36 results about "YPbPr" patented technology

A device and a method for automatically discriminating formats of video signals input to a monitor and processing the respective signals in accordance with the identified formats are provided. The device automatically identifies whether signals input to the same input port are RGB type PC signals or YPbPr type HDTV signals and processes the signals in accordance with the identified formats. Therefore, users have only to install a single input port commonly used to receive PC signals and HDTV signals rather than installing separate input ports for separately receiving PC signals and HDTV signals.

A signal conversion apparatus, connected to one or more electronic apparatuses and a display device, mainly includes one or more input interfaces, a signal conversion unit, and an output interface. Each input interface is for connecting to an electronic apparatus and receiving signals therefrom. The input interfaces include analog interfaces and digital interfaces. The signal conversion unit is for receiving the signals in multiple formats from the input interfaces, and converting the signals, when necessary, into a predetermined format, which is supported by the display device. The predetermined format includes RF format, RCA format, S-Video format, YPbPr/YCbCr format, VGA format, MPEG format, DVI format, HDMI format, and so on. The output interface is for transmitting the signals from the signal conversion unit to the display device through a cable. The display device receives the signals from the output interface and displays corresponding information thereof.

The invention discloses a multi-format signal conversion device comprising a signal input module, a signal processing module and a signal output module, wherein the signal input module is used for collecting an external input signal, the signal processing module is connected with the signal input module and used for video signal format conversion processing of the external input signal, the signal output module is connected with the signal processing module and used for transmitting a signal which is processed by video signal format conversion to a signal transmission media. The multi- format signal conversion device supports multi-format signal input, and an analog video graphics array (VGA) signal, a composite video broadcast (CVBS) signal, a YPbPr signal, an S-video signal, a digital video interactive (DVI) signal and a high definition multimedia interface (HDMI) signal are compatible. Compatibility of signal input is good, and the multi- format signal conversion device and the display equipment are convenient for users to use.

The invention discloses digital television receiving equipment and a video data decoding method thereof. The hardware and the connection mode are that: a television high-frequency signal is applied to a television receiving front end, connected with an FIFO cache circuit board, and connected with an EMIF interface on a central processor; and finally, a 3Q9 plug on the central processor is connected with a YPbPr interface of the television, and a hard disk, an MMC card and a U disk are connected with a corresponding interface respectively. The data decoding method comprises the following steps of: (1) inputting a DVB-C wired television radio-frequency signal; (2) transferring a code stream to an inter-chip L2 upper buffer area by using EDMA for head information decoding; (3) if the head information is an inner macro block, calling IMG-mpeg2-vld-intra for decoding, and outputting the decoded IDCT coefficient; (4) if the head information is a non-inner macro block, calling MG-mpeg2-vld-inter for decoding, and outputting the decoded IDCT coefficient; (5) calling a library function IMG-idct-8x8-12q4 for IDCT, and performing motion compensation and frame rearrangement so as to acquire the decoded data; and (6) computing 1/2 pixel precision motion compensation in a motion compensation module by using an iMX processor in VICP.

The invention relates to a panel TV set which comprises a UOCIII circuit and a MST51X circuit; the UOCIII circuit is used for carrying out video decoding of received television signals; and the MST51X circuit is used for receiving the signals which are emitted by the UOCIII circuit and processing images. The panel TV set of the invention can receive multi-format television programs on a liquid crystal television through the circuits taking UOCIII plus MST51X as the core; AV, S-VIDEO, YPBPR, VGA, DVI, SCART and other signals can also be received and displayed on a liquid crystal screen; and the panel TV set can further process the corresponding accompanying sound signals of the video signals and sound on a loudspeaker.

The invention discloses a video signal conversion method for implementing a function of converting a VGA (Video Graphics Array)/YPbPr signal into an HDMI (High-Definition Multimedia Interface) signal through a single chip. The method has the advantages of relatively high compatibility, lower product cost and capability ofmeeting current market demands. The method comprises the following implementation steps: S1, converting an incoming VGA signal into a 24-bit RGB digital signal or a 24-bit YUV digital signal, a line synchronization signal and a field synchronization signal through a three-path 10-bit analog signal sampling module; S2, inputting the converted signals into a video processing module to perform color, brightness, saturation and chrominance adjustment, and finally inputting the adjusted signals into an HDMI signal transmission module to be encoded into HDMI signals in order to perform video output; and S3, reading specific information such as a model of HDMI receiving equipment and an optimal resolution by the HDMI signal transmission module through a wire rod according to the requirement of an HDMI protocol, and outputting a video format satisfying the HDMI receiving equipment.

The invention provides a set top box automatic energy-saving control method. The method includes the steps of monitoring an output end of an HDMI high-definition output module, so as to judge whether an HPD signal is received; monitoring an output end current I1 of a CVBS standard-definition output module, so as to obtain the variation situation of the output end current I1; and monitoring an output end current I2 of a YPbPr output module, so as to obtain the variation situation of the output end current I2, and setting a variation threshold value of the output end currents I1 and I2. According to the set top box automatic energy-saving control method and system and set top box provided by the invention, the output ends of the HDMI high-definition output module, CVBS standard-definition output module and YPbPr output module are monitored, control of functional modules of a set top box is performed according to the monitoring situation, and when corresponding outputs of the functional modules have no load, the corresponding modules are closed; and when the corresponding outputs of the functional modules are connected to a load, the corresponding modules are opened, thereby effectively improving the performance of saving power utilization of the set top box.

A multifunctional test signal generator/distributor for large-scale production of video products. The invention provides a test signal generator/distributor module. in allusion to problems of low automation degree, high labor cost and low testing efficiency and precision existing in large-scale production of video products such as televisions, tablet computers, DVD and the like, a test scheme with low cost, high efficiency and flexible configuration is provided. The multifunctional test signal generator/distributor supports various video interfaces and various resolutions of HDMI, DVI, VGA, DisplayPort, LVDS, YPbPr, YCbCr, composite video and the like, and can be used separately or used along with any automatic test machines. The multifunctional test signal generator/distributor is composed of multiple configurable modules, provides a prefabricated internal test signal or inputs a test signal from outside, also can download a custom test signal on line, and supports simultaneous test of at least four stations. The invention also provides an HDCP/EDID test function, and a test result is displayed on display equipment in the form of a small window.

The invention provides a universal converter capable of converting high definition into standard definition. The universal converter capable of converting the high definition into the standard definition comprises a high-definition multimedia interface (HDMI) video input device, an image processing device, a composite video broadcast signal (CVBS) output device, a video graphics array (VGA)/YPBPR output device, a power management device, an audio output device and a central control device, wherein the HDMI video input device is connected with the image processing device through a cable, the CVBS output device is connected with the image processing device through a cable, the VGA/YPBPR output device is connected with the image processing device through a cable, the audio output device is connected with the image processing device through a cable, and the central control device is connected with the HDMI video input device through a cable, is connected image processing device through a cable and is connected with the audio output device through a cable. The universal converter can meet the requirement of a user that the high definition is converted into the standard definition on site.

An apparatus and a method for gain adjustment for analog YPbPr signals are provided. The apparatus comprises a first clamping circuit, an analog-to-digital converter (ADC), and a gain calculator. The first clamping circuit clamps the lowest potential of a horizontal synchronization signal of a Y signal of an analog YPbPr signal to 0 V. The ADC converts the clamped Y signal from an analog signal to a digital signal and then outputs the digital signal. The gain calculator receives the actual peak-to-peak voltage of the horizontal synchronization signal from the ADC, and then calculates and sets the gain for the ADC according to the peak-to-peak voltage.

The invention provides a universal converter changing standard definition to high definition. The universal converter comprises a CVBS video input device, a YPBPR/VGA video input device, an image processing and video output device, a center control device, and a power management and audio processing device. The CVBS video input device, the YPBPR/VGA video input device, the center control device, the CVBS video input device and the YPBPR/VGA video input device are respectively connected with the image processing and video output device through cables. The converter can support various standard definition signal input and various resolution ratio output and meets requirements of users.

The invention discloses a method for setting channels accessed to a television while starting up. The method includes that an option is designed on an OSD (on screen display), the option includes a captioned selection bar for memorizing the channel before shutdown last time and captioned selection bars for all the channels of the television such as TV, AV1, AV2, S-VIDEO, VGA, HDMI1, HDMI2, YPbPr, USB and the like, a channel to be accessed to while starting up can be selected by a user, the MCU (microgrammed control unit) microprocessor of the television can memorize the content selected by the user into a memory after user selection, and the MCU microprocessor reads the memorized starting mode when the television is started, so that the television can accesss to a corresponding starting channel. Thus, the user can select and change the channel to be accessed to the television while starting up at will without changing the existing television hardware structure, so that the channel accessed to the television while starting up can appropriately meet user requirements.

The invention provides a high definition player, comprising a CVBS output port, an S-Video output port, a YPbPr output port, an HDMI output port, a VGA output port, a pair of stereo audio output ports, an S/PDIF optical fiber output port, a plurality of USB2.0 ports, an Ethernet port and a remote control reception port, wherein, the YPbPr output port consists of a Pb port, a Pr port, a Y port, anda C port, and each stereo audio output port consists of a left stereo audio output port and a right stereo audio output port. Various whole ports are integrated to ensure that the high definition player can be applied to ordinary television sets, high definition television sets, VGA displayers and ordinary audio systems, and USB port equipment and Ethernet equipment can be compatible with the high definition player which is controlled by a wireless controller.

Circuit for realizing high resolution and clear TV set in 1080P/60 format connected to decoding board includes following parts: high bandwidth and high speed switching chip connected to interface of YPBPR input end on the decoding board, sampling chip through series resistance and capacitance of cutting off DC coupled to the said switching chip, carrying out sampling operation and A/D conversion; digital process chip (DPC) connected to the sampling chip for transferring digital signal in 30BIT parallel data stream. DPC implements line and field general locking, line frequency normalization process, and D/A conversion, outputting R, G, B and HD, VD signals. High bandwidth and high speed switching chip is P15V330 type, sampling chip is MST9883 type or AD9883. The invention is applicable to high resolution and clear compatible TV set.

The invention relates to a system-level packaging technology for a VGA/YPbPr-to-HDMI interface module, and aims to reduce the size of the finished VGA/YPbPr-to-HDMI interface module, reinforce signal transmission, improve thermal property and electrical performance, and save cost by adopting the system-level packaging technology. The adopted technical scheme for solving the technical problems is as follows: the system-level packaging technology is adopted; a wire bond technology and SMT patch technology are combined; necessary modules and resistor and capacitor devices in a VGA/YPbPr-to-HDMI interface chip are arranged in a chip to be packaged and moulded in a stacked or tiled manner, so that the overall system function is realized thorough the single chip. The system-level packaging technology has the technical characteristics of capabilities of realizing multi-chip stacking and packaging, passive device packaging, and signal connection in the wire bond and SMT patch connecting ways.

The invention relates to the field of televisions, and discloses a ghost cancellation method of a polarized light three-dimensional (3D) liquid crystal display television (LCD TV). The ghost cancellation method of the polarized light 3D LCD TV concretely includes the following steps: first detecting whether a system works in a two-dimensional (2D) state or in a 3D state currently, if the system works in the 3D state currently, shutting down overscanning immediately, and invoking 3D parameters to complete 3D picture decoding; and if the system works in the 2D state, the system starting the overscanning immediately, and invoking 2D parameters to complete 2D picture decoding. The overscanning function is shut down in the 3D state to maintain the original ratio of the 3D image, the 3D image can be displayed on the polarized light LCD accurately, therefore ghost is effectively cancelled, and a user can watch vivid 3D videos on a Ypbpr channel and a video graphics array (VGA) channel.

The invention discloses a method for selecting a TV sound channel. The method comprises the following steps: S1: a CPU is used for detecting signal in real time to judge whether the signal is stable; S2: judgment is performed to see whether the current signal is a YPbPr/YCbCr signal, or a VGA signal or a DVI signal according to the detected horizontal and filed synchronizing ranges; S3: the detected signal is output by a corresponding channel and the corresponding signal sound channel is set as a current sound channel; S4: the information of a sound output channel stored in an EERPOM is read to judge whether the sound output channel changes or not; and S5: the content output by the sound output channel is transmitted to the current sound channel for outputting the sound. Compared with the prior art, in the method, an AV sound is output to a loudspeaker by a software process when the AV sound is not in an AV channel, so as to ensure that users can simultaneously watch the YPbPr/YCbCr signal, the VGA signal, the DVI signal, and the like, while hearing the sound of corresponding image content.