JPH0272034U

JPH0272034U -

Info

Publication number: JPH0272034U
Application number: JP1988152077U
Authority: JP
Priority date: 1988-11-22
Filing date: 1988-11-22
Publication date: 1990-06-01
Anticipated expiration: 2003-11-22
Also published as: JPH079462Y2

Description

[Brief explanation of drawings]

第１図は本考案の送信装置及び受信装置の概要
を示す図、第２図は本考案の送信装置の実施例の
回路ブロツク図、第３図は本考案の送信装置の無
線送信回路の実施例の回路ブロツク図、第４図は
本考案の受信装置の実施例の回路ブロツク図であ
る。１……送信装置、２……展示品、３……受光装
置、４……信号処理回路、５，３０……記憶装置
、６，３１……無線送信回路、７，１４……アン
テナ、８……電波、９……受信装置、１０，２３
……発光素子、１１……光信号、１２……スイツ
チ、１３……選択スイツチ、１５……ヘツドホン
、２１……受光素子、２４……展示コード発生回
路、２５，４４……検波回路、２６，４５……Ａ
／Ｄ変換回路、２７，４７……デコード回路、２
８……加算回路、２９……中央演算処理回路、３
３，４８，５５……Ｄ／Ａ変換回路、３４……発
信回路、３５，５６……変調回路、４１……受信
再生部、４６……判別回路、５０……ヘツドホン
ジヤツク、５１……光信号発生部、５２……識別
コード発生回路、５３……エンコード回路。 Fig. 1 is a diagram showing an overview of the transmitting device and receiving device of the present invention, Fig. 2 is a circuit block diagram of an embodiment of the transmitting device of the present invention, and Fig. 3 is an implementation of the wireless transmitting circuit of the transmitting device of the present invention. Example Circuit Block Diagram FIG. 4 is a circuit block diagram of an embodiment of the receiving apparatus of the present invention. 1... Transmitting device, 2... Exhibit, 3... Light receiving device, 4... Signal processing circuit, 5, 30... Storage device, 6, 31... Radio transmitting circuit, 7, 14... Antenna, 8 ...Radio wave, 9...Receiving device, 10,23
...Light emitting element, 11 ... Optical signal, 12 ... Switch, 13 ... Selection switch, 15 ... Headphone, 21 ... Light receiving element, 24 ... Exhibition code generation circuit, 25, 44 ... Detection circuit, 26 ,45...A
/D conversion circuit, 27, 47... decoding circuit, 2
8...Addition circuit, 29...Central processing circuit, 3
3, 48, 55... D/A conversion circuit, 34... Transmission circuit, 35, 56... Modulation circuit, 41... Receiving and reproducing section, 46... Discrimination circuit, 50... Headphone jack, 51... Optical signal generation section, 52...Identification code generation circuit, 53...Encoding circuit.

Claims

[Claims for Utility Model Registration] (1) A light-receiving device installed near each exhibit to receive an optical signal containing a predetermined identification code from a receiver, and a description corresponding to each of the exhibits. a storage device that stores contents; a readout circuit that reads explanatory contents corresponding to the exhibit item for which the light receiving device has received an optical signal from the storage device; and a demodulation circuit that demodulates the optical signal received by the light receiving device; A transmitting device comprising: a wireless transmitting circuit that adds the identification code woven into the optical signal demodulated by the demodulating circuit to the explanation content read by the reading circuit, and wirelessly transmits the added content to the receiving device. (2) a light-emitting element that generates an optical signal to be sent to a transmitting device; a drive circuit that drives the light-emitting element and causes the optical signal to include a predetermined identification code;
A receiving device comprising: a switch that turns on and off the driving circuit; a receiving circuit that wirelessly receives explanation content incorporating the identification code from the transmitting device; and a reproducing circuit that reproduces the explanation content received by the receiving circuit. (3) The receiving device according to claim 2, further comprising a selection switch for causing the optical signal to include a signal for selecting a necessary explanation content from among various explanation contents.