WO2005060595A2 - Telephone mobile ayant une interface vocale - Google Patents

Telephone mobile ayant une interface vocale Download PDF

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Publication number
WO2005060595A2
WO2005060595A2 PCT/US2004/040922 US2004040922W WO2005060595A2 WO 2005060595 A2 WO2005060595 A2 WO 2005060595A2 US 2004040922 W US2004040922 W US 2004040922W WO 2005060595 A2 WO2005060595 A2 WO 2005060595A2
Authority
WO
WIPO (PCT)
Prior art keywords
speech
speech recognition
mode
recognition mode
telephone
Prior art date
Application number
PCT/US2004/040922
Other languages
English (en)
Other versions
WO2005060595A3 (fr
Inventor
Dong-Jian Yue
Gui-Lin Chen
Zhen-Li Yu
Yi-Qing Zu
Original Assignee
Motorola Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc. filed Critical Motorola Inc.
Publication of WO2005060595A2 publication Critical patent/WO2005060595A2/fr
Publication of WO2005060595A3 publication Critical patent/WO2005060595A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/271—Devices whereby a plurality of signals may be stored simultaneously controlled by voice recognition
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G10L2015/226—Procedures used during a speech recognition process, e.g. man-machine dialogue using non-speech characteristics
    • G10L2015/228—Procedures used during a speech recognition process, e.g. man-machine dialogue using non-speech characteristics of application context
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/74—Details of telephonic subscriber devices with voice recognition means

Definitions

  • This invention relates in general to electronic devices with a speech interface.
  • the invention is particularly useful for, but not necessarily limited to, such devices with a telephone function.
  • Mobile electronic devices such as mobile telephones and personal digital assistants (PDAs) are globally popular, especially as they gain features and hybrids, which function as both, enter the market, hi many countries such devices are ubiquitous and are owned by the majority of teenagers and young adults and have become essential as data storage devices, personal organisers and/or especially as personal communicators.
  • the predominantly used interface between such mobile devices and their users is the tactile-visual interface, which is a graphical user interface (GUI) similar to that used by most personal computers and other devices.
  • GUI graphical user interface
  • PDAs one similarly navigates one's way through sequences of menus using a touch screen and stylus.
  • an electronic device comprises voice function selection means and a processor.
  • the voice function selection means is user operable to select a first speech recognition mode or a second, different speech recognition mode.
  • the processor is operable to perform speech recognition on a received speech signal, according to the mode selected by the voice function selection means, and to perform a further function based on recognised received speech.
  • a method of controlling a mobile electronic device to perform a desired function comprises receiving a selection of one speech recognition mode from a plurality of speech recognition modes and receiving a speech signal. The method then performs speech recognition on the received speech signal according to the selected speech recognition mode. The method performs a further function based on recognised received speech.
  • computer software for controlling a mobile electronic device to perform a desired function.
  • the software comprising computer code means for instructing a processor.
  • the code means instructs the processor to receive an input as a selection of a speech recognition mode from a plurality of speech recognition modes and to receive a speech signal.
  • the processor is instructed to perform speech recognition on the received speech signal according to the selected speech recognition mode.
  • the processor is further instructed to perform a further function based on recognised received speech.
  • Figure 1 is a block diagram illustrating components of a mobile telephone in accordance with an embodiment of the invention
  • Figure 2 is a schematic view of a displayed page of a telephone following speech recognition in one mode
  • Figure 3 is a schematic view of a displayed page of a telephone following speech recognition in another mode
  • Figure 4 is a flow diagram relating to the selection and operation of speech recognition modes.
  • FIG. 1 is a block diagram of components of an electronic device in the form of a mobile radio telephone 1 in accordance with an embodiment of the invention.
  • the radio telephone 1 has a radio frequency communications unit 2 coupled to be in communication with a processor 4.
  • a standard input interface in the form of a screen 6 and a keypad 8 are also coupled to be in communication with the processor 4.
  • the processor 4 includes an encoder/decoder 10 with an associated Read Only Memory (ROM) 12 storing data for encoding and decoding voice or other signals that may be transmitted or received by the radio telephone 1.
  • the processor 4 also includes a microprocessor 14 coupled, by a common data and address bus 16, to the encoder/decoder 10 and an associated character Read
  • ROM Read Only Memory
  • RAM Random Access Memory
  • static programmable memory 24 and SIM module 26 each can store, amongst other things, selected incoming text messages and a telephone book database of telephone numbers.
  • the microprocessor 14 has ports for coupling to the keypad 8, the screen 6, an alert module 28 that contains a vibrator motor and associated driver, a microphone 30 and a speaker 32.
  • the microphone 30 and speaker 32 in this embodiment also form part of the interface between a user and telephone
  • the character ROM 18 stores code for decoding or encoding text messages that may be received by the communication unit 2, input at the keypad 8.
  • the character ROM 18 and the inventory ROM 20 both also store operating code (OC) for the microprocessor 14, the OC in the inventory ROM 20 being used for Automatic Speech Recognition (ASR) and Text-to-Speech (TTS) synthesis.
  • the radio frequency communications unit 2 is a combined receiver and transmitter having a common antenna 34.
  • the communications unit 2 has a transceiver 36 coupled to the antenna 34, via a radio frequency amplifier 38.
  • the transceiver 36 is also coupled to a combined modulator/demodulator 40 that couples the communications unit 2 to the processor 4.
  • the above mobile telephone is operable as a standard telephone in terms of making and receiving telephone calls, sending and receiving SMS messages, etc. The difference is in the user interface.
  • the processor 4 of the telephone is able to operate as an ASR engine and conduct automatic speech recognition on speech received by the microphone 30 and converted into electrical signals. The recognition is based on suitable software stored in the code ROM 12, comparing incoming signals with speech models stored in the inventory ROM 20.
  • the processor 4 of the telephone is also able to operate as a TTS engine and conduct text to speech synthesis on text received, for instance as an SMS message, or text read out from a memory item, for instance a menu heading or its contents.
  • the synthesised speech signals are communicated to the user through the speaker 32.
  • the speech synthesis is based on suitable software stored in the code ROM
  • the telephone of Figure 1 has a multi-modal user interface, integrating the screen 6, the keypad 8, an embedded ASR engine used with the microphone 30 and an embedded TTS engine used with the speaker 32, to enhance the usability of the mobile phone.
  • the user can input data and commands by any of the screen 6, the keypad 8 and the ASR engine.
  • the telephone is able to output data and messages by either of the screen 6 and the TTS engine.
  • voice signals can be picked up and transmitted and received and played through the microphone 30 and speaker 32, respectively, when the telephone is used in a telephone call.
  • the mobile telephone of Figure 1 is operable in various ASR modes and TTS modes.
  • the mobile telephone includes a voice function button (typically disposed on keypad 8), a speech recognition function and a text to speech synthesis function.
  • the voice function button is used by the user to select a desired one of several speech recognition modes (in this embodiment: name recognition, number recognition and command recognition).
  • the telephone bases its approach to speech recognition of input speech according to the selected speech mode. If the name recognition mode is selected, a set of names is used as the basis for recognition. If the number recognition mode is selected, numbers are used as the basis for recognition. If the command recognition mode is selected, a set of commands is used as the basis for recognition. Text to speech synthesis is used to playback the recognised speech before going ahead with dialling a telephone number based on the recognised name or number or going ahead with the commanded function.
  • the ASR engine can work in three speech recognition modes: i) a name recognition mode, in the form of the Name Dial mode, ii) a command recognition mode, in the form of the Command Control mode; and iii) a number recognition mode, in the form of the Digit Dial mode.
  • the user can selectively access these by way of different access actions.
  • i) Name Dial mode (accessible from any existing mode except a
  • Dial Pad mode This mode is used to retrieve and dial a telephone number based on a voiced input of a person's name.
  • a name for instance "Charlie Farley”
  • the ASR would seek to recognise the spoken term (“Charlie Farley") and to match it with the names in the telephone book in the static programmable memory 24. Once a match is made, the name is deemed to have been recognised, the associated telephone number is dialled and a call is made. The telephone uses TTS to read out the name it has matched, as confirmation.
  • Command Control mode accessible from any existing mode
  • This mode is used to input command keywords (which may be words or phrases) to the telephone.
  • the ASR would seek to recognise what is said and match it with a command keyword in the inventory ROM 20. Once a match is made, a command is deemed to have been recognised, and the appropriate action is taken. This may, for instance, be: to start recording an SMS message, to flesh-out and play a newly or previously received SMS, to find and read out the events in today's day planner, to check the current signal or battery level, to open the dial pad, etc.
  • Some of the actions require some kind of response from the telephone, in terms of a spoken response, for which the TTS engine is used. Examples of some possible commands, with the relevant resulting actions are provided in Table 1 below.
  • Digit Dial mode (accessible only when in the Dial Pad mode, which is achieved through the suitable command in the command control mode) - This mode is used to dial a telephone number directly from voiced input.
  • the ASR would seek to recognise each number. Once each number in the entire sequence of numbers has been determined, the associated number is dialled and a call is made.
  • the telephone uses TTS to read out the sequence of numbers it has recognised, as confirmation.
  • the processor 4 performs speech recognition based on different categories of data (in this embodiment: name, number or command), based on the speech recognition mode selected.
  • All three ASR modes are accessible in this embodiment through pushing a single specific button on the telephone, in this case a voice function button.
  • the voice function button is part of the keypad 8, although it is most usefully on the side of the telephone (although it can be sited elsewhere, without necessarily being located with the rest or majority of the keypad buttons).
  • the voice function button in this embodiment is multiplexed with another function to go back a page or level if it is double-clicked in quick succession. That is it allows a user to return from the current function or menu level to the previous function or up level. For example, if a user were browsing the Internet, he could leave the current program and return to the previous program or home page by double-clicking the voice function button.
  • This button operation is assigned to have the same function as a "go-back" menu on a program page. It speeds up the navigation among the functions or programs in the mobile telephone.
  • the voice function button can be multiplexed with other function buttons and/or to perform other functions. In another alternative embodiment instance it provides only the operations mentioned above.
  • the Name Dial mode is accessed by pushing the voice function button and holding it down until there is a beep. At this point the user says the name and then releases the voice function button.
  • the Digit Dial mode is accessed in the same way, but only when already in the dial pad mode. Further, the user usually says a telephone number, rather than a name.
  • the Command Control mode is accessed by clicking the voice function button, then promptly pushing the voice function button again and holding it down until there is a beep. At this point the user says the command keyword and then releases the voice function button. All ASR operations in this embodiment are based on push-to- talk, using and holding down the voice function button. This may be different in other embodiments.
  • the telephone in each mode, whether it involves dialling or a command, the telephone provides voice confirmation of what speech it recognised, before going ahead (thereby giving the user an opportunity to stop the operation).
  • the device awaits confirmation to continue before doing so (dialling the relevant number or following the relevant command instruction).
  • the TTS engine can work in two modes: i) the ASR Confirmation mode and ii) the Talking mode. The user can only selectively access the
  • Talking mode is automatic, in response to ASR mode operations.
  • ASR Confirmation mode (automatically accessed from any of the three ASR modes, above) - This mode is accessed by the telephone in response to an ASR action by the user in the three above-mentioned ASR modes.
  • TTS is used to speech synthesise: the name matched in the Name Dial mode; a response or a confirmation of an action in response to a command matched in the Command Control mode; or a sequence of recognised numbers input in the Digit Dial mode.
  • Talking mode (accessible from any existing mode) - This mode involves the TTS providing further voice feedback from command keywords in the Command Control mode, for instance reading out a message in the message box.
  • the talking mode can be turned on or off, using a check icon in the telephone configuration pull-up in the status bar in the GUI. Alternatively, it could be turned off and on using a command keyword in the Command Control mode. In the preferred embodiment, the ASR Confirmation mode is always on. However, in alternative embodiments, it may be possible to turn it on or off as desired, for instance through a check icon or command keyword in the Command Control mode. Whilst the ASR modes are selected using the voice function button in particular ways, in other embodiments, different operations may be used to access the different modes mentioned earlier. In further embodiments, different buttons can be used to access different modes. The means for selecting the voice function need not be one or more buttons. It could instead be screen operated or some other input mode. The usefulness of requiring the user to press a button and, in particular, to hold it down, is that it prevents accidental operation and makes accurate
  • ASR ASR and ultimate operation more likely, especially when only certain operations are possible in each ASR mode. Whilst this still requires some kind of contact between the user and telephone (or other device) and therefore requires some notice to be paid, it is just to one button in the preferred embodiment and not to the screen. Moreover, with the button placed at the side of the device, that button is easier to find by touch alone. Thus it becomes optional to look at the screen whilst using the device.
  • the screen of the telephone still shows screens it would be showing during normal operation by keypad or display. For instance, in the Name Dial mode, when a name is spoken, once the telephone determines it has recognised a name, it still displays the telephone book page on the screen 6 with that name on it.
  • Figure 2 is a schematic view of a displayed page on the screen 6 of the telephone 1 following speech recognition in one mode.
  • Figure 2 shows a displayed page 40 on the screen 6, when, in the Name Dial mode, the user has spoken the name George Ferackis and that name has been recognised.
  • the TTS synthesiser itself causes the name "George Ferackis" to be spoken from the speaker 32.
  • Figure 3 is a schematic view of a displayed page of the telephone 1, following speech recognition in the Digit Dial mode. In the Digit Dial mode, a dial pad page 42 is displayed on the telephone screen 6. When a number sequence is spoken, as the telephone determines it recognises the numbers the telephone displays the recognised numbers in a digit string box 44.
  • the page also includes a dial pad 46 (for manually dialling a number), a delete action button 48 (for deleting a number from the digit string box 44), a return key button 50 (for going to a previous page), a dial action button 52 (for dialling out the number in the digit string box 44 to make a call) and a confirm action button 54 (for speaking out the number in the digit string box 44 one time, for confirmation before dialling out).
  • a dial pad 46 for manually dialling a number
  • a delete action button 48 for deleting a number from the digit string box 44
  • a return key button 50 for going to a previous page
  • a dial action button 52 for dialling out the number in the digit string box 44 to make a call
  • a confirm action button 54 for speaking out the number in the digit string box 44 one time, for confirmation before dialling out.
  • Step SI 04 determines if the input is via the voice function button. If the input is not via the voice function button, the device or telephone 1 performs whatever other function is called for in step SI 06, then reverts to step SI 02, waiting for the next input. If the input is via the voice function button, then, at step SI 08, the process determines if the voice function button is currently being held down (actuated). If the voice function button is currently being held down, then at step SI 10 the process determines if the device is in the Dial Pad mode. If the device or telephone 1 is in the Dial Pad mode, then, in step SI 12, any speech is recorded in the RAM 22, from the microphone 30, for as long as the voice function button continues to be held down.
  • step SI 14 the device or telephone 1 performs number recognition on the received speech signal, using the ASR engine. Once the number has been recognised, the TTS engine is used to synthesise the recognised number and play it back through the speaker 32, in step SI 16. In step SI 18, the device then performs the further function of automatically dialling the recognised number to make a call via the radio communications unit 2, then reverts to step SI 02, awaiting further input. If at step SI 10, it is determined that the device or telephone 1 is not in the Dial Pad mode, then, in step SI 20, any speech is still recorded in the RAM 22, from the microphone 30, for as long as the voice function button continues to be held down.
  • step S122 the device or telephone 1 performs name recognition on the received speech signal, using the ASR engine. Once the name has been recognised, the TTS engine is used to synthesise the recognised name and play it back through the speaker 32, in step S124.
  • step SI 18 the telephone 1 performs the further function of automatically dialling the number corresponding to the recognised name to make a call, then reverts to step S 102, awaiting further input. If at step SI 08, it is determined that the voice function button is not currently being held down, step S126 determines if the voice function button was previously just clicked and is now being held down.
  • step S128 any speech is recorded in the RAM 22, from the microphone 30, for as long as the voice function button continues to be held down, in step S128.
  • step S130 the telephone 1 performs command keyword recognition on the received speech signal, using the ASR engine.
  • the TTS engine is used to synthesise the recognised command keyword and to play it back through the speaker 32, in step S132.
  • step SI 34 the device automatically performing the commanded further function corresponding to the recognised command keyword. The process then reverts to step SI 02, awaiting further input.
  • step SI 36 determines at step SI 36 whether the voice function button was clicked twice in quick succession. If voice function button was so clicked twice in quick succession, the processor moves the current display back one page, at step S138, then reverts to step S102, awaiting further input. If it is determined at step SI 36 that the voice function button was not clicked twice in quick succession, the processor simply reverts to step SI 02, awaiting further input, on the assumption that there has been an error. Whilst not specifically described, the process can also deal with cases where the ASR is unable to recognise a name, number or command keyword, or where the voice function button is held down too long, or other possibilities.
  • the described embodiments of the invention use ASR.
  • the relevant data used in recognising input speech can be found in the inventory ROM 20 and the static memory 24.
  • the electronic device or telephone 1 can also include a learning program to improve the accuracy of the ASR over time, with the results also stored in the static memory 24.
  • both the ASR and TTS can readily be personalised and set-up for each user, in that all the voice functions may be itemised further and set as on/off in the mobile phone system set-up.
  • the above-described telephone has an ASR function and a TTS function and uses a multi-modal interface.
  • the ASR allows much of the operation of the telephone to be voice controlled. Further TTS allows synthetic speech to provide almost any information to the user relating to the telephone's operation. Moreover, the use of just a single button to select a specific, or limited choices, of ASR function allows easier and more accurate use of the ASR.
  • This multi-modal scheme can be integrated into existing mobile telephone designs and approaches seamlessly. Existing mobile telephone function structures and most operation logic can remain unchanged and preserved to be consistent with the existing style.
  • the keypad is typically includes a voice function selection means, user operable to select a first speech recognition mode or a second, different speech recognition mode, the speech recognition mode being based on a sequence of operations of the keypad.
  • the 4 processor is operable to perform speech recognition on a received speech signal, according to the mode selected by the voice keypad, and to perform a further function based on recognised received speech.
  • the new speech functions can easily be inserted and implemented. This may even be done through new or added software (i.e. computer code means to instruct the processor to perform certain functions on incoming inputs and signals, and to record certain data in certain memories), whether into a new or existing telephone or other device.

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)
  • Telephonic Communication Services (AREA)

Abstract

L'invention concerne un téléphone mobile (1) contenant un bouton de fonction vocale sur un clavier (8), une fonction reconnaissance vocale et une fonction texte en reconnaissance vocale affichées sur un écran (6). Le bouton de fonction vocale est utilisé par l'utilisateur pour sélectionner un des trois modes de reconnaissance vocale exécutés par un processeur (4), ces modes sont: reconnaissance de nom, reconnaissance de numéro et reconnaissance de commande. Le téléphone (1) fonde son approche sur la reconnaissance vocale de parole entrée selon le mode vocal sélectionné. Si le mode de reconnaissance vocale est sélectionné, on utilise un ensemble de noms comme base pour la reconnaissance. Si le mode reconnaissance de numéro est sélectionné, on utilise les numéros comme la base de la reconnaissance. Si le mode de reconnaissance de commande est sélectionné, on utilise un ensemble de commandes comme base de la reconnaissance. La fonction texte en synthèse vocale est utilisée pour reproduire la parole reconnue avant de composer un numéro de téléphone, par une unité de communications (2), sur la base du nom ou du numéro reconnu ou de continuer avec la fonction commandée.
PCT/US2004/040922 2003-12-17 2004-12-07 Telephone mobile ayant une interface vocale WO2005060595A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2003101237976A CN1630394A (zh) 2003-12-17 2003-12-17 具有语音接口的移动电话
CN200310123797.6 2003-12-17

Publications (2)

Publication Number Publication Date
WO2005060595A2 true WO2005060595A2 (fr) 2005-07-07
WO2005060595A3 WO2005060595A3 (fr) 2005-11-03

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WO (1) WO2005060595A2 (fr)

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EP2315417A1 (fr) * 2009-10-23 2011-04-27 Deutsche Telekom AG Procédé, dispositif électronique et système pour accès de données

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CN100452863C (zh) * 2006-02-16 2009-01-14 华为技术有限公司 一种可视电话控制方法及设备

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US20030033152A1 (en) * 2001-05-30 2003-02-13 Cameron Seth A. Language independent and voice operated information management system
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Publication number Priority date Publication date Assignee Title
US6198947B1 (en) * 1996-02-28 2001-03-06 Oki Telecom, Inc. External control unit with reduced keypad integrated in voice activated vehicular telephone system with call-in-process voice-to-tones and voice to-memory conversion facilities
US20020041659A1 (en) * 1998-09-24 2002-04-11 Antony Paul Beswick Embedded phonetic support and tts play button in a contacts database
US20020055844A1 (en) * 2000-02-25 2002-05-09 L'esperance Lauren Speech user interface for portable personal devices
US6539358B1 (en) * 2000-05-24 2003-03-25 Delphi Technologies, Inc. Voice-interactive docking station for a portable computing device
US20030033152A1 (en) * 2001-05-30 2003-02-13 Cameron Seth A. Language independent and voice operated information management system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2315417A1 (fr) * 2009-10-23 2011-04-27 Deutsche Telekom AG Procédé, dispositif électronique et système pour accès de données

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CN1630394A (zh) 2005-06-22
WO2005060595A3 (fr) 2005-11-03

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