Mauro DiDomenico - Bernardsville NJ Shobha Singh - Summit NJ LeGrand G. Van Uitert - Morristown NJ
Assignee:
Bell Telephone Laboratories, Incorporated - Murray Hill NJ
International Classification:
G02F 117
US Classification:
350357
Abstract:
Display devices are described in which certain structural features prevent cross-talk effects between individual display elements. This ensures sharp delineation between individual display elements which promotes high contrast and sharp displays. These structural features are particularly advantageous for multiplexed display systems so as to simplify circuit arrangements and ensure sharp, high-contrast displays.
Stabilization Circuit For Radiation Emitting Diodes
Bernard Collins De Loach - Murray Hill NJ Mauro DiDomenico - Basking Ridge NJ
Assignee:
Bell Telephone Laboratories, Incorporated - Murray Hill NJ
International Classification:
H01S 313
US Classification:
331 945S
Abstract:
A particularly important factor limiting the reliability of diode lasers is the catastrophic mirror damage which occurs when the radiated output exceeds a critical value. Experience has shown that this occurs as a result of fluctuations in the drive current, especially in high efficiency diodes. To avoid such damage, a portion of the output radiation from a diode laser, located in the collector circuit of a common emitter drive transistor, is coupled back to a photodetector, located in the base-emitter circuit of the transistor. The resulting negative feedback tends to stabilize the overall operation of the device and maintain the maximum radiated power within safe limits.
A system and method of delivering video on demand includes a web site for receiving customer requests for video content, locating the requested content on one of a plurality of distributed video servers, and arranging the located content to be distributed to the customer's set top box via a broadband connection.
A system and method of delivering video on demand includes a web site for receiving customer requests for video content, locating the requested content on one of a plurality of distributed video servers, and arranging the located content to be distributed to the customer's set top box via a broadband connection.