transmitting the different protocol sig... | 05/29/2007 |
| 7218790 | Adaptive entropy encoding/decoding for screen capture content Adaptive entropy encoding and decoding techniques are described. For example, a screen capture encoder and decoder perform adaptive entropy encoding and decoding of palettized screen capture content in screen capture video. The encoder selects between different entr... | 05/15/2007 |
| 7206337 | Bit stream conditioning circuit having output pre-emphasis A high-speed bit stream interface module interfaces a high-speed communication media to a communication Application Specific Integrated Circuit (ASIC) via a Printed Circuit Board (PCB). The high-speed bit stream interface includes a line side interface, a board side... | 04/17/2007 |
