JPS63106241U

JPS63106241U -

Info

Publication number: JPS63106241U
Application number: JP1986202314U
Authority: JP
Priority date: 1986-12-24
Filing date: 1986-12-24
Publication date: 1988-07-09

Description

[Brief explanation of the drawing]

第１図は本考案に係る光による情報の空間伝送
装置の親ユニツトにおける一実施例を示す説明図
、第２図は同じ実施例の電気回路を示すブロツク
図、第３図は従来例を示す説明図、第４図は従来
例の電気回路を示すブロツク図である。１……親ユニツト、２……発光素子、３……受
光素子、４ａ〜４ｄ……前置増幅器、５……判定
回路、５１ａ〜５１ｄ，５２ａ〜５２ｄ……選択
回路、６……復調器、７……出力回路、８ａ〜８
ｄ……出力増幅器、９……変調器、１０……入力
回路。 Fig. 1 is an explanatory diagram showing one embodiment of the parent unit of the optical information spatial transmission device according to the present invention, Fig. 2 is a block diagram showing the electric circuit of the same embodiment, and Fig. 3 shows a conventional example. The explanatory diagram, FIG. 4, is a block diagram showing a conventional electric circuit. 1... Parent unit, 2... Light emitting element, 3... Light receiving element, 4a to 4d... Preamplifier, 5... Judgment circuit, 51a to 51d, 52a to 52d... Selection circuit, 6... Demodulator , 7... Output circuit, 8a-8
d...Output amplifier, 9...Modulator, 10...Input circuit.

Claims

[Scope of utility model registration request]

a parent unit disposed on the ceiling and having a receiving section in which a plurality of light receiving elements are arranged in a substantially circular shape, and a transmitting section in which a plurality of light emitting elements are similarly arranged in a substantially circular shape;
In the spatial information transmission device by light, which is arranged on the floor and consists of a child unit having a receiving section and a transmitting section, the parent unit is connected to all of the plurality of light receiving elements of the receiving section, and from the output thereof. It has a determination circuit that always determines the direction of transmission from the child unit, and a two-system selection circuit that selects each of the light receiving element and the light emitting element according to the determination of the determination circuit, and the selection circuit includes: When receiving, only the output of the light receiving element of the receiving section corresponding to the direction of the child unit is decoded, and when transmitting, only the light emitting element of the oscillating section corresponding to the direction of the child unit is driven. A spatial transmission device for information using light.