SU1392553A1 - Opto-fibre keyboard - Google Patents

Abstract

The invention relates to automation and computing and may be used to enter information into control or computing systems. The purpose of the invention is to increase the reliability of the keyboard and expand its scope. The keyboard contains a light source 1, a coupler 2, optical fibers 3, photodetectors 7-9, clavier heads 10, in which reflectors from tripel-prisms 1 1 are located And lenses 12, return springs 13, body 14, transducer. 16. codes. 2 consists of a beam splitter 17 and a lens 18. The light guides 3 are divided into / 2; . And ..I | groups, each of which is optically coupled via coupler 2 to one of the photoreceivers 7-9. The ends of the optical fibers 3, located at the key heads 10, are offset one relative to the other by a small amount along the optical axis of the reflector. Each key head 10 is located no more than one light guide 3 from each group. When the key is pressed, the light reflected by the trigger prism 11 and the lens 12 is successively focused on the ends of the optical fibers 3 located along the optical axis of the reflector. As a result, a sequence of code pulses interleaved relative to each other appears in time at the outputs of photon-receivers 7-9. The code converter 16 converts this sequence into a standard code. When the keyboard head is released, the sequence of pulses corresponding to this key is issued in the reverse order. This makes it possible to determine the moment of release of the pressed key, in which the 16-code-shaped code generated by the transducer takes place. 3 zn f-ly, 2 ill. (L 2 8 with (X N5 01 SL CO FIG

Description

The invention relates to automation and computing and can be used to enter information into a control. g yushi i; 1i Bychis; | itelnye systems.

He. ib of the invention povejenija reliability of the keyboard and expanding the scope of its application by providing a random architecture of the location of the keyboard

FIG. I shows a functional keyboard keyboard; pas figs. 2 scheme. P) eobravodtel codes.

Keyboard (FIG. I) Sole | 1zhit

Nick

the coupler z, in the military law cases 3, which are in d) 4 fi, the receivers 7 9, c.1 avip1yye go.yuvki 1 (1, in which x are located oTjj.-i / Ka gel1, from triple prism 11 and: 1Inza 12. spring 13 return, ko () nus 14, Kelshy 15 n. yukonnyh sun-sun) D (} B, connected to K.iap.nniin.iM 1h dexter, converter lij codes, updated : 1–17, objective 18, bundle 19, uniting groups of optical fibers.

The code converter (Fig. 2) is live pulse generator 20 22, registers 23 25 1 () 1111Ы, set element 26), comparator 27, element OR, nose l (nyl l memory (ROM) 29.

Keyboard works with. The next is about).

Each k; 1avi1111 is rigidly connected to a reflector in the form of successively installed triple-prism II and lens 12. The KHHnia meehapically connected through the spring 1.3 with the body 14. Opposite the lens 12 along its optical axis are placed the ends 15 fiber-py.x fiber (.) in 3, recruited from 4,

the second 5 L th 6 1 runes of fiber optic fiber (in, no more than one from each group. Moreover, the same set) of optical fibers 3 differ from one another in the shift of the fiber light tors along the optical axis. 1uk)

e value. First 4, second 5L -51 6 ipyii

The optical fiber optic waves are arranged in ут1 ut 19 with the ends in one plane. And otmegv.a my branch of the beam splitter 17) a. Shifted the first 7, second 8, 9 photodetectors,

conjugated through objective 18 with first 4, second 5 L – 6 bundles of 19 optical fibers 3.

In the initial state, when none of the clavuses are pressed, the light (JT of the source I CEiet, the passage through the beam splitter 17 and the loop 18 is inserted into the harness 19, propagates IU.) To the optical fibers 3 and the radiation chaugs from the ends of the ends 15. The lens 12 of the reflector forms the image of the top) in. Light fibers 3 first and the course of the rays from the ends of 15 in. yukopya.kh SECTOR 3, and then in the course of K1NYh TRIEIKM-PRIZMOY 11, | UCh (P1. 11 | 1I

In this case, if the focal plane of the .lip. 12 matches pi with one of the ends of the fiber 3, the radiated light energy and hardly any input

HEjie 1 isp () of water 3 due to the large scattering of geyaths in the planes of the ends of the 15th and c.1a1Y from the photoelectric 7 9.

Nrn najagii pa ll (ybyyu key hard

(and the flu-E1 pair with it 1 И 1 1.; and 11 for 12 approaches the ends of the ends 15 oo; 1 of the optical fibers} 3 and a sequence of .40 focuses the light of the Eia TopEiax 3 optical fibers in order of their times.

0 with respect to the lens 12. Spread across the fibers E1PE) 1m to the light guides 3, the light is emitted from the ends of the harness 19 and 4 is bitten by about 18 Pa of photodetectors 7-9. , received from the first g) of the 4 fiber overlaps, is focused on the first optical port 7, from the second 5 fiber optic fibers is focused on the photo receiver 8 and I. d. The first light on,: 1st)) 1 LEDs) 3 expands () and is compressed in the form of a pulse, which forms 1) ok) the other axis at the time of passing fo0calE1 () nd H. iocKociEi lenses 12 through 15o) TopeEi of the end 15 Å) oko) EE1s of 3 Sagovols 3. So about | a) 7 7 village pos.pedova- TiMbiio GEOSTUNAET code and cosbiEE pa. le.iijHbEX light) E.ME1 pulses. (photo-liHKOEt 7 9 s1E1aly and accessory pa of form-mi., 1 and 20 22 E) miovs, i-deHere are generated in the same sequence EOF parallel, EelpE, Ex code combinations, but already EE of a coal form. Yaral; 1EEL Codes of codes EEO follow-up.

Q nerveOo 23 in Jurassic 24, ..., in the Lth 25th register of EI siUnalu pack), EYSTEUYEyushemuyu from | and the 1st of glemeEEta n ,. 28. Coding to (mbie1a sveE) Ekhodov rg gistrov 23 25 "duty t eia for all entrances 113u 29. At the course of the course (EE code)) of the combi 5 research institute with (} n) tenants 7 9 in reverse IU - this is the case, so that for the first time the inputs of KOMiEapa are mountain 27, Ejustus has the same code, cht () on the second inputs of the comparator 27 from the outputs of EESrvo-Eo register 23. The comparator 27 generates a control pulse, which is received by the EE source but the EE but its input buffer RE-E and ISR addresses are GUIDED 29. Since P.ZU 29 is programmed to decode a working code to / 1 Ai in CE atE- Yes | 1 | This code, E Key words (| in the keyboard, on the foot, 1x NONS of the keyboard) It is a combination of the standard code. U | E1)) EtcIe pulses of the compiler 27, delayed by element 2 (i delay, reset all registers, and the delay time element 26 BE is chosen more than the time of return stroke of the EJE and Clan.

Prev; 1aE-aema keyboard design) E g) provides autofocusing of the radiation reflected. EEU, addressed by the South in the city of Eavishnykh Eolovka, It is therefore necessary to 5 1 n) styr (; in the otic system, the keyboard is) 1, E, which is HERE EE reliability of its work. Copieruction also allows an arbitrary position, as well as the key | E1 on the E-mail and EA. Vel0

Chip 1) C) geek; 1. () G1) 1K | n imshchp1n K. la mepohodim l.in kiroiroi, maybe 6i, iri. brought to 0.-4 mm. that protects nn.iku pr () () and, tyi) 1 k. laiin.i g) s.

- (pm1 / .1a i.tprsu HU i

Claims (2)

1. B () .. | () Kini () - () bird (K.iaiutin | ia, containing predominant |), light source, optically ei) H3aiijihiii cher (firegy light with optical fibers , (jxi i option, keys, each and every. (Koropijix 1. dress) burned key heads with (|) intiiipaTa clips, transducer outputs with a code of kt khz iy keyboard strokes, atklipancitsi Km, chgo, to increase ) Reliability to. Aviahhry and expansion of the area n) Name of the faqcheg to ensure production. | 1hitek1 ypi, i lar key positions, keys) a e () additional (s) ({receiver / receiver). to, tavinimyh go.tovka otrazhaga.1i. one to ci), 1x siete (15od () in united into groups, each of the curie oiirnically connected through otvite.ii e corresponding f () top) and the speaker, other ends of volokoiny.kh evtovodov i, are united and groups, each of which is placed in front of the corresponding IO.TOBKH complex with optical communication capability with its reflector, with the ends of the other fibers of 1x optical fibers larger than n) (Vjynnax each relate to each other | and without it, tse-1ii and,; and with mixing vdolg (ipic axis ()) 1H .1I, IYHOI (yutoiieremikov connected to the inputs and other | 1.ovI codes. 2. In. yukoino-optical k.taniya i la according to item i, h tchpktsa with the fact that () 1 trac, 11. so der K g: i mine. le to in and those, lp | o ye ganoi. | en influenza i, | 1RISM II. 1BIT  L 1 1 () equestrian 11. ski K. iaBii.i I hurray up to n. I, 1) 1 face shch.chsh so that he had defended e.: S contain r ii (jc. () BaTe.ibHo utetam. Kchshye light | ode, 1ite and objective. 4. Io.ukonno-optical k.taviag | 1a to 1. 1. otlpchikptsa.chsch the fact that npi o6pa3ona- 1. the code () 1 contains f () 1miro athe.1 and IIMIIN.II. soy. | P 1111 settlement of the cottage le.TbHo United re-Imrov, com | arato (). .TeMenT 11, 111. - /. LeMein of the plant and the situation, the exits to the subsection are south of the exits of the rereamer ... ovat1m, the entrances () of gels imnu.pysov c. | YAUT1 inputs | 1 N image () nat1. | . output1 1 (|) nogue imnu, 1sov connected) with HHijxijnia- mi entrances of the first Nmistra groups S, inputs e |) Boii KOMNara Ora 1 ETHEMEN INPUTS OR. the output of which is connected with C1 robotics by the inputs of countsOli. ) GET ONE s hell: nlpl, mi) pis () and, exits of the first; about g) connected) with the inputs of the vgo) 1H) comnaraora, ko)) connected .- move () m:. 1st Dependencies. 1) Av. YAK1SHI 1 input HocioHiiHoii and v.1 e; e output irebravu. B) xo; i .Teme ha delay connected to the inputs of SAT) (1Sa REGISTRO). ff / n photodetector