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公开(公告)号：US20230412761A1
公开(公告)日：2023-12-21
申请号：US18162643
申请日：2023-01-31
发明人： Lien-Hsiang Sung
IPC分类号： H04N7/06
摘要： An electronic device includes a receiving unit, a signal processing unit, a transmitting unit, and an audio timing unit. The receiving unit receives audio data and first video data. The signal processing unit generates second video data and a pixel clock signal for playing the second video data according to the first video data. The transmitting unit transmits the second video data, the audio data, the pixel clock signal, and a cycle time stamp (CTS) to a receiver. The audio timing unit generates an internal reference signal adjusts a frequency of the internal reference signal according to a receiving speed of the audio data, and generates the CTS according to the internal reference signal and the pixel clock signal so that the receiver can generate an audio clock signal for playing the audio data according to the pixel clock signal and the CTS.
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公开(公告)号：US20190208158A1
公开(公告)日：2019-07-04
申请号：US15861526
申请日：2018-01-03
申请人： Plantronics, Inc.
摘要： A display apparatus uses a LED array having a LED pixel pitch, having LED pixels emitting light with viewing angles θ. A transmissive diffuser panel is mounted with the LED array, having a directly lit, non-planar diffuser panel surface spaced away from the LED array by at least distance D. The distance D and the viewing angles θ being are effective to merge illumination from multiple LED pixels in the LED array on the directly lit diffuser panel surface. A controller is connected to the LED array having circuitry to control the LED array in response to image data to induce display via the diffuser panel of a time varying image with spatially varying colors and intensities.
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公开(公告)号：US20180007251A1
公开(公告)日：2018-01-04
申请号：US15200741
申请日：2016-07-01
CPC分类号： H04N5/23206 , H04N5/23216 , H04N5/917 , H04N7/06 , H04N21/2183 , H04N21/2187 , H04N21/23106 , H04N21/23805 , H04N21/24
摘要： In one aspect, an example method for dynamically adjusting a camera setting for a video stream includes: (i) receiving, by a computing system, video content captured by a camera operating in accordance with a camera setting; (ii) generating, by the computing system, a video stream representing the video content; and (iii) while generating the video stream: (a) determining, by the computing system, an amount of packets in a memory buffer; (b) determining, by the computing system, a time period since the camera setting was last adjusted; and (c) using, by the computing system, the determined amount of packets in the memory buffer and the determined time period since the camera setting was last adjusted as a basis to adjust the camera setting.
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4.发明申请LOW PROFILE OMNI-DIRECTIONAL PLANAR ANTENNA WITH WIFI VIDEO STREAMING CAPABILITY THROUGH BROADBAND NETWORK 有权通过宽带网络的无线视频流量能力的低剖面OMNI-方向平面天线公开(公告)号：US20140191909A1
公开(公告)日：2014-07-10
申请号：US14147725
申请日：2014-01-06
IPC分类号： H01Q1/22
CPC分类号： H01Q1/2291 , H01Q1/2275 , H04N7/06
摘要： An antenna device includes a housing defining an interior cavity, and an RF antenna situated within the housing. The RF antenna receives high definition television signals broadcast over the air. An MHL connector is mounted on the housing. An external audio or video streaming signal device is coupleable to the MHL connector. An MHL to HDMI converter circuit situated within the interior cavity of the housing receives signals from the external audio or video streaming signal device and processes these signals into an HDMI signal format. The HDMI signals are provided on an HDMI output connector mounted on the housing. RF signals from the RF antenna are provided to an RF coaxial cable connector also mounted on the housing.
摘要翻译： 天线装置包括限定内腔的壳体和位于壳体内的RF天线。 RF天线接收广播的高分辨率电视信号。 MHL连接器安装在外壳上。 外部音频或视频流信号设备可连接到MHL连接器。 位于壳体内腔内的MHL至HDMI转换器电路接收来自外部音频或视频流信号装置的信号，并将这些信号处理为HDMI信号格式。 HDMI信号提供在安装在外壳上的HDMI输出接口上。 来自RF天线的RF信号被提供到也安装在壳体上的RF同轴电缆连接器。
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公开(公告)号：US08477248B2
公开(公告)日：2013-07-02
申请号：US11825841
申请日：2007-07-09
CPC分类号： H04N5/60 , H04N7/06 , H04N21/4394 , H04N21/4396
摘要： A system and method for demodulating signals are disclosed. In a particular embodiment, the method includes receiving a signal at an input and determining a first noise estimate of the signal. The method also includes providing a first output indicating a second noise estimate of the signal at a primary carrier frequency and providing a second output indicating a third noise estimate of the signal at a secondary carrier frequency.
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6.发明授权公开(公告)号：US07912153B2
公开(公告)日：2011-03-22
申请号：US11426836
申请日：2006-06-27
CPC分类号： H04N7/06 , H04H20/48 , H04N5/602 , H04N5/607 , H04N21/8106 , H04N21/85406 , H04R5/04
摘要： A system and method are disclosed for performing digital multi-channel decoding of a BTSC composite audio signal. Each subsequent stage of the digital multi-channel decoding process is performed at the lowest sampling rate that yields acceptable performance for that stage. Analog-to-digital conversion of the composite audio signal is performed first to generate a composite digital audio signal. After analog-to-digital conversion, all signal processing may be performed in the digital domain. The composite digital audio signal is digitally filtered to frequency compensate for variations caused by previous stages of processing, including IF demodulation. Digital channel demodulation and filtering are performed to isolate single channels of the composite digital audio signal such as SAP, L−R, and L+R channels. SAP and L−R channels are DBX decoded resulting in corresponding decoded signals using a unique combination of digital filters that are an efficient translation of a corresponding combination of analog filters.
摘要翻译： 公开了一种用于对BTSC复合音频信号执行数字多声道解码的系统和方法。 数字多通道解码过程的每个后续阶段以最低的采样率执行，该阶段产生可接受的性能。 首先执行复合音频信号的模数转换以产生复合数字音频信号。 在模数转换之后，可以在数字域中执行所有的信号处理。 复合数字音频信号被数字滤波，以对由先前的处理阶段（包括IF解调）引起的变化进行频率补偿。 执行数字信道解调和滤波以隔离诸如SAP，L-R和L + R信道的复合数字音频信号的单个信道。 SAP和L-R通道被DBX解码，从而产生相应的解码信号，其使用数字滤波器的独特组合，其是模拟滤波器的相应组合的有效转换。
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公开(公告)号：US20100103314A1
公开(公告)日：2010-04-29
申请号：US12648520
申请日：2009-12-29
CPC分类号： H04H40/72 , G10L19/008 , H04N5/607 , H04N7/06 , H04N21/233 , H04N21/2368 , H04N21/2383 , H04N21/8106
摘要： A television audio signal encoder includes an up-sampler that inserts additional samples into a sum signal, a difference signal, and/or a secondary audio program signal to increase the sample rate of the corresponding signal or signals. The sum signal represents the sum of a left channel digital audio signal and a right channel digital audio signal and the difference signal represents the difference between the left and right audio signals.
摘要翻译： 电视音频信号编码器包括将附加样本插入和信号，差分信号和/或次要音频节目信号的上采样器，以增加相应信号或信号的采样率。 和信号表示左声道数字音频信号和右声道数字音频信号的和，差信号表示左右音频信号之间的差。
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公开(公告)号：US07671926B2
公开(公告)日：2010-03-02
申请号：US11012330
申请日：2004-12-16
申请人： Jong Jin Lee , Chang Kap Nam , Ryo Young Mang
发明人： Jong Jin Lee , Chang Kap Nam , Ryo Young Mang
摘要： Disclosed herein is a Radio Frequency (RF) modulator. The RF modulator includes a Chrominance-to-Luminance (C/L) delay compensation unit for receiving a video signal and compensating for a time delay between the chrominance and luminance signals of the video signal, and a modulation unit for receiving the video signal, which is compensated for by the C/L delay compensation unit, and an audio signal and converting the video and audio signal into a preset frequency-band RE signal. The C/L delay compensation unit and the modulation unit are packaged in a single package.
摘要翻译： 本文公开了一种射频（RF）调制器。 RF调制器包括色度亮度（C / L）延迟补偿单元，用于接收视频信号并补偿视频信号的色度和亮度信号之间的时间延迟，以及用于接收视频信号的调制单元， 其被C / L延迟补偿单元补偿，并且音频信号并将视频和音频信号转换成预设的频带RE信号。 C / L延迟补偿单元和调制单元封装在单个封装中。
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公开(公告)号：US07639307B2
公开(公告)日：2009-12-29
申请号：US11196133
申请日：2005-08-03
申请人： Matthew Barnhill , Matthew Easley
发明人： Matthew Barnhill , Matthew Easley
IPC分类号： H04N7/08
CPC分类号： H04H40/72 , G10L19/008 , H04N5/607 , H04N7/06 , H04N21/233 , H04N21/2368 , H04N21/2383 , H04N21/8106
摘要： A television audio signal encoder includes an up-sampler that inserts additional samples into a sum signal, a difference signal, and/or a secondary audio program signal to increase the sample rate of the corresponding signal or signals. The sum signal represents the sum of a left channel digital audio signal and a right channel digital audio signal and the difference signal represents the difference between the left and right audio signals.
摘要翻译： 电视音频信号编码器包括将附加样本插入和信号，差分信号和/或次要音频节目信号的上采样器，以增加相应信号或信号的采样率。 和信号表示左声道数字音频信号和右声道数字音频信号的和，差信号表示左右音频信号之间的差。
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公开(公告)号：US07576804B2
公开(公告)日：2009-08-18
申请号：US11168211
申请日：2005-06-27
申请人： Rudolf Koppe
发明人： Rudolf Koppe
IPC分类号： H04N5/38
CPC分类号： H04N7/10 , H04N5/40 , H04N5/455 , H04N7/06 , H04N11/002
摘要： A triax transmitter interface for transmitting a video signal on a triax cable comprises a video signal input port, a first modulator for modulating a luminance component of a video signal received at said input port onto a first carrier and a second modulator for modulating a chrominance component of the video signal onto a second carrier, and a triax output port for outputting said modulated carriers to a triax cable. The first modulator is a quadrature modulator adapted to modulate luminance components of two video image lines simultaneously and in quadrature onto said first carrier. A receiver interface has a quadrature demodulator for restoring the luminance component.
摘要翻译： 用于在三轴电缆上传输视频信号的三端发射器接口包括视频信号输入端口，用于将在所述输入端口处接收的视频信号的亮度分量调制到第一载波上的第一调制器和用于调制色度分量的第二调制器 的视频信号输出到第二载波上，以及三端口输出端口，用于将所述调制载波输出到三线电缆。 第一调制器是适于将两个视频图像行的亮度分量同时并正交地调制到所述第一载波上的正交调制器。 接收机接口具有用于恢复亮度分量的正交解调器。
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