Plural (e.g., Stereo Or Sap) Patents (Class 348/481)
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Patent number: 10355635Abstract: A motor control device includes a movement command generator that outputs a movement command of a motor, a filter that performs filter processing of the movement command and outputs the filtered movement command, and a position controller that performs a position control of the motor. The filter is an infinite impulse response digital filter that is represented by a transfer function H(z): H(z)=(b0+b1·z?1+b2·z?2)/{1?(a1·z?1+a2·z?2)} with filter coefficients a1, a2, b0, b1, and b2. The filter is configured to change the filter coefficient b0 in a first sample period, to change the filter coefficients a1 and b1 in a second sample period which follows the first sample period, and to change the filter coefficients a2 and b2 in a third sample period which follows the second sample period.Type: GrantFiled: June 29, 2016Date of Patent: July 16, 2019Assignee: Panasonic Intellectual PropertyInventors: Atsumi Hashimoto, Hiroyuki Nakata, Yasuyoshi Honuchi, Ryosuke Yamamoto
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Patent number: 9830915Abstract: An audio signal decoder for providing a decoded audio signal representation on the basis of an encoded audio signal representation has a decoder preprocessing stage for obtaining a plurality of frequency band signals from the encoded audio signal representation, a clipping estimator, a level shifter, a frequency-to-time-domain converter, and a level shift compensator. The clipping estimator analyzes the encoded audio signal representation and/or side information relative to a gain of the frequency band signals in order to determine a current level shift factor. The level shifter shifts levels of the frequency band signals according to the level shift factor. The frequency-to-time-domain converter converts the level shifted frequency band signals into a time-domain representation. The level shift compensator acts on the time-domain representation for at least partly compensating a corresponding level shift and for obtaining a substantially compensated time-domain representation.Type: GrantFiled: July 9, 2015Date of Patent: November 28, 2017Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Stephan Schreiner, Arne Borsum, Matthias Neusinger, Manuel Jander, Markus Lohwasser, Bernhard Neugebauer
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Patent number: 8526622Abstract: Television audio signal encoders include a matrix that sums a left channel audio signal and a right channel audio signal to produce a sum signal. The matrix also subtracts one of the left and right audio signals from the other to produce a difference signal. The encoders also include a configurable infinite impulse response digital filter that selectively uses one or more sets of filter coefficients to filter the difference signal and/or the sum signals. Each selectable set of filter coefficients is associated with a unique filtering application to prepare the difference signal for transmission. Decoders with the matrix are also disclosed.Type: GrantFiled: September 7, 2010Date of Patent: September 3, 2013Assignee: THAT CorporationInventors: Matthew S. Barnhill, Roger R. Darr
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Patent number: 8239767Abstract: Audio stream management techniques are described. In an implementation, a unique representation is generated by a client for each of a plurality of audio streams associated with television content received at the client. Each of the unique representations is displayed in a user interface at the client to be selectable by a user to cause output of a respective audio stream with the television content.Type: GrantFiled: June 25, 2007Date of Patent: August 7, 2012Assignee: Microsoft CorporationInventors: Michael Victor Smith, Jeff Du
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Patent number: 7908638Abstract: A unified system of programming communication. The system encompasses the prior art (television, radio, broadcast hardcopy, computer communications, etc.) and new user specific mass media. Within the unified system, parallel processing computer systems, each having an input (e.g., 77) controlling a plurality of computers (e.g., 205), generate and output user information at receiver stations. Under broadcast control, local computers (73, 205), combine user information selectively into prior art communications to exhibit personalized mass media programming at video monitors (202), speakers (263), printers (221), etc. At intermediate transmission stations (e.g., cable television stations), signals in network broadcasts and from local inputs (74, 77, 97, 98) cause control processors (71) and computers (73) to selectively automate connection and operation of receivers (53), recorder/players (76), computers (73), generators (82), strippers (81), etc.Type: GrantFiled: June 7, 1995Date of Patent: March 15, 2011Assignee: Personalized Media Communications LLCInventors: John Christopher Harvey, James William Cuddihy
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Patent number: 7826621Abstract: A television audio signal encoder includes a matrix that sums a left channel audio signal and a right channel audio signal to produce a sum signal. The matrix also subtracts one of the left and right audio signals from the other to produce a difference signal. The encoder also includes a configurable infinite impulse response digital filter that selectively uses one or more sets of filter coefficients to filter the difference signal. Each selectable set of filter coefficients is associated with a unique filtering application to prepare the difference signal for transmission.Type: GrantFiled: May 26, 2009Date of Patent: November 2, 2010Assignee: THAT CorporationInventors: Matthew Barnhill, Roger Darr
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Publication number: 20100058430Abstract: A system that incorporates teachings of the present disclosure may include, for example, a set top box comprising a controller to receive media content over an Internet Protocol Television network, detect Secondary Audio Programming (SAP) content associated with the media content, present an SAP indicator with the media content to a user when the SAP content is detected for the media content, receive a selection of the SAP content by the user, and present the media content with the selected SAP content. Other embodiments are disclosed.Type: ApplicationFiled: August 26, 2008Publication date: March 4, 2010Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Todd W. Jones, Douglas Medina, Frank Mitchals
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Patent number: 7539316Abstract: A television audio signal encoder includes a matrix that sums a left channel audio signal and a right channel audio signal to produce a sum signal. The matrix also subtracts one of the left and right audio signals from the other to produce a difference signal. The encoder also includes a configurable infinite impulse response digital filter that selectively uses one or more sets of filter coefficients to filter the difference signal. Each selectable set of filter coefficients is associated with a unique filtering application to prepare the difference signal for transmission.Type: GrantFiled: March 24, 2005Date of Patent: May 26, 2009Assignee: THAT CorporationInventors: Matthew Barnhill, Roger Darr
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Patent number: 7515212Abstract: A digital broadcast receiver selects a language in which captions are displayed on a monitor on the basis of a language designated by a user for caption output (caption selecting means). Further, the digital broadcast receiver selects a language in which audio is output through a speaker on the basis of a language designated for audio output (audio selecting means). The digital broadcast receiver is designed so that the language designated for caption output and the language designated for audio output are set as a designated language that is unified (designated language setting means). Therefore, a user can designate a language for caption output and a language for audio output at the same time in only one operation to input a designated language. Accordingly, the necessity for separately inputting a language designated for caption output and a language designated for audio output can be avoided to eliminate the inconvenience to a user.Type: GrantFiled: June 24, 2005Date of Patent: April 7, 2009Assignee: Funai Electric Co., Ltd.Inventor: Takahiro Katayama
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Patent number: 7457420Abstract: A Japanese BTSC audio broadcast signal has three modes of transmission: mono, stereo, or dual mono. The control channel centering at 3.5 fH is one of the three channels in the J-BTSC signal, and contains information to indicate to the decoder which one of the three modes the audio transmission is in. The present invention uses a bandpass filter directly in the AM band, followed by envelope filtering and a decision circuit. Therefore, the need for AM demodulation and AM carrier detection is eliminated.Type: GrantFiled: August 15, 2003Date of Patent: November 25, 2008Assignee: Broadcom CorporationInventor: Hoang Nhu
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Patent number: 7068322Abstract: A remote control transmitter is provided with an AUDIO key for switching an audio mode in sound multiplex broadcasting and an ENTER key for determining various types of selections. When the ENTER key is operated in a state where the audio mode is temporarily selected by operating the AUDIO key, the state where the audio mode is temporarily selected is treated as the steady selection corresponding to setting on a menu screen.Type: GrantFiled: June 5, 2003Date of Patent: June 27, 2006Assignee: Sanyo Electric Co., Ltd.Inventor: Akinori Tsubouchi
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Patent number: 6895596Abstract: A circuit and method of interleaving a data stream (DATA) in which the data to be interleaved is contained in separate sections of the data stream. A buffer storage circuit (28) receives and stores the data stream. A first section (T1-T2) of the data stream is transferred to a first memory circuit (62) and a second section (T3-T5) of the data stream is transferred to a second memory circuit (64). A multiplexer circuit (68) receives data from the first and second memory circuits and selects between the first and second sections of the data stream in response to a selection signal to produce an interleaved output signal.Type: GrantFiled: December 23, 1997Date of Patent: May 17, 2005Assignee: Freescale Semiconductor, Inc.Inventors: William E. Salzer, Mary E. Gallagher, Patrick J. O'Malley
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Publication number: 20020083453Abstract: A system and method by which a user can select the language in which on-screen displays are displayed and audio programs are broadcast on a receiver by making a single-on-screen selection. The on-screen displays may include user menu, close captioning and/or teletext.Type: ApplicationFiled: December 27, 2000Publication date: June 27, 2002Inventor: Benoit Pol Menez
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Patent number: 6192086Abstract: A BTSC-compatible encoder that is integrated onto an application specific integrated circuit includes a low pass filter that is responsive to a digital representation of an audio signal that has a sample rate of FS. The low pass filter generates a corresponding second digital signal having an pseudo-interpolated sampling rate of 4FS. A digital infinite impulse response pre-emphasis filter generates a pre-emphasized output signal corresponding to the second digital signal. A digital signal compressor that is responsive to the pre-emphasized output signal, generates a compressed digital signal corresponding to the pre-emphasized output signal. A digital phase locked loop that is responsive to a video sync pulse having a sync pulse frequency, generates a third digital signal corresponding to a sinusoid having a frequency equal to twice the sync pulse frequency and a having a sampling frequency equal to 4FS.Type: GrantFiled: January 14, 2000Date of Patent: February 20, 2001Assignee: Antec CorporationInventor: Roger Darr
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Patent number: 6118879Abstract: 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 dType: GrantFiled: March 12, 1998Date of Patent: September 12, 2000Assignee: THAT CorporationInventor: Christopher M. Hanna
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Patent number: 5929921Abstract: The present invention provides a video and audio signal multiplex transmitting apparatus having a video and audio signal multiplex sending apparatus for grouping audio data to packets of a fixed length in the sending side, and multiplexing video and audio signals by multiplexing horizontal and vertical phase signal outputs from horizontal and vertical counters that are in synchronization with a video signal to an audio data as video phase information, and a video and audio signal multiplex receiving apparatus provided with an audio packet interpolating device for separating the signal received to video and audio signals, detecting, if any audio data is lost, a lost audio data from a data block number of the audio data and audio clock phase information, and recovering an audio clock by means of horizontal and vertical counters and the clock phase information transmitted.Type: GrantFiled: March 15, 1996Date of Patent: July 27, 1999Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenshi Taniguchi, Tomotaka Takeuchi, Masatoshi Tanaka
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Patent number: 5796842Abstract: 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 dType: GrantFiled: June 7, 1996Date of Patent: August 18, 1998Assignee: THAT CorporationInventor: Christopher M. Hanna
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Patent number: 5523525Abstract: A performance recording and playback apparatus is provided between a performance apparatus and a video apparatus in an audio/video recording and playback system. The performance apparatus is capable of producing and reproducing performance data, while the video apparatus is capable of recording and playing back performance data and video data on a single recording medium. Herein, the performance data produced from the performance apparatus is supplied to and recorded by the video apparatus.Type: GrantFiled: August 13, 1993Date of Patent: June 4, 1996Assignee: Yamaha CorporationInventors: Kazuo Murakami, Akira Hashimoto