DE102006058758A1 - Method for controlling telecommunication transmitter, involves registering input signal generated by input device and generating data set from input signal - Google Patents

Abstract

The method involves registering an input signal generated by an input device, generating a data set (10) from the input signal. A communication standby position of a user of a telecommunication transmitter is automatically determined by evacuating the data set depending on preset variable regulation (30). The communication standby position of the user is monitored for ascertaining a change of the communication standby position. A preset function of the telecommunication transmitter is carried out by ascertaining a change of the communication standby position of the user. An independent claim is also included for a telecommunication device.

Description

The The invention relates to a method and a device for controlling a telecommunications terminal.

In Telecommunications use different methods to the operation of terminals as well as the voice quality for the Simplify or improve users. For this purpose will be in terminals For example, a handsfree function integrated or become activities for suppression of background noise intended.

Around to simplify the operation, also control functions increasingly provided in a way that these contactless executable are, for example, in certain environments such as in a vehicle the manual operation of a telecommunication device a user is not possible or not desired is. As an alternative to manual operation, the operation can be, for example using voice commands, if appropriate methods for Speech recognition be provided.

In There have already been experiments in the past, parts of one in one System located speech recognizer by definition of a to be spoken Activation expression such as "wake up" to bring, even more utterances for one evaluate a specific period of time. Such an activation expression becomes usual also referred to as "hot word". Indeed led while misinterpreted background noise and similar utterances of the user or strangers often to unwanted activations or deactivating corresponding parts of the speech recognizer.

For the control of a terminal may also be relevant in which position the user is relative to the device. Out DE 101 56 954 B9 In this context, a method for communication is known in which the relative position of a speaker within a vehicle can be determined with the aid of a permanently installed microphone array in order, for example, to preclude disturbing noises. Also, cameras that are typically provided today in mobile terminals such as mobile phones can be used to detect the position of a user to this terminal within the detection angle using appropriately calibrated software.

Furthermore, it is known to equip mobile terminals with movement and inclination sensors in order to detect the orientation of the device in the spatial axes, static and dynamic in the movement. Appropriately equipped mobile phones are known in which such sensors are used directly to perform certain control functions. Furthermore, from the DE 202 21 078 U1 For example, a equipped with tilt sensors mobile phone, in which different functions can be performed with the same button with different inclination of the device.

The Although known from the prior art methods thus allow determining the position of a speaker within a room or the orientation of a device. However, this information is not suitable to provide sufficient Security to decide whether there is a communication request for a user.

Of the The present invention is therefore based on the object, a method and to propose a device with the aid of which to turn or Avoiding a user to a telecommunication terminal safely can be recognized.

These The object is achieved by a method according to claim 1, as well as a telecommunication device solved according to claim 14. Advantageous embodiments and further developments are described in the respective subclaims.

Accordingly comprises a method according to the invention to control a telecommunications terminal registering at least one generated by means of a first input device first input signal, generating a first data set this at least a first input signal, as well as the automatic Determining a communication ready state of a user the telecommunication terminal device by evaluating the first Data set dependent of predetermined variable rules. To change the communication readiness state to be able to determine this is monitored. Will be a change the communication readiness state of the user is detected, so automatically a predetermined function of the telecommunications terminal or at least one with the telecommunication device via a Network associated device executed. In the simplest case exists the communication ready state of a user in the presence or non-existence of a communication readiness of a user.

The monitoring of the readiness for communication state is preferably carried out by registering at least one first input signal at predefined times, generating a first data record therefrom, and by automatically evaluating this first data record, a ready-to-communicate state is determined. Advantageously, these steps are cyclic in a given Time interval executed to ensure continuous monitoring.

The Telecommunication terminal, hereinafter also referred to as terminal for short, can be advantageous as a mobile telecommunication terminal such as Example be designed as a mobile phone, smartphone or PDA. Depending on the purpose, however, any other trained for telecommunications Device as terminal be used. In a preferred embodiment of the method the terminal For example, as a fixed, public telephone or as Internet station trained, the Internet station, for example, a public accessible Access terminal for includes access to the Internet.

A change the communication readiness state of a user is in the rule is always recognized when a user turns to the terminal or turns away from it.

The Procedure allows thus advantageously obtaining at least one activation or deactivation signal, when turning to or from a user Terminal detected is, the signal for activating or deactivating a predetermined component of the telecommunication terminal device is used.

The automatic execution the predetermined function of the telecommunications terminal corresponds insofar advantageous to activate or deactivate at least a predetermined component of the telecommunication terminal. Accordingly is an activation or deactivation signal to the appropriate Component transmitted, for example, depending on from the position and movement of the user in relation to terminal namely when the user through actions with the terminal and / or linguistic utterances his desire to communicate or the completion of the communication expresses. A signal is thus always generated if the user is the terminal turns and starts with at least one local or over one Network associated application and / or a remote communication partner via voice to communicate or when the user turns away from the terminal and communication with the application and / or a remote communication partner terminated, the communication partner man and / or machine can be.

In a preferred embodiment of the procedure becomes the terminal controlled by the user by means of voice control, wherein the when a change is detected the communication readiness state of the user to be performed Advantageously, activating or deactivating at least one application the terminal or one over a network associated application that includes communication the user is using an application program of the terminal or this supports. For this purpose, the application advantageously comprises at least one Speech Recognition, Echo Cancellation, Handsfree, Speaker Verification, Speaker Recognition, Speaker Classification, Voice Identification, Speech Synthesis, Noise reduction function and / or at least one function for detecting and evaluating prosodic Characteristics of speech input such as word accent, syllabic emphasis or sentence melody.

at Use of non-contact Input devices such as cameras or microphones by the method advantageous the use of terminals without direct contact between user and device, such as losing weight and placing a handset, allows. Conveniently, are also corresponding non-contact Output devices provided, such as a screen or speakers.

The Detecting a communication request of a user of a terminal is done thus in principle by means of fixed, deterministic rules, the in the terminal or also stored for example in a remote server system are, whereby the rules determine, which conditions must be, in order generate a "grant" or "avoidance" signal. The conditions are described by the first record, which in each case by means of selected Input devices represented registered input signals. Examples of usable input devices are microphones, microphone arrays, cameras, Tilt sensors, motion sensors, stylus, touch-sensitive Screens (English touchscreen), mice and / or buttons.

Advantageously, registering the at least one first input signal comprises registering at least two input signals generated by means of different input devices, since a communication readiness of the user can be detected more reliably by evaluating different types of input signals due to more complex rules. The conversion of the registered input signals into a common data set represents a preprocessing in which feature vectors are obtained which advantageously serve to form a statistical behavior model or media model to be trained, with the aid of which after a training or adaptation process when certain static and / or or dynamic input signals a Kommunikationsbeginn- or communication end signal are generated can.

One Media model, such as a language model, describes the order in the inputs, such as words and / or sensor signals expected by a media connoisseur such as a speech recognizer become.

A particularly preferred embodiment of the method accordingly, the first, from the first To save input signals created record, as well as at least a second input signal by means of a second input device to register and generate a second record from it. By evaluating the second data set as a function of predetermined fixed rules becomes a communication ready state of a user of Telecommunications terminal determined. Dependent on this communication readiness state and / or a change This communication readiness state becomes the variable Rules for evaluating the first record based on the stored first record automatically adjusted.

The Behavioral model defined by the variable rules can be used a training or adaptation process are pre-assigned by values, the for certain input signals already a willingness to communicate detect.

Becomes a terminal typically always serviced by the same user repeated automatic adaptation of the variable rules for this specific user advantageously substantially user-specific Rules for evaluating the first record are generated.

on the other hand it may also be particularly advantageous, essentially user-unspecific rules to generate, for example, this by default in one terminal for one to provide new users. For this purpose, it is advantageous a repeated automatic adaptation of the variable rules for a plurality different user.

To Complete individual training processes for a larger number of users Communication network over an access to terminals feature, which for execution are formed of the described method, the trained Accordingly, models of individual users are advantageously used to become a user-independent one Derived behavioral model, which as an initial setting or Pre-assignment for further training for new users. After one longer Application period with a large number of users can thus for most new users the training of the behavioral model for generating the "communication request" signal omitted.

As already described above, the at least one first input signal preferably by means of non-contact acting input devices generated to a non-contact To allow control by the user.

The Training or adjusting the variable rules is done in a preferred way Embodiment of the A method in that upon detection of a change in the communication readiness state the user based on the evaluated second record the variable rules are adjusted in such a way that depending on the adjusted rules by evaluating the first record of the same communication standby state is detected as through Evaluation of the second data set. It can do that too be advantageous to create the first record from input signals, the shortly before or shortly after registering the second input signal were registered.

Accordingly the method advantageously provides that the first and second data set be created from input signals that have a first or second period, with the first period before or after the second period or the first and second periods at least partially agree.

Conveniently, includes automatically determining a communication ready state determining a probability value or the like Parameters, which the reliability reflects the condition determined for the existence of a willingness to communicate and comparing the determined probability value or Parameters with a given limit.

For the training or adjusting the variable rules it is beneficial if from the second record the communication readiness state can be determined with high security. For this purpose can for the second input signal, for example, a narrowly defined, detectable Action like pressing be provided a predetermined key. Accordingly includes registering the at least one second input signal advantageous a manual user input.

In cases where a high reliability or confidence value is additionally provided together with an input result, as may be possible for certain speech inputs, for example, and this value reflects a high certainty of the recognized result, registering the at least one second input signal may be advantageous also rated another as safe Include input mode.

Around a communication ready state for different situations or to determine conditions safely, the first record becomes advantageous created from multiple input signals by means of different Input devices are registered. The first record includes thus advantageously different input signals in digitized Shape and thus has a variety of analyzable features.

The Evaluation of the first and / or second data set advantageously comprises the evaluation of a mouse / stylus or keyboard input and / or the determination a transit time difference acoustic, generated by a microphone array Signals and / or speech recognition of acoustic signals and / or a speaker recognition of acoustic signals and / or an evaluation prosodic features of speech inputs and / or image recognition a picture taken by a camera and / or a face recognition an image taken by a camera and / or the evaluation of signals from a proximity or tilt sensor. However, the described method is not based on the mentioned evaluation methods limited, but can depending on the purpose further, including future, evaluation methods include.

The Evaluating the first and / or second data set may depend on the execution of the Telecommunications terminal equipment by itself or by a separate processing unit done. For example, in mobile terminals can the computing power insufficient for the complex evaluation of the first and / or second record, so that the evaluation Advantageously done by means of a remote server, via a Communication network is connected to the terminal. To this end the first and / or second record is separate from that of the terminal Transfer processing unit, which evaluates the first and / or second data set by evaluation monitored communication readiness state monitors and in determining a change the communication ready state of the user to execute the predetermined function transmits a control signal to the terminal.

A inventive telecommunication device comprises a telecommunications terminal, at least a first Input device for registering first input signals, a preprocessing unit for converting registered input signals in digitized data, an evaluation unit for evaluating the digitized data, a control unit for controlling the telecommunications terminal, and a memory for storing variable rules, wherein the evaluation unit is designed to, by evaluating from first input signals obtained digitized data depending on the in the memory filed variable rules automatically a communication standby state a user of the telecommunications terminal to determine to monitor the communication readiness state of the user and upon detection of a change the communication ready state of the user a control signal to transfer to the control unit, wherein the control unit is adapted to respond in response to the Receiving the control signal a predetermined function of the telecommunication terminal perform.

To the Matching the variable rules stored in the memory has the Device advantageously a second input device for registering from second input signals. In this embodiment, the evaluation unit further adapted to first obtained from first input signals to store digitized data in the memory by evaluating second digitized data obtained from second input signals Data in dependence of stored in the memory fixed rules automatically a communication ready state to determine a user of the telecommunications terminal and to monitor and depending which recognized from the evaluated second digitized data Communication ready state and / or a change the communication ready state and the stored first digitized data automatically adjust the variable rules and store the adjusted rules in memory.

Around For example, to be able to evaluate acoustic signals, the preprocessing unit is advantageous adapted to the first and / or second digitized data to create input signals over a given period of time be registered.

The second input device is preferably used to confirm a Attention or avert a user to the terminal to customize to allow the variable rules and thus determining a communication ready state based on input signals of the at least one first input device improve. This is done by adjusting the variable rules advantageous depending on first input signals by means of the first input device just before, shortly after or during one confirmation registered by the user by means of the second input device become.

Accordingly, the preprocessing unit is advantageously designed to receive the first and second digitized data from first reference Ways to create second input signals that are registered over a first or second period, the first period is before or after the second period or the first and second periods at least partially agree.

The confirmation a change a communication ready state by means of the second input device by the user may preferably be optional, for example if starting from the first input signals a probability value for the Presence of a willingness to communicate, which is close to is a predetermined limit. In this case the confirmation is triggered by the second input device preferably adjusting the variable Rules out. Accordingly, the detection causes a change by evaluating the second digitized data by the Evaluation unit determined communication readiness state the user advantageously adjusting the variable rules.

Preferably becomes a communication ready state based on several by means of different input devices registered input signals determined. Accordingly, the at least one first input device comprises Advantageously, at least two first input devices, each designed to register different types of input signals These are with advantage at least one non-contact input device such as a microphone, a microphone array, a camera or include a motion or tilt sensor.

The for confirmation a change the communication ready state provided second input device is advantageous as manually by the user to be operated input device formed, for example as a stylus, mouse, key or touch screen, for a safe evaluation of the corresponding second input signals guarantee. Also, the second input device advantageously as a microphone be configured to register an acoustic signal such as a "hot word". Furthermore, the first input device can simultaneously as the second Input device can be used.

The Evaluation unit is advantageous for evaluating a mouse / stylus or keyboard input and / or to determine a transit time difference acoustic, from a microphone array generated signals and / or speech recognition of acoustic signals and / or for the evaluation of prosodic features of speech inputs and / or speaker recognition of acoustic signals in dependence deposited speaker profiles and / or for image recognition one of a camera recorded image and / or face recognition a picture taken by a camera depending on deposited facial profiles and / or for evaluating signals at least an approximation or inclination sensor is formed.

As already described above includes determining a communication ready state Advantageously, determining a probability value or the like Parameters, which the reliability reflects the determined condition. For this purpose is preferred in memory a limit for stored this parameter, wherein the evaluation unit for determining a probability value or a similar parameter for the presence a willingness to communicate and to compare the determined Value is formed with the stored limit value.

ever according to specific design and purpose of the terminal can the evaluation unit advantageously be integrated in the terminal. Alternatively it is the evaluation unit is arranged in a separate processing unit, the connectable by means of a communication connection with the terminal is.

Further are in an advantageous embodiment the first and / or second input device as separate from the telecommunication terminal Input units formed, wherein the input units preferably are designed to wirelessly with the telecommunication terminal to communicate, for example by means of Bluetooth.

A preferred embodiment a telecommunications device comprises a public telephone as a terminal, which advantageous with non-contact to be operated input devices and corresponding output devices equipped is. To enable communication by bystanders not heard In this embodiment, the device preferably comprises an output device for outputting directional acoustic Signals, for example formed as an ultrasonic speaker system, by means of which by a modulated ultrasonic signal an acoustic Beam can be directed to a given space area.

The Invention will be described below by way of example with reference to preferred embodiments and with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar Parts.

It demonstrate:

1 : a schematic representation of the basic mode of operation of a preferred embodiment of the method according to the invention,

2 FIG. 1 shows a schematic representation of a first preferred embodiment of a telecommunication device according to the invention, FIG.

3 a schematic representation of a second preferred embodiment of a telecommunications device according to the invention, and

4 : A schematic representation of another preferred embodiment of a telecommunication device according to the invention, which comprises a public telephone.

1 schematically shows the basic operation of a preferred embodiment of the method.

At least one first input signal is registered by means of at least one first input device. As usable input devices are in 1 exemplified as a pen or mouse trained pointing device 11 , Touch screen and / or buttons 12 , a microphone array 13 , a camera 14 , a proximity sensor 15 , a motion sensor 17 , as well as a tilt sensor 16 shown. Input signals of one or more of the input devices 11 to 17 become at least a first record 10 converted and pre-processed if necessary. Accordingly, the digital record includes 10 in the illustrated embodiment, a selection of digitized data, the pen / mouse inputs 21 , Keys and / or Touchscreen Inputs 22 , one between different microphones of the microphone array 13 determined transit time difference 23 , an audio sequence recorded by means of at least one microphone as a speech sample 24 , a digital camera image as a picture sample 25 , as well as sensor values 26 the proximity, tilt, and motion sensors 15 to 17 may include.

The record 10 becomes an evaluation unit 40 in which by evaluating the data set in dependence of predetermined variable rules 30 automatically a communication readiness state of a user of a terminal is detected and monitored. Upon change of the communication readiness state of the user, an activation or deactivation signal is automatically generated and supplied to a control unit of the terminal in order to activate or deactivate a predetermined function of the terminal or of an application associated via a network. This function may be, for example, the establishment or removal of a communication connection with another communication participant or the activation or deactivation of an application of the terminal such as a voice control.

For the evaluation of the first data set are in the illustrated embodiment, various evaluation modules 41 to 49 in the evaluation unit 40 intended. These include, for example, at least one pen / mouse analysis 41 , a button and / or touchscreen evaluation 42 , an evaluation of a transit time difference 43 , a sensor evaluation 44 , a speech recognition 45 , a speaker recognition 46 , an evaluation of prosodic features of speech input 49 , an image recognition 47 , as well as a face recognition 48 , To execute the different evaluation modules 41 to 49 For comparison, user-specific voice or picture profiles can advantageously be stored.

The variable rules 30 which may advantageously include a media model are dynamically adapted in a preferred embodiment.

For this purpose, a first record 10 stored and at least created a second record, wherein the first and second data set is typically created from input signals of different groups of input devices. In this case, input signals are preferably selected for the second data set on the basis of which a communication readiness state of a user is dependent on predefined fixed rules 20 can be reliably detected.

Is by means of the evaluation unit based on the second data set in dependence of the predetermined fixed rules 20 detects a change in communication readiness state of a user, so there is an automatic adjustment of the variable rules 30 depending on the stored first record 10 ,

2 shows a preferred embodiment of a telecommunication device 110 , which as a telecommunications terminal 200 is trained. The terminal 200 can be designed as a mobile or stationary device, for example as a mobile phone, smartphone, PDA, car phone or public telephone. Accordingly, the terminal comprises 200 means not shown, such as a transceiver, for communicating with another communication party via a communication network.

Furthermore, the terminal comprises 200 in the illustrated embodiment, input devices 210 which, for example, one or more of the in 1 illustrated facilities 11 to 17 may include at least one preprocessing Ness 220 for converting registered input signals into digitized data, as well as at least one evaluation unit 240 for evaluating the digitized data, which is essentially the evaluation unit 40 in 1 equivalent. The terminal is controlled by the control unit 230 that access a memory 260 in which, for example, a control program is deposited, and suitable output devices 250 controls.

The evaluation unit 240 is with the control unit 230 connected thereto to transmit a corresponding control signal to this upon detection of a change in the communication readiness state of a user. The rules used for the evaluation are also in memory 260 stored. Accordingly, there is also a direct access of the evaluation unit 240 on the memory 260 intended.

In 3 is a further advantageous embodiment of a telecommunications device 120 represented, in which the evaluation unit 440 in a server remote from the terminal 400 is arranged. In this embodiment, preprocessed input signals are received by the control unit 230 of the terminal 201 and the control unit 430 of the server 400 to the evaluation unit 440 transferred, and there using appropriate variable rules, which in memory 460 are stored, evaluated to a communication readiness state of a user of the terminal 201 to identify and monitor. Upon detection of a change in the communication readiness state by the evaluation unit 440 corresponding control signals on the same way to the control unit 230 of the terminal 201 transfer. For communication of the terminal 201 via a communication connection 330 with the server 400 are appropriate interfaces 310 and 320 intended.

4 shows a further preferred embodiment of a telecommunications device 130 that is a public telephone 202 includes, which can be operated by a user without contact. For this purpose, the phone points 202 various non-contact input devices. These include a camera 212 , as well as an array of microphones 213a to 213d , As a further input device is a proximity sensor 211 provided with the phone 202 connected is.

The output devices are a screen 251 as well as a speaker system 252 , or tactile perceptible variable surfaces. In order to prevent others from listening, the speaker system is 252 formed in this embodiment as an ultrasonic speaker system, by means of which a directed to the user sound can be generated.

Optionally, the public telephone can have a button 214 by means of which a user can confirm his willingness to communicate or terminate his communication readiness, in the event of a lack of automatic recognition of his communication readiness state in a memory of the telephone 202 deposited variable rules for determining a communication ready state automatically adjust.

in the Below are some examples of sensor and speech signals derivable variable rules listed.

is For example, the transit time difference of speech signals too spatially the terminal differently arranged microphones within a fixed Tolerance equal to or near zero, so already in this simple Case to be assumed that the user with a local and / or web based application and / or another person via the terminal would like to communicate, so that a corresponding activation signal is generated. It can as Criterion also distance measurements are consulted, which based on the measurements of the angle to the user via a camera array.

The Evaluation of the transit times can be done with an evaluation of an image signal be coupled in such a way that by evaluating this signal on the terminal or a remote server system can determine if the face of the user in one or one of several possible predefined angles to the camera appears, so in this case a corresponding activation signal is generated. About one Tilt sensor can be detected within pre-set tolerances be, whether the terminal with the front side down or as far as being angled, that can be assumed by a user's turn away from the terminal, which makes a communication request seem less likely. Of the Motion sensor serves the dynamic detection of the movements. For example, the user's face appears after a certain one Movement in the camera image, so may with a relatively high Probability or weighting on a communication request getting closed.

If then in addition to those with high probability on a communication desire suggestive sensor signals a "hot word" with equally high Probability is detected, then the activation signal generated.

In a laterally vertical orientation of the terminal with camera image without a face, it can be assumed, for example, with a certain probability that no Kommu Nikationswunsch or no communication request longer exists. Accordingly, an optionally existing activation state is deactivated or a deactivation signal is transmitted.

On this species may be considering Sensor signals and speech recognition a set of rules, too can be defined as behavioral grammar, which can be defined as Presetting in the terminal and / or on a server connected to the communication network terminal and / or is stored user-related. In addition to those installed in the terminal Sensors and / or microphones can These are also in smart clothes and wirelessly with the terminal, e.g. above Communicate with Bluetooth connections, allowing you to detecting the relative position of the user to the terminal, for example standing, ajar, sitting or lying on the side. For example, as Usually be defined that only with a user lying to the side and a lateral position of the terminal and / or other conditions a communication request signal is generated. Is the user and will the terminal in held lateral position, so the probability of a Communication request rated as low.

The Signals in and / or at the terminal and / or in intelligent Clothing installed input devices can also be timed serve to form feature vectors, which in turn as a basis to train probabilistic models such as one Hidden Markov model serve, in this case also as media models or behavioral models.

With this trained, user-dependent behavioral model is the device always on via the Input devices detected compared current user behavior and from a certain calculated reliability value or probability the communication request signal or deactivation signal is generated.

The Training the behavioral model can be done both by software the terminal, as well as on one over a communication network reachable server. This can for Example of users being initiated in the initial phase, at each Communication request to press a button and / or another prescribed and narrowly defined, recordable action. something similar applies analogously for the completion of communication. The before and if necessary briefly subsequently within a certain period of time via the input devices used in several training processes feature vectors serve then the formation of a reference behavioral model of a user.

About one Communication network can the above the input devices during The training phases recorded sensor data or feature vectors a big one Number of users also the formation of an averaged, user-independent behavioral model serve. For this purpose, the users in the initial phase, for example in turn, causes a key to be pressed for each communication request actuate and / or another prescribed and narrowly defined, recordable Perform action. The before and if necessary shortly after within a certain Over the period Input devices in several training processes detected feature vectors or data is then connected to at least one connected to the communication network Server system transmitted. If a sufficient e.g. limit defined as number of detected Data of a big one Number of different users, these can be used to form a user-independent Behavioral model for a communication request can be used.

It can Also beneficial are various behavioral models for one Communication desire to be provided, the different applications are assigned, which stored accordingly depending on the application become.

to Improvement of non-contact Operation stationary and / or quasi-stationary, for example, in vehicles built-in terminals and especially public Phones is next to the non-contact Activation and / or deactivation of the signals that require a communication express one more output mode, if necessary with Hands-free functionality with directional sound required, which prevents bystanders the Spend at least one terminal loudspeaker listen in. For this purpose, a known from the prior art ultrasonic method Find application.

Further can in public Phones advantageous movably built and / or over the Device height distributed Sensors, such as proximity sensors, Camera systems and microphone arrays, both the location of the user and the exact tracking in the direction of the user, as well as the control of one too movable and / or over distributed the device height Speaker system are used, for. Adjustments to the size of the users (handicapped accessible Execution). Also distributed over the device height and / or -area can facilities be distributed for the magnetic coupling of hearing aids, which be driven according to the user localization.

An advantage of the described method is that not only alone voice data or only other input modes, but also other data of the respective input devices are subjected to a joint evaluation, whereby the security for generating or deactivating communication request signals and thus the user acceptance is significantly increased. Users can, if necessary after completion of training phases, without additional keystrokes via a terminal of an application and / or other person as a communication partner "turn". In this way, public telephones are made possible without cable-connected handsets equipped with a built-in loudspeaker system and microphone array and / or camera and / or proximity sensors, in which the signal for communication is no longer activated or deactivated by removing and hanging up the receiver, but an activation and deactivation by monitoring the non-contact and / or unimodal and / or multimodal input options is done. This makes the devices more compact and less susceptible to vandalism. Also, a separate key, for example, to activate and / or cancel the communication, the operation of which may jokingly be made or forgotten, not necessarily required.

Claims (29)

Method for controlling a telecommunications terminal ( 200 . 201 . 202 ) with the steps a) registering at least one by means of a first input device ( 11 - 17 ) generated first input signal, b) generating a first data set ( 10 ) from the at least one first input signal, c) automatically determining a communication readiness state of a user of the telecommunication terminal device ( 200 . 201 . 202 ) by evaluating the first data record ( 10 ) depending on predetermined variable rules ( 30 d) monitoring the communication readiness state of the user in order to be able to determine a change of the communication readiness state, e) carrying out a predetermined function of the telecommunication terminal device ( 200 . 201 . 202 upon detection of a change in the communication ready state of the user. The method of claim 1, wherein monitoring the communication ready state by executing the Steps a) to c) takes place at predetermined times. Method according to one of the preceding claims, further comprising the steps - storing the first data record ( 10 ), - Register at least one by means of a second input device ( 11 - 17 ) generated second input signal, - generating a second data set ( 10 ) from the at least one second input signal, - automatically determining a communication ready state of a user of the telecommunication terminal device ( 200 . 201 . 202 ) by evaluating the second data set ( 10 ) in dependence of given fixed rules ( 20 ), - Automatic adjustment of the variable rules ( 30 ) for evaluating the first data set as a function of the communication readiness state of the user recognized from the evaluated second data record and of the stored first data record. Method according to claim 3, wherein substantially user-specific rules for evaluating the first data set ( 10 ) by repeatedly automatically adjusting the variable rules ( 30 ) for a specific user. Method according to claim 3, wherein substantially user-unspecific rules for evaluating the first data set ( 10 ) by repeatedly automatically adjusting the variable rules ( 30 ) for a variety of different users. Method according to one of claims 3 to 5, wherein the first and second data set ( 10 ) are created from input signals that are registered over a first or second period, wherein the first period before or after the second period or the first and second periods at least partially agree. Method according to one of the preceding claims, wherein the registration of at least one first input signal means registering at least two by means of different input devices ( 11 - 17 ) comprises generated input signals. Method according to one of the preceding claims, wherein the at least one first input signal by means of non-contact input devices ( 13 - 15 . 17 ) is generated. Method according to one of claims 3 to 8, wherein the registering the at least one second input signal is a manual user input or includes another input of a safe mode input mode. Method according to one of the preceding claims, wherein the evaluation of the first and / or second data set - the evaluation of a mouse / stylus ( 41 ), Keyboard or touch screen input ( 42 ) and / or - determining a transit time difference ( 43 ) acoustics shear, signals generated by a microphone array and / or speech recognition ( 45 ) acoustic signals and / or - an evaluation of prosodic characteristics of acoustic signals ( 49 ) and / or - a speaker recognition ( 46 ) acoustic signals and / or - an image recognition ( 47 ) of an image taken by a camera and / or - a face recognition ( 48 ) of an image captured by a camera and / or - the evaluation of signals of a proximity, motion or inclination sensor ( 44 ). Method according to one of the preceding claims, wherein the automatic determination of a communication readiness state the steps includes: - Determine at least one probability value or parameter, which the reliability of the determined condition, for the existence of a willingness to communicate, - To compare the determined probability value or parameter with a predetermined limit. Method according to one of the preceding claims, wherein the evaluation of the first and / or second data set ( 10 ) and the monitoring by the telecommunication terminal device of the communication readiness state determined from the respectively evaluated data record ( 200 ) he follows. Method according to one of the preceding claims, wherein - the first and / or second data set ( 10 ) to one of the telecommunications terminal equipment ( 201 ) separate processing unit ( 400 ), - the evaluation of the first and / or second data record ( 10 ) and monitoring the communication readiness state determined from the respectively evaluated data record by means of the processing unit ( 400 ), and - upon detection of a change in the communication readiness state of the user for performing the predetermined function, a control signal from the processing unit ( 400 ) to the telecommunications terminal ( 201 ) is transmitted. Telecommunication device ( 110 . 120 . 130 ), comprising - a telecommunications terminal ( 200 . 201 . 202 ), - at least one first input device ( 11 - 17 ) for registering first input signals, - a preprocessing unit ( 220 ) for converting registered input signals into digitized data, - an evaluation unit ( 240 . 440 ) for analyzing the digitized data, - a control unit ( 230 ) for controlling the telecommunication terminal equipment ( 200 . 201 ), and - a memory ( 260 . 460 ) for storing variable rules, wherein the evaluation unit ( 240 . 440 ) is designed to be able to obtain digitized data obtained by evaluating from first input signals in dependence on that in the memory ( 260 . 460 ) stored variable rules ( 30 ) automatically a communication readiness state of a user of the telecommunications terminal ( 200 . 201 . 202 ), to monitor the communication ready state of the user, and upon detection of a change in the communication readiness state of the user, a control signal to the control unit ( 230 ), and wherein the control unit ( 230 ) is adapted, in response to the receipt of the control signal, a predetermined function of the telecommunications terminal ( 200 . 201 . 202 ). Apparatus according to claim 14, further comprising a second input device ( 11 - 17 . 214 ) for registering second input signals, wherein the evaluation unit ( 240 . 440 ) is further configured to - first digitized data obtained from first input signals in the memory ( 260 ) by evaluating second digitized data obtained from second input signals as a function of fixed rules stored in the memory ( 20 ) automatically a communication readiness state of a user of the telecommunications terminal ( 200 . 201 . 202 ) to determine and monitor, depending on the communication readiness state determined from the evaluated second digitized data and / or a change of the communication readiness state and the stored first digitized data automatically the variable rules ( 30 ) and the custom rules in the memory ( 260 . 460 ). Device according to one of the preceding claims, wherein the preprocessing unit ( 220 ) is adapted to create first and / or second digitized data from input signals registered over a predetermined period of time. Apparatus according to claim 16, wherein the preprocessing unit ( 220 ) is configured to generate the first and second digitized data from first and second input signals, respectively, registered over a first and second time period, respectively, the first time period before or after the second period or the first and second periods at least partially coincide. Device according to one of claims 15 to 17, wherein the determination of a change of the by evaluating the second digitized data by the evaluation unit ( 240 . 440 ) of the user's readiness for communication readjusting the variable rules ( 30 ) causes. Device according to one of the preceding claims, wherein the at least one first input device ( 11 - 17 . 211 . 212 . 213a - 213d ) comprises at least two first input devices, each configured to register different types of input signals. Device according to one of the preceding claims, wherein the at least one first input device at least one non-contact input device ( 13 - 15 . 17 . 211 . 212 . 213a - 213d ). Device according to one of the preceding claims, wherein the second input device as an input device to be operated manually by the user ( 11 . 12 . 214 ) or is designed as a device for voice input. Device according to one of the preceding claims, wherein the evaluation unit ( 240 . 440 ) - to evaluate a mouse / stylus, keyboard or touchscreen input ( 21 . 22 ) and / or - for determining a transit time difference acoustic, from a microphone array ( 13 ) generated signals and / or - for speech recognition of acoustic signals and / or - for the evaluation of prosodic characteristics of acoustic signals ( 49 ) and / or - for speaker recognition of acoustic signals as a function of deposited speaker profiles and / or - for image recognition of a camera ( 14 ) and / or - for face detection of a camera ( 14 ) depending on stored facial profiles and / or - for evaluating signals of an approximation ( 15 ) or inclination sensor ( 16 ) is trained. Device according to one of the preceding claims, wherein a limit value is stored in the memory and the evaluation unit ( 240 . 440 ) is designed to determine a probability value for the presence of a communication readiness and to compare the determined value with the stored limit value. Device according to one of the preceding claims, wherein the evaluation unit ( 240 ) in the telecommunications terminal ( 200 ) is arranged. Device according to one of the preceding claims, wherein the evaluation unit ( 440 ) in a separate processing unit ( 400 ) arranged by means of a communication link ( 330 ) with the telecommunication terminal equipment ( 201 ) is connectable. Device according to one of the preceding claims, wherein the first and / or second input device ( 211 ) than the telecommunications terminal equipment ( 202 ) separate input units are formed. Apparatus according to claim 26, wherein the input units are adapted to the telecommunications terminal to communicate wirelessly. Device according to one of the preceding claims, designed as a public telephone ( 202 ), further comprising an output device ( 252 ) for the output of directional acoustic signals. Apparatus according to claim 28, wherein the output device ( 252 ) is an ultrasonic speaker system, which is adapted to direct an acoustic beam to a predetermined spatial area by means of a modulated ultrasonic signal.