Abstract: A television system (2) is provided of the type including a broadcast data receiver (BDR) (4) for receiving data transmitted from a broadcaster at a remote location via cable, satellite and/or terrestrial broadcast systems. The BDR (4) decodes and processes the data to provide video, audio and/or auxiliary data for display on a display screen (6), listening to via speakers and/or for storage in the hard disk drive of the BDR (4) for subsequent display/listening at some time in the future. One or more points of reference can be labelled in incoming data and/or stored data in the BDR (4), such that on selection of a reference function in the BDR by the user using remote control means (10), the one or more reference points of data are assembled in sequence for display on the display screen (6) and/or listening to via the speakers.

Abstract: Buzz reduction circuit for eliminating a vertical period buzz without being influenced by amplifier circuits in an audio signal line. A video signal of a VCR video head is input to a vertical synchronizing signal separating circuit to separate a vertical synchronizing signal. A vertical synchronizing pulse is obtained by an integral circuit and a vertical period buzz reduction signal is produced by a vertical period buzz reduction circuit, said vertical period buzz reduction signal having an equal output level and an inverted phase in comparison with the vertical period buzz. The vertical period buzz reduction signal is inputted to a pre-stage of an audio amplifier circuit in an audio output line of a linear audio head to reduce the vertical period buzz included in an output signal of the linear audio head.

Abstract: An aural carrier signal is corrected in a common amplifier system wherein the correction serves to reduce cross-modulation distortion of the aural carrier signal caused by non-linearities of the common amplifier system. An aural corrector receives a modulated visual carrier signal comprised of a visual carrier signal modulated by a video baseband signal and a phase corrected aural carrier signal and provides therefrom a combined corrected aural carrier signal. The visual carrier signal is combined with the combined corrected aural carrier signal to provide a corrected output carrier signal.

Abstract: A broadcasting receiver that receives broadcasting signals transmitted by a broadcasting station accompanying audio signals of multiple languages and automatically selects a certain broadcasting language to be outputted is described here. The receiver is capable of displaying a “Priority Switching Language Registration Menu” on its display in order to set up and register switching of priority languages. A priority language list determined by a user referring to a language list database displayed on the display is stored into a memory together with the maximum number of audio channels set up by the user.

Abstract: An audio description of a television program, i.e., a sound bite, is reproduced simultaneously with the display of the program at a television receiver. Specifically, the sound bite is embedded in a television signal that contains audio component and a video component. The television signal is transmitted to a plurality of television receivers and intercepted at one of the receivers. The video component is displayed on a monitor and the audio component is reproduced. On command the sound bite is reproduced instead of the audio component. An audio description of a television program, i.e., a sound bite, is also reproduced simultaneously with the display of a program listing of the program at a television receiver. Specifically, when the program listing is marked with an on-screen cursor, the sound bite is reproduced.

Abstract: In a television receiving apparatus, a receiving apparatus 1 has storage means for storing a voice output switching table 20 registering a voice setting record 21 having the voice output format associated with the broadcasting language of the received digital broadcasting in a control unit 2. Every time the switching operation of the voice output format is made, the voice setting record 21 is selected in the registered order. Also, the receiving apparatus 1 outputs a voice signal with the language and the voice output format based on the selected voice setting record 21 from an output portion 6. Accordingly, the broadcasting language and the voice output format of the digital broadcasting being received can be switched by single operation, resulting in enhanced operability.

Abstract: The present invention relates to a method of transporting video and audio data. The method includes receiving, by a first transmitter (CE transmitter, for example), a video data stream and an audio data stream. The first transmitter generates a composite data stream from the audio data stream and the video data stream. The first transmitter communicates the composite data stream to a second transmitter (DVI 1.0 transmitter, for example), which in turn transmits the composite data stream to a remote receiver.

Abstract: The method, apparatus, and system for controlling audio anomalies by using a mute switch 51 to prevent output of an auxiliary audio signal 21 in a television signal 20 with an auxiliary audio signal 21, such as a NICAM audio signal or dual language audio signal, adjacent to a first audio signal 22. The mute switch 51 operation is a function of the type of receiver 19 receiving television signal 20 and a function of verifying the presence of an auxiliary audio signal 21 in television signal 20. The present invention controls audio anomalies such as audio whistle and audio pop.

Abstract: A video signal receiver is operative to control display of video information. Particularly, a video signal receiver is operative to provide controlled display of video information pertaining to a television program signal in response to a parameter of the television program signal. More particularly, a television signal receiver is operative to provide controlled display of auxiliary video information of a television program signal in response to a parameter of an audio signal portion of the television program signal. In one form, a television signal receiver is operative to control display of video program information with regard to a television program signal in response to a parameter level of a parameter of an audio program portion of the television program signal. The television signal receiver includes reference level setter, a signal comparator, and a video signal modifier. The reference level setter is operative to set a reference level.

Abstract: When a user gives a parameter storage instruction via a remote controller, current settings of parameters in an input switching circuit, surround circuit, graphic equalizer and electronic volume are stored into a non-volatile RAM. Then, once the user gives a reproduction instruction via the remote controller, the stored settings of the parameters are read out from the non-volatile RAM and set to the input switching circuit, surround circuit, graphic equalizer and electronic volume. Once the user selects a desired one of customizing buttons that are provided on the remote controller belonging to an audio apparatus connected with a personal computer and selects functions to be allocated to the selected customizing button, the personal computer creates setting information in accordance with the user's selections, and transmits the thus-created setting information to the audio apparatus. In turn, the audio apparatus stores the allocated functions of the customizing button on the basis of the setting information.

Abstract: Method and apparatus for generating a composite audio signal clocked to a selected frequency from left and audio input signals. A video/audio signal generator transmits the left and right audio input signals, together with a video signal having a horizontal synchronization signal embedded therein. If copy protection has not been applied to the video signal, the embedded horizontal synchronization signal will have a frequency of 15.734 KHz. If applied to the video signal, copy protection techniques will shift the frequency of the horizontal synchronization signal. To avoid distortion of the composite audio signal, a switch configured to selectively couple the video signal or a secondary video signal generated by an internal video signal generator to an audio signal processor which generates the composite audio output signal from the left and right audio input signals. Embedded within the secondary video signal is a horizontal synchronization signal having a frequency of 15.734 KHz.

Abstract: In general, a system and method for routing audio over a Digital Visual Interface (DVI) link is described herein. In one embodiment, the system comprises a a Digital Audio Interface (DAI) transmitter and a DAI receiver. Coupled to a fourth channel of the DVI link that transmits a pixel-rate clock signal, the DAI transmitter modulates the pixel-rate clock signal by input digital audio. The DAI transmitter sends the modulated clock signal to the DAI receiver. The DAI receiver recovers the digital audio from the modulated pixel-rate clock signal.

Abstract: An image reproducing apparatus having a screen blanking function for suspending image information displayed on a screen and a screen blanking method using the same are provided. The image reproducing apparatus includes a command applying circuit for applying image blanking execution and cancellation codes, a screen blanking determining circuit for determining whether a screen is to be blanked according to a code provided by the command applying circuit, and a screen power controlling circuit for controlling the power supply provided to the screen according to the determined result of the screen blanking determining circuit.

Abstract: A ground wave video signal is extracted by a ground wave video decoder from a ground wave broadcast signal received by a ground wave 2 tuner. A BS program link information signal is extracted by a BS program link information decoder from a BS broadcast signal received by a BS2 tuner. An AM radio sound signal is extracted by a radio sound decoder from an AM radio broadcast signal received by an AM radio tuner. The extracted ground wave video signal and BS program link information signal are displayed as videos by a display device, while the extracted AM radio sound signal is output as a sound from a speaker.

Abstract: A digital television receiver converts very-high-frequency intermediate-frequency digital television signal to a band with uppermost frequency in the lower portion of the high-frequency range. This facilitates RLC analog filtering, such as a Butterworth-Thomson-transition filter or a bridged-T trap filter, being used for suppressing the frequency-modulated audio carrier of co-channel NTSC analog television signal prior to the digital television signal being synchrodyned to baseband for recovering symbol code. The delay distortion introduced by this analog filtering is compensated for in substantial part in surface-acoustic-wave bandpass filtering of the very-high-frequency intermediate-frequency digital television signals. Remnant delay distortion is reduced by channel equalization filtering carried out in the digital regime.

Abstract: For use in a video signal processor, there is disclosed a system and method for locating program boundaries and commercial boundaries using audio categories. The system comprises an audio classifier controller that obtains information concerning the audio categories of the segments of an audio signal. Audio categories include such categories as silence, music, noise and speech. The audio classifier controller determines the rates of change of the audio categories. The audio classifier controller then compares each rate of change of the audio categories with a threshold value to locate the boundaries of the programs and commercials. The audio classifier controller is also capable of classifying at least one feature of an audio category change rate using a multifeature classifier to locate the boundaries of the programs and commercials.

Abstract: The present invention is directed to a system and method for comprehensively generating summaries of digital videos at various lengths and in different formats. In one aspect, the system analyzes closed-caption test to find summary sentence(s) for each story in the video, which are ordered in terms of their selection order. Upon selecting a presentation format, a set of images, video clips or an already-prepared video summary for each story is found. Text-to-speech tools can then be used to audit the summary sentences or capture the audio clips from the video with respect to the summary sentences.

Abstract: A ROM 51 stores a plurality of volume set values and a plurality of level change rates corresponding to each other and an IC 5 accepts a volume set value specified by a user when carrying out volume setting. Moreover, it is decided whether a reproducing object is a CD or a DVD depending on a decision signal output from a loader section 1. A level change rate corresponding to the volume set value is output to an IC 2 if the reproducing object is the DVD, and the level change rate corresponding to the volume set value is adjusted at a predetermined adjusting rate and the level change rate thus adjusted is output to the IC 2 if the reproducing object is the CD. The IC 2 changes the level of an analog signal indicative of a voice input from the loader section 1 at the level change rate and outputs the signal to an amplifying circuit 3.

Abstract: An audio description of a television program, i.e., a sound bite, is reproduced simultaneously with the display of the program at a television receiver. Specifically, the sound bite is embedded in a television signal that contains audio component and a video component. The television signal is transmitted to a plurality of television receivers and intercepted at one of the receivers. The video component is displayed on a monitor and the audio component is reproduced. On command the sound bite is reproduced instead of the audio component. An audio description of a television program, i.e., a sound bite, is also reproduced simultaneously with the display of a program listing of the program at a television receiver. Specifically, when the program listing is marked with an on-screen cursor, the sound bite is reproduced.

Abstract: In a television signal receiver for receiving and processing television signals (RF) that comprise modulated video signals and modulated audio signals, a tuner (16) receives selected television signals and furnishes at least intermediate frequency (IF) signals, a SAW filter (17) is connected to the tuner (16), a video demodulator (18) demodulates the video signals from the SAW filter (17) to obtain demodulated video signals for further processing, a generator (16) supplies signals (SIF) comprising the modulated audio signals on a carrier frequency equal to the difference between a carrier frequency of the modulated video signals and a carrier frequency of the modulated audio signals in the television signals, an audio demodulator (5) demodulates audio signals from the signals (SIF) from the generator (16) to obtain demodulated audio signals for further processing. According to the invention, the generator (16) is connected with the tuner (16) and the audio demodulator (5) is connected with the generator (16).

Abstract: A circuit for automatically discriminating audio intermediate frequencies of a received television signal that has a simple, compact and inexpensive circuit structure and can operate stably.

Abstract: An audio data input together with a motion picture data is digitized by an A/D converter portion 11 and the digital data from the A/D converter portion 11 is sampled by a sampling portion 12. The sampled data is compressed by a compressing/coding portion 13. In this construction, a sampling frequency of the sampling portion 12 is variably set by a sampling frequency control portion 14 correspondingly to a scene represented by the motion picture data Thus, in coding and compressing the motion picture data and the audio data, the audio data can be effectively compressed at a variable compression rate.

Abstract: Method and apparatus for generating a composite audio signal clocked to a selected frequency from left and audio input signals. A video/audio signal generator transmits the left and right audio input signals, together with a video signal having a horizontal synchronization signal embedded therein. If copy protection has not been applied to the video signal, the embedded horizontal synchronization signal will have a frequency of 15.734 KHz. If applied to the video signal, copy protection techniques will shift the frequency of the horizontal synchronization signal. To avoid distortion of the composite audio signal, a switch configured to selectively couple the video signal or a secondary video signal generated by an internal video signal generator to an audio signal processor which generates the composite audio output signal from the left and right audio input signals. Embedded within the secondary video signal is a horizontal synchronization signal having a frequency of 15.734 KHz.

Abstract: A television system of digital sound includes a color television and at least one pair of three-stage frequency-splitting column sound boxes with each having three speakers. A front digital processor and a power amplifier are arranged in the control circuit of the color television. Its accompanying sound outputs of a stereo are coupled respectively to the pair sound box or build it in the sound box. The system may provide television with Hi-fi stereo or serve as a sound equipment for receiving sound, perfectly reproducing various sound field effects when the scanning system of color television is turned off to save energy and effectively lengthen life of the kinescope and scanning sector.

Abstract: Method and apparatus for generating a composite audio signal clocked to a selected frequency from left and audio input signals. A video/audio signal generator transmits the left and right audio input signals, together with a video signal having a horizontal synchronization signal embedded therein. If copy protection has not been applied to the video signal, the embedded horizontal synchronization signal will have a frequency of 15.734 KHz. If applied to the video signal, copy protection techniques will shift the frequency of the horizontal synchronization signal. To avoid distortion of the composite audio signal, a switch configured to selectively couple the video signal or a secondary video signal generated by an internal video signal generator to an audio signal processor which generates the composite audio output signal from the left and right audio input signals. Embedded within the secondary video signal is a horizontal synchronization signal having a frequency of 15.734 KHz.

Abstract: An integrated circuit for decoding an analog audio signal includes a tuner that receives the analog audio signal and provides a sound intercarrier frequency signal. A digital demodulator receives and digitizes the sound intercarrier frequency signal to provide a digitized sound intercarrier frequency signal, and digitally demodulates the digitized sound intercarrier frequency signal to provide a digitized multichannel television sound (MTS) demodulated signal. A digital broadcast television system committee (BTSC) compatible decoder receives and decodes the digitized multichannel television sound (MTS) demodulated signal, and provides a summed (L+R) audio output signal and a difference (L−R) audio output signal.

Abstract: To present a broadcasting system of data broadcast capable of changing the screen display in a receiver, by displaying selectively the broadcast contents of plural channels on a receiving screen of digital satellite broadcasting of one channel, and selecting desired broadcast contents from plural on-air channels by viewer's local command operation. It is realized by broadcasting a reception screen 1 and a program Pr for controlling the sound suited to this screen 1 to a receiver Tv by using data broadcasting band in television broadcasting, and also broadcasting images of one channel of program and broadcast contents of plural programs used in data broadcast in the sound broadcasting band usually in combination to the receiver Tv, and, at the receiver Tv, selecting one desired program from the combined image and sound mixed signals of plural programs by the program Pr already received, and displaying on the screen 1 of the receiver Tv and delivering the sound of this screen.

Abstract: A separator circuit receives a stream of data including both audio and video components. The separator circuit separates the audio and video components for transmission to appropriate devices. In the preferred embodiment, the separator circuit is part of a decompression engine which decompresses the received stream of data and also separates the audio and video components. Preferably, the decompression engine is implemented within a device configured for coupling to an IEEE 1394-1995 serial bus network. Alternatively, the decompression engine is implemented as a separate dedicated device within the IEEE 1394-1995 serial bus network. After separating the audio and video components, one or both of those components are transmitted from the decompression engine over one or more isochronous channels on the IEEE 1394-1995 serial bus, to the appropriate devices.

Abstract: The present invention relates to a broadcast signal receiving device and method thereof in which genre data of a broadcast signal is detected to thereby automatically be converted to an appropriate video and audio signal. According to the present invention a broadcast signal including genre data is processed for being converted into an appropriate signal according to a control signal previously stored in a memory thereby to provide a best condition for the video and audio. Furthermore, the televiewer can change data for the video and audio established to fit the genre data at the time of manufacturing the set, and can adjust the current program being broadcasted to a certain data.

Abstract: There is provided a multi-receiving demodulator for receiving broadcasting signals from multiple broadcasting systems. The multi-receiving demodulator has a first band pass filter for selectively band-pass-filtering an intermediate frequency output from a tuner to obtain a color subcarrier corresponding to the broadcasting system of a received signal, according to a first control signal, and a second band pass filter for selectively band-pass-filtering the intermediate frequency output from the tuner to obtain an audio carrier corresponding to the broadcasting system of the received signal, according to a second control signal. A video demodulating portion receives the color subcarrier from the first band pass filter and selectively demodulates a video signal corresponding to the broadcasting system of the received signal in accordance with the second control signal.

Abstract: A television converter uses digital signal processing (DSP) to provide compatibility with different television standards including NTSC and PAL video standards and FM, BTSC, DIN, Home Theatre, NICAM and independent digital audio standards. Audio processing is accomplished without passing the audio through a Nyquist filter used for video. This eliminates AM to PM conversion improving luminance linearity and differential gain and phase. It also prevents video information from phase modulating the audio intercarrier, thereby eliminating video "buzz" components in the audio. The audio processing includes a synchronous FM demodulator and a separate synchronous FM/QPSK demodulator for handling the different audio standards. Handling historical analog TV standards with DSP also enables the advantageous combination of analog and digital television reception within a single digital VLSI ASIC.

Abstract: The disclosed BTSC encoder includes a left high pass filter means for receiving a digital left channel audio signal and for digitally high pass filtering the digital left channel audio signal and thereby generating a digital left filtered signal; a right high pass filter means for receiving a digital right channel audio signal and for digitally high pass filtering the digital right channel audio signal and thereby generating a digital right filtered signal; a matrix means for receiving the digital left and digital right filtered signals, and including means for summing the digital left and digital right filtered signals and thereby generating a digital sum signal, and including means for subtracting one of the digital left and digital right filtered signals from the other of the digital left and digital right filtered signals and thereby generating a digital difference signal; a difference channel processing means for digitally processing the digital difference signal; and a sum channel processing means for d

Abstract: An audio system for use with an electromechanical apparatus having a device coupled to the audio system, the device having a mechanical resonance stimulated by spectral components of vibrations radiated by the audio system, which includes an input for receiving audio signals and a gain reducer. The gain reducer includes a detector detecting in the audio signal the presence of the spectral components that excite the mechanical resonance and also includes a gain cell reducing the gain of said audio signals, either broadband or narrowband, responsive to the detector.

Abstract: A method for editing a video recording includes receiving a signal including video content and analyzing the video content of the received signal to identify visual attributes which characterize the video content. Based, at least in part, on the identified visual attributes of the video content an audio selection with which to augment the received signal is identified from a plurality of available audio selections.

Abstract: For a possible simple structure, dispensing with ceramic filters, an FM demodulator for demodulating sound-FM signals comprises a controllable amplifier (1) which receives the sound signals converted to intermediate frequencies, said amplifier having a gain which is adjusted by means of an amplitude control circuit (4) and whose output signal is applied to the amplitude control circuit and to the phase-locked loop which supplies a demodulated sound signal in the locked-in state from its output, said phase-locked loop including a loop filter (7) which comprises a filter (8, 9, 10) of at least the second order with a pole at the frequency f=0, and a limit-detection circuit (13) which feeds back the operating frequency of the phase-locked loop to a predetermined frequency range when said phase-locked loop leaves this frequency range around a predeterminable nominal demodulation frequency, the amplitude control circuit (4) controlling the controllable amplifier (1) in dependence upon its output signal and a signa

Abstract: An automatic tuning apparatus is capable of automatically switching a tuning mode of a tuner circuit, automatically arranging various signal data in or after completion of tuning and arbitrarily and automatically arranging various signal data by a user. The apparatus comprises a SYNC discrimination circuit (11) for discriminating whether or not a video signal system is a NTSC system or another system, a tuning mode switching circuit (12) for switching a tuning mode, and a color discrimination circuit (13) for receiving a color burst signal (identic signal) for discriminating whether the video signal system is a PAL system or a SECAM system. As to the NTSC system, the PAL system, the SECAM system and a SECAM-L system, the user may not set the tuning mode of tuning means, whereby an automatic tuning apparatus imposing no burden on the user can be provided.

Abstract: In an SIF signal processing circuit, an SIF signal, which is an FM signal having a carrier frequency equal to a frequency difference between a video IF carrier and a sound IF carrier, is first converted to a lower carrier frequency common to SIF signals of any broadcasting system, and is then demodulated. The SIF processing circuit is provided with a PLL circuit for converting an SIF signal down to a lower frequency, so that an output from the PLL circuit is mixed with the SIF signal. The output of the PLL circuit is varied in accordance with a broadcasting system. A plurality of frequencies can be easily obtained from the PLL circuit simply by controlling a frequency division factor of its frequency divider. Thus, resonators can be dispensed with except for one for generating a reference oscillation signal.

Abstract: A noise suppressor has signal detecting device 1 for detecting signals A and B on signal lines, sum signal generating device 21 for summing the detected signals, difference signal generating device 22 for differencing the detected signals, noise canceling device 3 for suppressing or removing noise components in a difference signal generated by the difference signal generating device and signal separating device 4 for separating the signal to those corresponding to the signal lines, according to the difference signal with the noise components suppressed or removed and the sum signals.

Abstract: A circuit for decoding additional information in a composite signal, the circuit having a filter device for separating a signal range in the composite signal, which includes the additional information in coded form. An adaptive decoding device is controlled by a signal quality parameter which is determined in an additional circuit from the respective reception state of the composite signal.

Abstract: This invention relates to converting the characteristics of sounds such as oices, musical tones, natural sounds, and so on, and more specifically to facilitating the conversion operation, and also to sound-label association suitable for the characteristic conversion. Various embodiments of the invention comprise several of the following elements to provide useful results: sound-label data holding means, display control means, conversion means, sound-label dividing means, label-data dividing means, association forming means, data inputting means, and communication means. Other embodiments of the invention may be practiced as processes or articles of manufacture.

Abstract: In a bilingual television signal processor which is capable of automatically controlling a bandpass filter for detecting a pilot signal included in a bilingual signal received in a television receiver having a bilingual function without an external adjustment, an improvement including a microcomputer for outputting an on-screen display message indicating a bilingual broadcasting and scanning the locked information of the pilot signal outputted from the PLL detector in a predetermined voltage range and step and outputting a corresponding pulse width modulated (PWM) signal, and a digital/analog (DA) converter for converting the PWM signal outputted from the microcomputer into an analog signal and outputting a corresponding DC voltage to set the bandpass filter, can achieve the effect that it can be controlled without an external adjustment since the voltage for adjusting the center frequency of the bandpass filter is scanned in an appropriate range, and as a result, the shift in the center frequency of the band

Abstract: The present invention provides an apparatus that transmits the stereo and the surround sound information of the L-R signal without excessive attenuation at the higher frequencies in order to allow transmission of surround sound through a noisy medium. The apparatus includes a surround sound conditioner coupled to receive a L-R signal portion of the television signal for pre-emphasizing and companding the L-R signal to produce a conditioned L-R signal; a mixer coupled to the surround sound conditioner for switching the conditioned L-R signal at a predetermined value to produce an amplitude modulated L-R signal; and a synchronizing circuitry coupled to the mixer for maintaining the predetermined value in step with the reference value, wherein the mixed L-R signal is combined with a L+R signal portion of the television signal to produce a composite output signal.

Abstract: An apparatus for providing described television services includes a receiver for receiving description data corresponding to an audiovisual program; a text-to-speech converter for converting the description data into a speech signal corresponding to the description data; a memory device for receiving and storing the speech signal and a corresponding time code from the audiovisual program; a mixing circuit for retrieving the speech signal from the memory device and mixing the retrieved speech signal with the audio track of the audiovisual program to produce a combined audio signal; and a transmitter for simultaneously providing the combined speech signal and the audiovisual program to a viewer. The apparatus provides the combined speech signal to the viewer via the SAP channel. The apparatus may also include a translator for translating the description data into a foreign language prior to converting the description data into the speech signal.

Abstract: A television receiver for automatically determining from a command issued from a controller, the control of power on/off, picture brightness and picture contrast of a video projector using a video projector controller contained in the television receiver and for controlling the deployment and retraction of a screen using a screen controller also contained in the television receiver.

Abstract: A radio frequency transmitter includes a video signal input terminal, an audio signal input terminal, a variable frequency modulation degree circuit, a band pass filter, a sound intensity regulation circuit, a voltage controlled oscillator, a modulation mixer, and an amplifying circuit. The transmitter is arranged to eliminate high frequency abnormalities, prevent interference of audio signals with video signals, stabilize the audio frequency response of the transmitter, and improve circuit stability.

Abstract: The disclosed BTSC encoder includes a left high pass filter means for receiving a digital left channel audio signal and for digitally high pass filtering the digital left channel audio signal and thereby generating a digital left filtered signal; a right high pass filter means for receiving a digital right channel audio signal and for digitally high pass filtering the digital right channel audio signal and thereby generating a digital right filtered signal; a matrix means for receiving the digital left and digital right filtered signals, and including means for summing the digital left and digital right filtered signals and thereby generating a digital sum signal, and including means for subtracting one of the digital left and digital right filtered signals from the other of the digital left and digital right filtered signals and thereby generating a digital difference signal; a difference channel processing means for digitally processing the digital difference signal; and a sum channel processing means for d

Abstract: In the karaoke system 1, a center 3 is connected to a plurality of karaoke terminals 5 by a coaxial cable 7. The center 3 divides the karaoke song data stored in the memory device 13 over several channels and transmits all the karaoke song data within a fixed time period in succession to the karaoke terminals 5 via the coaxial cable 7. This operation is performed regardless of whether or not a song is requested from one of the karaoke terminals 5. Whether the karaoke data transmitted in succession is data of a requested song is determined by the control portion 41 of a karaoke terminal 5. If so, karaoke performance processes are performed wherein the karaoke data is reproduced and the orchestral accompaniment and lyric image is outputted.

Abstract: Input image data and audio data divided into a plurality of portions are continuously recorded in a solid-state memory. When the audio data is to be reproduced in units of the portions, a reproducing start address of each portion of the audio data is changed in an order different from that in recording, thereby reproducing the audio data. The image data is divided into a plurality of portions corresponding to the plurality of portions of the audio data. The image data is reproduced in units of the portions. At this time, the reproducing start address of each portion of the image data is changed in an order different from that in recording, thereby reproducing the image data. With this arrangement, even when the image and audio data are reproduced in an order different from that in recording, the reproduced audio data can be confirmed.

Abstract: A sound pickup system with which there are associated a video aiming system and a method for the setting of the characteristic parameters of the sound pickup. The device comprises, in addition to the network of sensors, a control unit and a circuit for the setting of the characteristic parameters, a video camera, a video screen and a circuit for coupling the screen to the a circuit for setting the characteristic parameters of each of the sound reception channels in order to achieve a superimposition of images so that it is possible to control the setting of the parameters with respect to the position and size of the sound sources. A method for the setting of the characteristic parameters of the sound pickup enables the interpolation of the coefficients of digital filters linearly and in time. Application to sound pickup systems adapted to conference halls.

Abstract: A radio frequency (RF) modulation apparatus for modulating input video and audio signals into a television broadcast signal is provided. The apparatus includes a buffer amplifier, a decoder, a switching device, and an RF modulator. The buffer amplifier amplifies and stores the input audio signal as a stored audio signal. The decoder inputs and decodes the stored audio signal to produce a decoded audio signal. The switching device inputs the stored audio signal from the buffer amplifier and the decoded audio signal from the decoder and selectively outputs either the stored audio signal or the decoded audio signal as a selected audio signal. Specifically, the stored audio signal is output as the selected audio signal if the input audio signal corresponds to a stereophonic audio signal or an audio multiplexing signal. On the other hand, the decoded audio signal is output as the selected audio signal if the input audio signal corresponds to a mono audio signal.