1
Herbert Dym, Morris Krakinowski: Capacitive two dimensional tablet with single conductive layer. International Business Machines Corporation, W S Robertson, May 2, 1978: US04087625 (129 worldwide citation)

A new capacitive tablet has a single layer in which electrodes provide capacitive coupling with a pen to produce signals that correspond to the X and Y dimensions of the position of the pen on the tablet. The electrodes in the single layer are in the form of pairs of complementary shaped, closely ad ...


2
Salvatore A Calta, Thomas A Gregg, Leon Skarshinski, Richard Strangwayes: Byte count handling in serial channel extender with buffering for data pre-fetch. International Business Machines Corporation, W S Robertson, September 12, 1989: US04866609 (90 worldwide citation)

A channel subsystem with a conventional serial extender link that causes communications between a channel and a control unit to be delayed by the additional time to transmit a message in one direction and to transmit an acknowledgement in the other direction. The channel subsystem also has a buffer ...


3
Gregory M Chrysler, Richard Chao Fan Chu, Robert E Simmons: Immersion cooled circuit module with improved fins. International Business Machines, W S Robertson, August 23, 1988: US04765397 (90 worldwide citation)

A circuit module that contains a planar array of chips has an improved fin assembly that transfers heat to a liquid coolant that is circulated through the fins in a single pass so that there is a tendency for the upstream edge of the fins to run cold and the downstream edge to run hot. The module ca ...


4
Jack H Bailey, Gerald H Ottaway: Video player/recorder with non-linear mark length modulation. DiscoVision Associates, W S Robertson, September 9, 1980: US04222072 (62 worldwide citation)

In a video disk system a mark along a record data track is modulated in length to represent multi-bit binary code blocks of a first length (such as three or fout bits) and the player system associated with the disk operates in multi-bit code blocks that are generally longer (for example eight bits) ...


5
Jack H Bailey, Gerald H Ottaway: Video player and/or recorder with Hadamard transform. DiscoVision Associates, W S Robertson, July 1, 1980: US04210931 (59 worldwide citation)

An apparatus for performing a Hadamard transform on video data for compression of data to be recorded and decompression of data read from a record for display achieves the necessary high rate by means of two or more adders and two subtractors operating in parallel. A store that holds the data during ...


6
Brian B Moore: System for digitized voice and data with means to compensate for variable path delays. International Business Machines Corporation, W S Robertson, August 27, 1985: US04538259 (48 worldwide citation)

In a communications system in which voice is transmitted as packets of digitized samples, a receiving station delays the output of the first packet in a way that compensates for wide variations in the intervals at which successive packets are received. According to one feature of this system, a firs ...


7
Roger L Cormier, Robert J Dugan, Richard R Guyette, Ronald L Hankison, Ming C Hao, Arthur L Levin, George A McClain, Paul J Wanish, Carl Zeitler Jr: Method and apparatus for measurements of channel operation. International Business Machines Corporation, W S Robertson, January 29, 1985: US04497022 (48 worldwide citation)

A channel for a data processing system is provided with a time of day clock that is synchronized with the time of day clock of the associated central processor. Both the central processor and the channel processor record times of particular events, and the channel uses these times to calculate two t ...


8
Jerry C Shaw, Theodore G VanKessel: Graphics display with improved window organization. International Business Machines, W S Robertson, July 1, 1986: US04598384 (41 worldwide citation)

A display system has a driver program for displaying alphanumeric characters and a driver program for displaying graphics. When a graphics window is opened, a program in the operating system establishes a control block containing a code that has been made unique within the user's program. For operat ...


9
Stephen M Matyas, Carl H W Meyer, Walter L Tuchman: Digital signature system and apparatus. International Business Machines Corporation, W S Robertson, June 3, 1980: US04206315 (41 worldwide citation)

A digital signature machine provides a simplified method of forming and verifying a signature that is appended to a digital message. A sender transmits a signature with the usual signature keys and with validation table entries that correspond to the unsent keys and with the compressed encoding of t ...


10
Robert S Capowski, Terrence K Zimmerman: Priority circuit for channel subsystem having components with diverse and changing requirement for system resources. International Business Machines, W S Robertson, June 23, 1987: US04675812 (40 worldwide citation)

A priority circuit handles requests by three components of a data processing system for access to several resources of the system that can be accessed one at a time on each operating cycle of the system. A logic circuit receives requests by the requesters and grants access to one requester on a prio ...