Transmission system for IR remote control unit

The available invention concerns a transmission method for the Ubertragung of signals of a transmitter released by means of long palpation backs to a Empfangsgerät.

Pseudokontiunierliche of procedures, for example sequential going through of a set of discrete Ste] lwerten, become conventional-prove during a depressing the key for example during a remote control by transmission of an instruction per step or by the Ubertragung of some fewer instructions, whereby the Nichteintreffen of an instruction is interpreted during a certain time as end of depressing the key, or by transferring of the beginning and end of depressing the key gesteuert.

The task of the available invention consisted of finding a transmission method which ensures a safe Ubertragung of a long depressing the key with as small a number of instructions as possible, whereby the end of depressing the key are recognized as exactly as possible soli.

This task is solved according to invention by the fact that with the transmitter an electronic circuit is planned in such a manner that from pressing to releasing the key repeats an appropriate repeating instruction is conveyed, whereby releasing a separate instruction auslöst.

A preferential execution form of the invention is characterised by it that a circuit is planned, which with the receiver the absence of a repeating instruction not as end of depressing the key, but only as interruption interpretiert.

A further preferential execution form of the invention marks itself by the fact that the first repeating signal is sent after longer pressing of the key than 400 milliseconds and in the distance of at the most 1 second is repeated, until the key released wird.

A particularly preferred execution form of the invention is characterised by it that in the receiver a circuit is planned, which after receipt of a repeating signal during at least the time interval of the repeating signals a number of discrete control signals erzeugt.

In another preferential execution form pressing and releasing the key become by an electronic circuit simuliert.

By the transmission method according to invention transmitters, for example from several seconds, can be steered reliably pseudokontinuiediche procedures by means of a long depressing the key with. Not broken off with an interruption of the receipt of the repeating signal will the procedure, but only not interrupted and can with the renewed receipt of repeating signals be continued. Thus for example at light control equipment a Dimmvorgang, which is introduced and continued by means of a long depressing the key, is broken off not because of the interruption of the Sendesignales for example by temporary cover of the transceiver connection, but interrupted only. As soon as further repeating signals will receive, the Dimmvorgang in the original direction becomes fortgesetzt.

When releasing the key for example for a light regulating as separate instruction a switching signal is sent. This switching signal marks the end of the current procedure, for example the described Dimmvorganges.

Thus for example the direction of the Dimmfunktion can be turned around, and the next received repeating signals cause a Dimmwirkung opposite for original direction respectable brightening the attached Beleuohtungskörper up. The release of the signals can take place also due to one by means of an electronic circuit of simulated depressing the key. Thus for example a programmable, electronic controller knows a Dimmvorgang at a certain time auslösen.

A remark example of the invention becomes below on the basis a design still more near erläutert.

It shows Fig. 1 a diagram of the signal transmission in dependence of a long depressing the key and the appropriate Lichtsteuerung.

The key at the transmitter is pressed at the time TD and released at the later time width unit again, as in Fig. 1 in the upper diagram represented. After dern time TD thereby within the period TR a first repeating signal R is sent. The transmitter logic recognizes continual depressing the key and sends repetitive in the distance from TR the repeating signal R out. If the key at the transmitter is released at the time width unit, the Umschaitsignal U is sent and a sending of the repeating signals terminates. The receiver takes up ideally all sent signals and evaluates her accordingly. For example with each repeating signal R a light control is adjusted during the time period TR by an appropriate number of certain, discrete values U. If the time period TR as well as the adjustment values CSU for the light control are small selected, then the tax procedure for the operator appears practical as continuous procedure. Now if one or more repeating signals are not received, for example due to a temporary interruption of the connection from the transmitter to the receiver, then the adjustment procedure is only briefly interrupted after expiration of the time period TR and resumed with the next received repeating signal. By the switching signal U it is communicated to the receiver that the current procedure are terminated and turned around his direction soli. Thus for example the light control is changed over by the function of darkening to the function of the clarification of the attached lights and umgekehrt.

The absence of a switching signal lets the control run thereby not uncontrolled to a Endwerf, but interrupts only the straight current procedure and sets it with renewed receipt of the repeating signals fort.

3 CH 682,022 A5