Samsung Electronics Co., Ltd.

Dong-il Song

Hae-joo Jeong

Jung-pil Yu

Eui-jun Park

Jin-Hee Jeong

Jong-hun Kim

Choon-sik Jung

Hee-beom Kang

Byeungwoo Jeon

Myeong-hwan Lee

Han-il Ko

Yong-je Kim

Ju-ha Park

Jong-gu Jeon

Jong Wook Park

Moon-cheol Kim

Tae-Kwon Yang

A digital broadcasting transmitter, a turbo stream processing method thereof, and a digital broadcasting system having the same. The digital broadcasting transmitter includes a first compressor, forming a normal stream by compressing audio and video signals in a first compression format, a second compressor, forming a turbo stream by compressing the audio and video signals in a second compression format, a transport stream (TS) constructor, compressing the turbo stream in an H.264 format and forming the dual transfer stream by multiplexing the normal stream and the turbo stream, and a TS processor, robustly processing the dual transfer stream transmitted from the TS constructor, thus enhancing the transmission efficiency.

Digital broadcasting transmitter, turbo stream processing method thereof, and digital broadcasting system having the same

A method of formatting a digital broadcast transport stream packet, a digital broadcast transmitter, and a signal processing method thereof, includes constructing a transport stream packet that includes a stuffing region for an insertion of a known supplementary reference signal (SRS) data therein, randomizing the packet that includes the stuffing region is randomized, and the SRS data is inserted into the stuffing region of the randomized packet. Adding a parity for an error correction to the packet into which the SRS data has been inserted, the packet to which the parity has been added is interleaved, and a trellis encoding of the interleaved packet is performed. Inserting a segment sync signal and a field sync signal into the trellis-encoded packet, and a vestigial side band (VSB) modulation and an RF conversion of the packet are performed to transmit the VSB-modulated and RF-converted packet.

Method for formatting digital broadcast transport stream packet for improved receiving performance, digital broadcast transmitter, and signal processing method thereof

A method of enhancing a color temperature of a color image includes calculating gains for input image signals based on a predetermined gain function. A first offset value corresponding to a change in a pedetermined color temperature of output signals is calculated. A second offset value is calculated based on the gains and the first offset value. The second offset value is added to a B signal of the output signals. A compensation gain is calculated in consideration of intensity of the B signal to which the second offset value is added. The compensation gain is added to a G signal. Thus, a desired color temperature can be obtained regardless of the intensities of R, G, and B signals.

Apparatus for and method of enhancing color temperature in color image

An apparatus and method for transferring digital versatile disc (DVD) information is provided. This apparatus includes a stream format converter for providing a first stream by converting the program stream format of audio and video information read from the DVD into a transport stream format. A re-encoder is included, for providing a second stream by overlaying video information read from the disc with subpicture information read from the DVD and re-encoding the overlaid information using a predetermined compression encoding scheme for image information. A stream selector is included, for selecting either the first or second stream according to the requirements of a user, the bandwidth of a transmission channel, and the information processing capability of an apparatus for receiving information, and transferring a selected stream to the apparatus for receiving information via a transmission channel. Accordingly, information obtained using a selected optimal transfer method, that is, MPEG-2 full re-encoding, MPEG-2 I picture re-encoding, DV format re-encoding, or conversion of information stored in an original DVD into an MPEG-2 TS packet, is transferred. Therefore, even if DVD information is transferred to any apparatus, it can be viewed.

Apparatus and method for transferring digital versatile disc information

A camcorder comprises a video camera responsive to light images for supplying video signals on a frame by frame basis; circuitry responsive to the video signals supplied by the video camera for generating segments of a transport stream, which segments are susceptible to decoding by an MPEG-2 decoding apparatus; and a recorder for electromagnetically recording the transport stream as magnetic variations along the surface of a magnetic recording medium.

Digital camcorder apparatus with MPEG-2 compatible video compression

In a receiver having both an analog video service mode and a digital video mode, when the analog video mode is selected according to a mode selection signal indicating that a television channel is for the analog video mode or the digital video mode, a large-capacity memory used for the digital video-decoding may also be used as a frame memory for Y/C separation and post-processing, for enhancing picture quality, improving the efficiency of the memory and reducing the cost of a system.

Receiver having analog and digital video modes and receiving method

A video signal processing apparatus for use in a two-panel liquid crystal projector includes a preprocessor for receiving primary color video signals and for generating a first luminance signal having only a high frequency component and a first plurality of color signals in which the high frequency component is removed, and a matrix circuit for receiving the first luminance signal and the first plurality of color signals, and for generating a second luminance signal and a second plurality of color signals using a minimum one of the first plurality of color signals as a reference signal, wherein each of the second plurality of color signals is generated by subtracting the reference signal from a respective first color signal. The second luminance signal and the second plurality of color signals generated by the matrix circuit are used for light modulation by a luminance signal liquid crystal panel and a color signal liquid crystal panel, respectively. Thus, an unnatural image phenomenon in an image displayed with regard to the primary color video signals is removed, and resolution and brightness can be improved. Further, disharmonization between the luminance signal component and the color signal component can be prevented in view of the optical and signal processing conditions.

Growing community of inventors

Suwon-si, South Korea

Dong-il Song