T
Takaji Ohtsu
Researcher at Sony Broadcast & Professional Research Laboratories
Publications - 9
Citations - 177
Takaji Ohtsu is an academic researcher from Sony Broadcast & Professional Research Laboratories. The author has contributed to research in topics: Signal & Electronic circuit. The author has an hindex of 5, co-authored 9 publications receiving 177 citations.
Papers
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Patent
Liquid crystal matrix display device
Mitsuo Soneda,Takaji Ohtsu +1 more
TL;DR: In this paper, a liquid crystal matrix display device has a plurality of display elements arranged in an X-Y matrix pattern, and the vertical transmitting lines are connected to all of the display elements of each column, and horizontal transmitting lines were connected to each display element of each row.
Patent
Image pickup apparatus
TL;DR: In this article, a current mirror circuit, formed of an input transistor and an output transistor with first current-carrying electrodes joined together to a voltage reference point and with control electrodes connected together, amplifies the signal current.
Patent
Image pickup apparatus with gain controlled output amplifier
TL;DR: In this article, a gain-controlled current amplifier is employed to give the output video signal a good S/N ratio, in which a two-dimensional array of picture element units each formed of a photo sensitive element and a gating element is employed.
Patent
Memory type insulating gate field effect semiconductor device
TL;DR: In this paper, a memory type insulated gate field effect semiconductor device including a semiconductor layer of one conductivity type, a source region of the opposite conductivities type formed in the surface of the semiconductor layers, a drain region of a different conductivities was formed by a gate electrode and a gate guarding portion intermediate between the two regions.
Patent
Large amplitude pulse generating circuits
TL;DR: In this paper, a pulse generating circuit comprises a first series connection of a first switching element (3:13) and a second switching element(4), a second series connection connecting point between the first and second switching elements, an amplifying element (7) having input and output terminals connected to both ends of the capacitive element (5), respectively, and a fourth switching element connecting to the output end of the amplifier (7), and is supplied with a first input signal varying in level through the control terminals of the first, second, and third switching elements (4,