36 results about "YPbPr" patented technology

A signal transmission system according to the present invention, in one embodiment comprises: a signal transmission unit that includes a MPEG decoder which receives digital broadcasting and outputs a luminance signal Y and two color difference signals PB / PR, and a transmission path encoding circuit which encodes the YPBPR outputted from the MPEG decoder into signals in the forms suited to a transmission path and transmits the encoded signals; and a signal reception unit that includes a transmission path decoding circuit which receives the encoded YPBPR and decodes them, a Y processing circuit which processes the decoded luminance signal Y, a chrominance processing circuit which processes the respective decoded color difference signals PB / PR, a signal conversion circuit which converts the YPBPR outputted from the Y processing circuit and the chrominance processing circuit into RGB signals, and a display device which displays the RGB signals. According to the so-configured signal transmission system, it is possible to realize a signal transmission system in which hardware configurations of the video signal transmitting end and receiving end can be simplified.

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 double-sided video monitor has a pair of display panels mounted back-to-back. The panels are capable of displaying same or separate video signals at the same time. Each panel has an inset viewing area capable of displaying an additional video signal. Video input signals are received through a variety of connection protocols including Digital Video Interface (DVI), S-Video cable, YPbPr cable, composite cable, and VGA cable. Audio output devices are provided for each panel n receiving input from an audio harness. The output devices provide sound synchronized to either display panel or inset viewing area. The panels can be operated independently by individual controlling means, which include a plurality of control buttons for volume adjustment, picture adjustment, activation, deactivation, and so on. The monitor may have a single power supply providing power to one or more monitor controllers. The monitor can also be connected to a laptop, or similar computing device.

The invention relates to an input channel and method for progressive and interleaved color difference component signals (i.e. YPbPr / YCbCr) in TV, proposing a progressive / interleaved video signals shared input channel and method, including the following steps: e inputting video signals to a TV receiver from YPbPr / YCbCr input terminals; judging the form of the input video signals is a progressive / interleaved form of video signals; according to the judged result, controlling on or off of YPbPr or YCbCr channel to make the signals pass through corresponding input signal processing circuits, and finally sending them into video processing circuits for further processing. By automatic identification with the TV receiver, for different input video signals YPbPr or YCbCr, the invention only needs a channel to be able to implement watching component video signals, thus reducing the cost, simple in the circuit and compact and convenient to use.

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.

The invention discloses a video encoding unit and a realizing method thereof. The video encoding unit comprises a DVI (digital visual interface) chip and the like, wherein the DVI chip and an LVDS (low-voltage differential signaling) video interface chip are connected with a first bus selective switch, the DVI chip, the LVDS video interface chip, an RGB (red, green, blue) video interface chip and a YPbPr video interface chip are connected with a CPLD (complex programmable logic device) chip, the RGB video interface chip and the YPbPr video interface chip are connected with a second bus selective switch, the first bus selective switch, the second bus selective bus, the CPLD chip and an ASIC (application specific integrated circuit) chip, and the ASIC chip is connected with a bridge connection chip. The video encoding unit has the characteristics of easiness in development, low power consumption, high performance and the like, can totally meet requirements of a vehicle-mounted high-definition video recording system.

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.

A multi-format video signal acquisition and analysis card is composed of a video signal input connector, a power interface (9), a display (11) and a casing (10), and the casing (10) is equipped with a high-definition YPbPr video signal input connector (5 ), high-definition VGA video signal input connector (6), standard definition S-Video video signal input connector (7), standard definition Video video signal input connector (8), and a connector for exchanging data with the computer and input power ( 9); display (11) and buttons (12) are installed on the front of the shell (10); a high-definition video signal AD conversion chip (1) and a standard-definition video signal decoding chip (2) are installed on the circuit board in the shell (10) , a data format processing conversion chip (3), a signal processing and interface chip (4). The invention has the advantages of simultaneously collecting and analyzing standard-definition Video signals, standard-definition S-Video video signals, high-definition VGA video signals, and high-definition YPbPr video signals, and is small in size and light in weight, and can be conveniently used in different occasions.

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 theprior 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.