http://www.freshpatents.com/Electrical-audio-signal-processing-systems-and-devices-dtnewntc381.php USPTO Class 381 - Electrical audio signal processing systems and devices en-us Thu, 24 Jul 2008 15:04:23 -0700 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/Playback-method-and-apparatus-program-and-recording-medium-dt20080717ptan20080170704.php Thu, 24 Jul 2008 15:04:23 -0700 There is provided a playback method for decode-processing and playing back coded audio data which is transmitted with necessary stereo process information required for a stereo process intermittently multiplexed into coded information of a monaural audio signal. The playback method includes a first step of outputting stereo audio signals using... http://www.freshpatents.com/User-selectable-audio-mixing-dt20080717ptan20080170703.php Thu, 24 Jul 2008 15:04:23 -0700 This disclosure describes audio mixing techniques that allow a user to select between two different audio signals for output in a perceptual foreground of a combined output. As an example, the two different signals may comprise a music audio and a phone call audio. In this case, the music audio... http://www.freshpatents.com/Recorder-that-creates-stereophonic-sound-dt20080717ptan20080170705.php Thu, 24 Jul 2008 15:04:23 -0700 A recorder (10) for recording a scene (12) includes an apparatus frame (218), an optical assembly (220), an image system (222), a position assembly (243), an audio system (224), and a compensation system (248). The image system (222) captures an image (252) of the scene (12). The position assembly (243)... http://www.freshpatents.com/Method-and-device-for-removing-echo-in-a-multi-channel-audio-signal-dt20080717ptan20080170706.php Thu, 24 Jul 2008 15:04:23 -0700 Acoustic echo control and noise suppression is an important part of any “handsfree” telecommunication system, such as telephony or audio or video conferencing systems. Bandwidth and computational complexity constraints have prevented that stereo or multi-channel telecommunication systems have been widely applied. The advantages are very low complexity, high robustness, scalability... http://www.freshpatents.com/System-for-suppressing-ambient-noise-in-a-hands-free-device-dt20080717ptan20080170708.php Thu, 24 Jul 2008 15:04:23 -0700 In order to suppress as much noise as possible in a hands-free device in a motor vehicle, for example, two microphones (M1, M2) are spaced a certain distance apart, the output signals (MS1, MS2) of which are added in an adder (AD) and subtracted in a subtracter (SU). The sum... http://www.freshpatents.com/Sound-device-dt20080717ptan20080170707.php Thu, 24 Jul 2008 15:04:23 -0700 A sound device includes an input terminal for electronic signal input; a line out terminal adapted to output electronic signals input on the input terminal to an external area; a delay arrangement adapted to delay electronic signals input on the input terminal for a certain time; a main output arrangement... http://www.freshpatents.com/Headphone-driver-with-improved-frequency-response-dt20080717ptan20080170710.php Thu, 24 Jul 2008 15:04:23 -0700 A preferred embodiment according to the present invention includes a headphone with improved frequency response. More specifically, the headphone includes a driver having an elongated port (e.g., a cylinder, tube, cube, or any shaped protrusion having a passage through it) that changes the acoustic frequency response of the driver. Thus,... http://www.freshpatents.com/Sound-transmitting-device-dt20080717ptan20080170709.php Thu, 24 Jul 2008 15:04:23 -0700 The present invention includes a sound transmitting device configured to fit in an ear canal wherein the device includes a housing and a removable plate attached thereto. In at least one embodiment, the removable plate includes a notch therein that is configured to receive a fingernail, for example, and facilitate... http://www.freshpatents.com/Audio-broadcast-system-for-elevator-dt20080717ptan20080170713.php Thu, 24 Jul 2008 15:04:23 -0700 When an elevator passenger M1 gets on a cage 6, an audio broadcasting controller 2 in an elevator controlling device removes and outputs audio data of automatic audio guidance information from an audio data storage 3. The audio data is transmitted to a magnetic induction amplifier 10 as well as... http://www.freshpatents.com/Parametric-representation-of-spatial-audio-dt20080717ptan20080170711.php Thu, 24 Jul 2008 15:04:23 -0700 In summary, this application describes a psycho-acoustically motivated, parametric description of the spatial attributes of multichannel audio signals. This parametric description allows strong bitrate reductions in audio coders, since only one monaural signal has to be transmitted, combined with (quantized) parameters which describe the spatial properties of the signal. The... http://www.freshpatents.com/Sound-amplification-system-dt20080717ptan20080170712.php Thu, 24 Jul 2008 15:04:23 -0700 A classroom sound amplification system adapted for providing information aiding at diagnosing possible erroneous or inappropriate conditions or configurations of the system is disclosed. The system comprises a microphone device converting a voice to a sound signal and connecting to a sound processing device processing the sound signal and generating... http://www.freshpatents.com/Sound-transmitting-device-dt20080717ptan20080170714.php Thu, 24 Jul 2008 15:04:23 -0700 A sound transmitting device configured to fit within an ear canal, such as a hearing aid or a monitor, for example, having first and second portions which are relatively movable with respect to each other. As a result of these relatively moving portions, the device can better accommodate changes in... http://www.freshpatents.com/Broadside-small-array-microphone-beamforming-unit-dt20080717ptan20080170715.php Thu, 24 Jul 2008 15:04:23 -0700 A broadside small array microphone beamforming unit comprises a first omni-directional microphone to generate a signal X1(t), a second omni-directional microphone to generate a signal X2(t), a first delay unit delaying the signal X1(t) to generate a signal X1(t−T), a second delay unit delaying the signal X2(t) to generate a... http://www.freshpatents.com/Energy-based-sound-source-localization-and-gain-normalization-dt20080717ptan20080170717.php Thu, 24 Jul 2008 15:04:23 -0700 An energy based technique to estimate the positions of people speaking from an ad hoc network of microphones. The present technique does not require accurate synchronization of the microphones. In addition, a technique to normalize the gains of the microphones based on people's speech is presented, which allows aggregation of... http://www.freshpatents.com/Method-to-generate-an-output-audio-signal-from-two-or-more-input-audio-signals-dt20080717ptan20080170718.php Thu, 24 Jul 2008 15:04:23 -0700 compute the output signal by subtracting from the reference signal the other input signals multiplied by the corresponding adjusted gain factors adjust the gain factors using a limiting function for each of the other input signals... http://www.freshpatents.com/Small-array-microphone-apparatus-and-beam-forming-method-thereof-dt20080717ptan20080170716.php Thu, 24 Jul 2008 15:04:23 -0700 The invention provides a beam forming method for a small array microphone apparatus to generate cone beam pattern by processing a combined bi-directional beam pattern of two virtual bi-directional microphones formed through at least three omni-directional microphones arranged in an L-shape. The invention also provides a small array microphone apparatus... http://www.freshpatents.com/Signal-processing-apparatus-dt20080717ptan20080170719.php Thu, 24 Jul 2008 15:04:23 -0700 A signal processing apparatus includes first and second extracting units extracting frequency components having a first frequency band and a second frequency band, respectively, from an input audio signal, a first-harmonic-component generating unit generating a first-harmonic-component signal including a frequency component whose frequency is N1 times that of the frequency... http://www.freshpatents.com/Amplifier-apparatus-and-method-dt20080717ptan20080170720.php Thu, 24 Jul 2008 15:04:23 -0700 An amplifier start-up apparatus for reducing transient signals in an audio circuit including a reference voltage generator circuit for generating a reference voltage. The reference voltage generator circuit includes a capacitor for maintaining the reference voltage at a desired level. The amplifier start-up apparatus includes a charging control circuit for... http://www.freshpatents.com/Audio-enhancement-method-and-system-dt20080717ptan20080170721.php Thu, 24 Jul 2008 15:04:23 -0700 A method for transforming an audio signal and a system employing that method is disclosed. The method proceeds by extracting from the signal components that fall within a stop band, for example, using one or more low-pass filters. Then, a set of one or more harmonics of the extracted components... http://www.freshpatents.com/Sound-device-dt20080717ptan20080170722.php Thu, 24 Jul 2008 15:04:23 -0700 A sound device is provided with an input terminal for electronic signal input; a low pass filter adapted to filter electronic signals input to the input terminal and to output low frequency range electronic signals, a switch arrangement adapted to switch between full range mode and sub woofer mode, a... http://www.freshpatents.com/Audio-reproducing-apparatus-and-method-and-computer-program-dt20080717ptan20080170723.php Thu, 24 Jul 2008 15:04:23 -0700 An audio reproducing device (100) includes: (i) signal level detection means (102) for detecting a signal level of an audio signal; (ii) sound pressure adjusting means (104) for changing the sound pressure level indicating the amplification ratio of the audio signal; (iii) frequency characteristic correction means (106) for correcting the... http://www.freshpatents.com/Vocal-monitor-dt20080717ptan20080170724.php Thu, 24 Jul 2008 15:04:23 -0700 A vocal monitor comprises a “J”-shaped base portion. The base portion comprises a bottom surface having a mouth region and an ear region. First and second sides extend in a first direction from the bottom surface. First and second ends extend in the first direction from the bottom surface and... http://www.freshpatents.com/Sound-outputting-apparatus-sound-outputting-method-sound-outputting-system-and-sound-output-processing-program-dt20080717ptan20080170725.php Thu, 24 Jul 2008 15:04:23 -0700 Disclosed herein is a sound outputting apparatus, including: an electro-acoustic conversion section disposed in a housing and configured to acoustically reproduce a first sound signal; a sound collection section configured to collect sound outside said housing and output a second sound signal; a surrounding noise evaluation section configured to evaluate... http://www.freshpatents.com/Intelligent-solo-mute-switching-dt20080717ptan20080170726.php Thu, 24 Jul 2008 15:04:23 -0700 An intelligent solo-mute switching system for an audio signal processing device having a plurality of channels. A plurality of multi-throw momentary switches are monitored by a switch interface to detect at least three switch events. A channel state controller responds to the at least three switch events detected by the... http://www.freshpatents.com/Acoustic-substrate-dt20080717ptan20080170727.php Thu, 24 Jul 2008 15:04:23 -0700 A micromachined microphone or speaker embedded within, or positioned on top of, a substrate suitable for carrying microelectronic chips and components. The acoustic element converts sound energy into electrical energy which is then amplified by electronic components positioned on the surface of the substrate. Alternatively, the acoustic element may be... http://www.freshpatents.com/Processing-microphone-generated-signals-to-generate-surround-sound-dt20080717ptan20080170728.php Thu, 24 Jul 2008 15:04:23 -0700 generating the output audio channels, y1, . . . , yM, by using the microphone generated audio channels, x1, x2, directions, and compensation gains determine compensation gains of sound components related to the microphone characteristics determine... http://www.freshpatents.com/Pointing-element-enhanced-speaker-system-dt20080717ptan20080170729.php Thu, 24 Jul 2008 15:04:23 -0700 A pointing element enhanced speaker system addresses the need for consistent sound. Despite wide variations in the design and architecture of different venues, the system helps performers ensure that they deliver the desired sound for their audiences. Performers and their technicians, though faced with grueling schedules that impose severe time... http://www.freshpatents.com/Tracking-system-using-audio-signals-below-threshold-dt20080717ptan20080170730.php Thu, 24 Jul 2008 15:04:23 -0700 A tracking system may determine the orientation or position of a movable object. The tracking system includes a signal generator that generates a non-audible detection signal in an audible frequency range. A transmitting device transmits the detection signal to a detection device. The transmitting device or the detection device may... http://www.freshpatents.com/Hearing-aid-momentary-switch-or-joystick-as-a-multifunction-acoustic-control-dt20080717ptan20080170731.php Thu, 24 Jul 2008 15:04:23 -0700 A hearing instrument uses a single momentary switch or joystick to toggle programmable functions or value for each function. The length of the user actuation, short or long, can determine the action for internal circuit programming. The function change can be used in a circular or cyclical way, and the... http://www.freshpatents.com/Hearing-aid-with-increased-acoustic-bandwidth-dt20080717ptan20080170732.php Thu, 24 Jul 2008 15:04:23 -0700 A hearing aid (21) is devised, comprising a first output converter (26), a second output converter (27), a first acoustic output transducer (34) and at least a second output transducer (35). The first output converter (26) and the first output transducer (34) are configured to reproduce the high frequencies of... http://www.freshpatents.com/Charging-device-for-a-hearing-aid-hearing-aid-and-hearing-aid-remote-control-dt20080717ptan20080170733.php Thu, 24 Jul 2008 15:04:23 -0700 An induction charging method is provided, with a charging device being equipped with a charging capacitor comprising two opposing electrodes or plates. The device to be charged, a hearing aid or a hearing aid remote control, is introduced between the two electrodes into the electrical field of the capacitor. For... http://www.freshpatents.com/Sound-transmitting-device-dt20080717ptan20080170734.php Thu, 24 Jul 2008 15:04:23 -0700 A sound transmitting device configured to fit within an ear canal, such as a hearing aid or a monitor, for example, having first and second portions which are relatively movable with respect to each other. As a result of these relatively moving portions, the device can better accommodate changes in... http://www.freshpatents.com/Rigging-system-for-line-array-speakers-dt20080717ptan20080170735.php Thu, 24 Jul 2008 15:04:23 -0700 This invention provides a system for enabling the assembly and suspension of a plurality of loudspeakers in a line allay where the splay angle between the adjacent speakers can be adjusted and rigidly maintained. The line array system utilizes rigging frames that allow for the coupling and supporting of the... http://www.freshpatents.com/Sound-broadcasting-mechanism-and-electronic-device-using-the-same-dt20080717ptan20080170736.php Thu, 24 Jul 2008 15:04:23 -0700 A sound broadcasting mechanism and an electronic device using the same are provided. The sound broadcasting mechanism includes a sound box, a sound broadcasting element and a sound enhancing element. The sound broadcasting element is disposed at the surface of the sound box to generate a sound signal. The sound... http://www.freshpatents.com/Loudspeaker-system-dt20080717ptan20080170737.php Thu, 24 Jul 2008 15:04:23 -0700 A loudspeaker system according to the present invention comprises a cabinet, a speaker unit mounted in the cabinet, and a powdery gas absorption material which is disposed in an internal space of the cabinet and physically absorbs gas being present in the internal space of the cabinet. An average particle... http://www.freshpatents.com/Adjustable-earphones-for-portable-devices-dt20080717ptan20080170738.php Thu, 24 Jul 2008 15:04:23 -0700 An earphone arrangement may be provided with at least one speaker arrangement including an earpiece adapted to be attached to the user's ear, and a speaker arranged in the earpiece so that the speaker faces the entrance of the ear canal of a user when the earpiece is operatively attached... http://www.freshpatents.com/Dipole-antenna-device-earphone-antenna-device-and-wireless-communication-terminal-device-connected-to-the-device-dt20080717ptan20080170739.php Thu, 24 Jul 2008 15:04:23 -0700 An earphone antenna device operable to be connected with a wireless communication terminal device includes: earphone cables, connected with earphone sections, respectively, for supplying audio signals; an audio cable one end of which is connected with the wireless communication terminal device and the other end is connected with the earphone... http://www.freshpatents.com/Self-contained-dual-earbud-or-earphone-system-and-uses-thereof-dt20080717ptan20080170740.php Thu, 24 Jul 2008 15:04:23 -0700 The present invention provides an earphone system having a first primary earphone having a portion for contacting a portion of an ear of a user; a first secondary earphone releasably connected to the primary earphone to define a first earphone assembly, the first secondary earphone having a portion for contacting... http://www.freshpatents.com/Convenient-electronic-sound-producing-device-dt20080717ptan20080170741.php Thu, 24 Jul 2008 15:04:23 -0700 A convenient electronic sound producing device is an electronic sound producing device that is physically configured to be easy to use in the field. A control module faces the use while the sound is projected away from the user. A pistol grip can be used to ease holding and using... http://www.freshpatents.com/Apparatus-and-method-using-capacitive-detection-with-inherent-self-calibration-dt20080717ptan20080170742.php Thu, 24 Jul 2008 15:04:23 -0700 The illustrated embodiment of the invention includes a capacitive detection method in a MEMS resonator comprising the steps of: vibrating a resonator with a drive signal; sensing vibration of the resonator by detecting a plurality of sidebands of an electromechanical amplitude modulation signal in a capacitive detector; and extracting amplitude... http://www.freshpatents.com/Loudspeaker-having-an-inner-lead-wire-system-and-related-method-of-protecting-the-lead-wires-dt20080717ptan20080170743.php Thu, 24 Jul 2008 15:04:23 -0700 A loudspeaker for generating sound from an electrical current provided by an external source may include an adapter and/or a guide for supporting, directing and routing lead wires carrying the electrical current from the external source. The lead wires may be routed through a guide supported by a pole assembly... http://www.freshpatents.com/Dual-coil-dual-gap-electromagnetic-transducer-with-multiple-channel-amplifier-dt20080717ptan20080170744.php Thu, 24 Jul 2008 15:04:23 -0700 A dual-coil, dual magnetic gap electromagnetic transducer is provided where each voice coil is wired to include separate leads so that each individual voice coil may be driven by a separate amplifier or by a separate bridged amplifier. Signal processing may further be utilized to increase the output of the... http://www.freshpatents.com/Microspeaker-and-method-of-designing-the-same-dt20080717ptan20080170745.php Thu, 24 Jul 2008 15:04:23 -0700 Provided are a microspeaker and a method of designing the same. The microspeaker includes a first permanent magnet and a second permanent magnet disposed on the first permanent magnet with a predetermined gap therebetween, the first and second permanent magnets having opposite magnetization directions; a third permanent magnet and a...