Evgeniy Leyvi - Fair Lawn NJ, US Joseph K. Masters - Mahopac NY, US
Assignee:
Koninklijke Philips Electronics N.V - Eindhoven
International Classification:
H04N007/01
US Classification:
348453, 348469, 348441, 348472
Abstract:
A system and method allows a high-bandwidth serial or parallel digital video broadcast data signal to be monitored on a low-cost digital display device such as a computer monitor. The system includes means for extracting horizontal and vertical synchronization information and clock from the digital video broadcast data signal, and a transmitter converting the digital video data signal and the horizontal and vertical synchronization information and the clock into a Digital Visual Interface (DVI)-compliant digital video data signal. Beneficially, the system also includes: a color space converter converting the digital video broadcast data signal from a first color format to a second color format; a serial video data receiver receiving a serial digital video broadcast data signal and providing parallel non-return to zero inverted (NRZI) digital video data and a clock, synchronized to the parallel NRZI digital video data; an NRZI descrambler receiving the parallel NRZI digital video data and providing therefrom framed parallel digital video data; and a scan converter converting the digital video data signal into a digital video format suitable for display on the digital display device.
Device And Method For Interfacing Digital Video Processing Devices
A digital video interface device interfaces a digital video signal transmitted from a first, source, digital video processing device to a plurality of second digital video processing devices. The digital video interface device receives a digital video signal having a transition minimized differential signaling (TMDS) format, translates the received digital video signal to a second signaling format, buffers the translated digital video signal to produce a plurality of substantially identical buffered translated digital video signals, and translates each of the plurality of substantially identical buffered translated digital video signals back to the TMDS format. The digital video interface device includes a first translator receiving a TDMS digital video signal and translating the received TMDS signal to a second signaling format, a buffer receiving the translated digital video signal and outputting a buffered translated digital video signal, and a second translator translating the buffered translated digital video signal back to the TMDS format.
A video processing system directly upsamples cinema material to a video frame rate that is a multiple of the fundamental cinema frame rate of 24 frames per second. A video display processor is configured to directly accept video images at a variety of frame rates, including the cinema frame rate of 24 fps. A frame buffer is suitably configured to accept the video images at the recorded frame rate and provides a corresponding video stream at a frame rate that is an integer multiple of the recorded frame rate. By providing the video stream at this frame rate, the anomalies and artifacts caused by non-integer or non-uniform upsampling are avoided. Correspondingly, a video processor is configured to provide the video images at standard television resolutions, but at the original recorded frame rate, to minimize temporal anomalies and artifacts.
Color Temperature Compensation For Digital Display System With Color Wheel
Richard C. Meyer - Plano TX Gerhard P. Deffner - Dallas TX Austin L. Huang - Dallas TX Joseph K. Masters - Wylie TX
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H04N 931
US Classification:
345150
Abstract:
A method of adjusting color temperature of images displayed by a display system (10) whose images are based on sequential pixel data and are filtered with a color wheel (15, 15', 15"). The relative display times for each color are adjusted to result in a corresponding adjustment of color temperature. In a first embodiment (FIG. 2), the size of the color wheel's segments are changed as well as the display times for data corresponding to each segment. In a second embodiment (FIG. 3), the display times for data corresponding to one or more segments are decreased with a black display time to fill in the difference.
William R. Breithaupt - Dallas TX Joseph K. Masters - Wylie TX Donald L. Hicks - The Colony TX
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
G02F 100
US Classification:
250233
Abstract:
A method of generating a color wheel index signal for use in a display system (10) that uses a spatial light modulator (14) and a color wheel (15). The index signal is compared to a reference signal associated with an input image signal so that the color wheel and the data being displayed can be synchronized (FIG. 2). The index signal is generated by placing a color-sensitive photodetector (14a) in close proximity to the spatial light modulator (14). Light filtered through the color wheel (15) illuminates both the spatial light modulator (14) and the photodetector (14a). The photodetector (14a) responds to color transitions in the filtered light, generating a pulse in response to each transition to the color to which it is sensitive.
Name / Title
Company / Classification
Phones & Addresses
Joseph Masters System Engineer J C Penney Company Inc
300 California Street 4, San Francisco, CA 94104 6501 Americas Pkwy Ne , Albuquerque, NM 87110 1209 Orange Street , Wilmington, DE 19801 123 E Marcy , Santa Fe, NM 87501 (505)8557500
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