1
Koozoo Nakamura, Nagaharu Hamada, Masaharu Tadauchi, Yasuyuki Kozima, Kunihiro Sakata: Control method of vertical scan speed. Hitachi, Antonelli Terry & Wands, March 22, 1988: US04733308 (149 worldwide citation)

When a document and a recording medium are moved in a vertical scanning direction to read the document and record signals on the recording medium, the read signals are stored in a line buffer memory. The present invention changes over hysteretically a high speed vertical scan mode and a low speed ve ...


2
Norio Murayama, Yukitaka Hayashi, Nagaharu Hamada, Toshitaka Hara: Data display control system with plural refresh memories. Hitachi, Craig and Antonelli, April 29, 1980: US04200869 (50 worldwide citation)

A data display control system for displaying respective data memorized in a plurality of refresh memories which is operable in various display modes including a selective picture display, a superimposed picture display and a shifting picture display. Individual data memorized in respective refresh m ...


3
Yoji Nishio, Toshitaka Hara, Nagaharu Hamada: Microprocessor controlled display system. Hitachi, Craig & Antonelli, December 2, 1980: US04237543 (48 worldwide citation)

A display system for displaying information in response to an input video signal comprises a data control unit including a microprocessor and a microprogram memory for storing a program for the microprocessor, a refresh memory unit connected to the data control unit through an address bus and a data ...


4
Masahiro Iwamura, Nagaharu Hamada, Schigeo Kuboki, Kenichi Fukushima: CRT Display apparatus with changeable cursor indicia. Hitachi, Craig & Antonelli, October 14, 1980: US04228430 (36 worldwide citation)

Disclosed is a raster scanning type CRT display apparatus having a microprogrammed processor for primarily controlling the input and output of data to and from an external information source. This CRT display apparatus comprises a plurality of cursor controlling registers having their contents set b ...


5
Nagaharu Hamada: Microprocessor controlled CRT display system. Hitachi, Craig & Antonelli, August 1, 1978: US04104624 (35 worldwide citation)

A display system is disclosed wherein a refresh memory is divided into a plurality of blocks of bytes so that a micro-processor can access the blocks byte by byte while display data of the plurality of blocks are assembled by word so that the display data are accessed word by word. The access by the ...


6
Masahiro Iwamura, Nagaharu Hamada, Toshitaka Hara, Nobuo Sato: Raster scan type CRT display system having an image rolling function. Hitachi, Craig & Antonelli, December 12, 1978: US04129859 (33 worldwide citation)

A raster scan type CRT display system is disclosed which has a randomly accessable refresh memory. The display system comprises column and row start address registers for defining a read start address for the refresh memory, column and row address counters for counting the contents of the column and ...


7
Masahiro Iwamura, Nagaharu Hamada, Yukitaka Hayashi: Light pen detection system. Hitachi, Craig & Antonelli, December 14, 1976: US03997891 (25 worldwide citation)

A light pen detection system used for a display system using a cathode ray tube (CRT) in which the operation for detecting the character display position on the CRT face is started when the operation switch of the light pen is turned on, and repeatedly progresses in synchronism with the picture repe ...


8
Nagaharu Hamada, Toshitaka Hara, Mitsuo Kikkawa, Yukitaka Hayashi: Trend graph display system. Hitachi, Craig and Antonelli, December 22, 1981: US04307393 (17 worldwide citation)

A cathode ray tube having a viewing screen on which time points represented by a plurality of points spaced from one another with a predetermined time interval are displayed in the raster direction, while display quantities of trend graphs are displayed as functions of the time points in the directi ...


9
Yasuo Minowa, Toshitaka Hara, Nagaharu Hamada: Computer systems having a common memory shared between a central processor and a CRT display. Hitachi, Craig & Antonelli, May 29, 1979: US04156904 (16 worldwide citation)

A computer system comprises a central processor unit, a single memory apparatus and an external processor unit which is adapted to read out N bytes of data in each period of T.sub.o. The number n of data remaining to be processed after a time elapse T.sub.1 (T.sub.1 < T.sub.o) from the beginning of ...


10
Yasuyuki Kojima, Nagaharu Hamada, Yasuro Hori: Thermal recording apparatus. Hitachi, Antonelli Terry & Wands, March 10, 1987: US04649401 (13 worldwide citation)

A thermal recording apparatus has a thermal recording head constituted by heating elements disposed in parallel, a driver circuit actuated in response to a recording signal, and a control circuit which controls the driver circuit. The apparatus is arranged such that, when data in a memory which stor ...