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Garcia Serafin Jose Eleazer Jr, Chisholm Douglas Roderick, Kalman Dean Alan, Padgett Russell Stephen, Yoder Robert Dean: Computer interface circuit.. Ibm, May 22, 1991: EP0428330-A2 (20 worldwide citation)

A plurality of specialized controllers, e.g. 202, 204 & 206, each one adapted to control a particular type of data transfer operation, control the flow of data between a system bus 104 and a local bus 106 on a computer adapter card 102. When the Direct Memory Access DMA controller 202 is controlling ...


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Padgett Russell Stephen, Chisholm Douglas Roderick, Garcia Serafin Jose Eleazar Jr, Alvarez Rafael, Kalman Dean Alan, Yoder Robert Dean: Extended addressing circuitry.. Ibm, May 22, 1991: EP0428329-A2 (2 worldwide citation)

A selected address within one of two segments of a memory space (124) of a second address/data bus (116), can be accessed from a first bus (102) through one of two data registers (136 and 138). In addition, the location of the two segments within the memory space of the second bus is selectable thro ...


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Rivero Jose Louis, Padgett Russell Stephen, Wulf James Christian, Ferrier Robert Bedford: Device for combining cellular telephone call signal and pstn call signal. Internatl Business Mach Corp &Lt IBM&Gt, March 8, 1996: JP1996-065412

PURPOSE: To provide a common call signal from both a cellular telephone network and a directly connected PSTN network to a modem for a personal communication device. CONSTITUTION: This call detecting device sends a signal to a modem 35 in the personal communication device. A detector for detecting a ...