WO1999046909A1 - Device for entering signs into a cellular telephone - Google Patents
Device for entering signs into a cellular telephone Download PDFInfo
- Publication number
- WO1999046909A1 WO1999046909A1 PCT/SE1999/000389 SE9900389W WO9946909A1 WO 1999046909 A1 WO1999046909 A1 WO 1999046909A1 SE 9900389 W SE9900389 W SE 9900389W WO 9946909 A1 WO9946909 A1 WO 9946909A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- accordance
- above patent
- accelerometer
- mobile telephone
- character
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/32—Digital ink
- G06V30/333—Preprocessing; Feature extraction
Definitions
- the invention concerns a device for character input in a mobile telephone. It replaces a set of buttons or keyboard and, for example, makes it possible to reduce the size of mobile telephones.
- the invention provides a device for character input in a mobile telephone, in accordance with the following patent claim.
- the invention is thus based on the signals from an accelerometer being decoded and the characters being identified by means of algorithms for pattern recognition.
- the device is part of the mobile telephone or sends signals to the mobile telephone via a line or cordlessly.
- the accelerometer can be made to send signals when the object is used in the same way as a pen.
- signals When the signals are decoded, patterns in them can be linked to various characters or commands.
- a computer can be programmed to recognise the movement patterns of various hand-written characters. In practice, this can then be employed in a mobile telephone, for example, in such a way that the entire telephone is used like a pen.
- the accelerometer should be located as far away as possible from the object's centre of gravity, such as in one of its corners or on the tip of a mobile telephone's antenna.
- the object e.g. the telephone
- the part of the telephone that contains the accelerometer can be held against the writing surface. This is because the tip of a pen is the part that moves the most when the pen is used for writing.
- the accelerometer can even be fitted into a separate object that could be similar to a pen in shape. Then the signals from the accelerometer, either before or after processing/interpretation/decoding to characters/commands, could be sent via a line or cordlessly to the telephone.
- the accelerometer can be uni-, di- or triaxial.
- Decoding of the acceleration signals is based on pattern recognition. It is not necessary to integrate the signals so that the written characters are visible in order for them to be recognised. Character recognition can be performed either on the direct acceleration signals or following time integration of the position signals.
- the decoding of hand movements means processing significantly (at least by a factor of ten) smaller quantities of information.
- higher and lower frequencies can be filtered out when the accelerations that are generated by normal handwriting fall within a fairly narrow frequency range.
- Discernment of character sequences within the movement pattern The device must be able to discern movements that correspond to a character or a command from the movements to which it is subjected. First, it must be able to identify the start and end of a character. The following methods can be used to decide which parts of a movement pattern should be decoded.
- contact sensor or pressure sensor A pressure sensor or contact sensor in the tip of the device signals when the device comes into contact with the (writing) surface. From this point on the acceleration signals are decoded on the horizontal plane until the device is lifted from the surface, i.e. the contact sensor signals that contact with the surface has been broken.
- this signal can be used to identify the start of the characters/commands. From this juncture, the acceleration signals are decoded on the horizontal plane until the device is lifted from the surface, which is recognised by the resulting acceleration that arises when the pen is lifted from the surface.
- the vibrations that arise during the writing process are detected by means of the accelerometer and used as a signal that contact with the surface is taking place.
- movements other than those that correspond to written characters
- movements in three dimensions can be used for this.
- the command movements are essentially recognised in the same way as characters, i.e. by means of algorithms for pattern recognition.
- the device can also be used to recognise people's initials or signatures. By decoding and registering the acceleration pattern, it will in practice be impossible to forge signatures.
- the principle described for decoding handwriting movement patterns, interpreted by means of an accelerometer, can also be used for character input in a computer. The advantages of this are evident, such as when the computer is so small there is no space for a keyboard; or for people who have difficulties in using a normal keyboard.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU28657/99A AU2865799A (en) | 1998-03-12 | 1999-03-12 | Device for entering signs into a cellular telephone |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9800851-9 | 1998-03-12 | ||
SE9800851A SE9800851D0 (en) | 1998-03-16 | 1998-03-16 | Character input device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999046909A1 true WO1999046909A1 (en) | 1999-09-16 |
Family
ID=20410552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1999/000389 WO1999046909A1 (en) | 1998-03-12 | 1999-03-12 | Device for entering signs into a cellular telephone |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2865799A (en) |
SE (1) | SE9800851D0 (en) |
WO (1) | WO1999046909A1 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2347593A (en) * | 1999-01-06 | 2000-09-06 | Motorola Inc | Use of motion to input information into a radio telephone |
WO2001048590A1 (en) * | 1999-12-23 | 2001-07-05 | Anoto Ab | Written command |
WO2002021252A1 (en) * | 2000-09-07 | 2002-03-14 | Anoto Ab | Electronic recording and communication of information |
WO2002039373A1 (en) * | 2000-11-10 | 2002-05-16 | Anoto Ab | Method and device for addressing mail items |
DE10120512A1 (en) * | 2001-04-26 | 2002-10-24 | Siemens Ag | Input of text, commands, SMS messages, etc. to a mobile terminal device such as a mobile phone or PDA by displacement of the device itself over a contact surface to reproduce text in an intuitive and ergonomic manner |
DE10150141A1 (en) * | 2001-10-11 | 2003-04-24 | Siemens Ag | Device for acquisition and representation of movements, e.g. for use in capture of handwriting or sketches drawn on a plasma type display, and also for use as a conventional mouse type device with single hand operation |
US6698660B2 (en) | 2000-09-07 | 2004-03-02 | Anoto Ab | Electronic recording and communication of information |
WO2004082248A1 (en) * | 2003-03-11 | 2004-09-23 | Philips Intellectual Property & Standards Gmbh | Configurable control of a mobile device by means of movement patterns |
WO2005081095A2 (en) * | 2004-02-19 | 2005-09-01 | Siemens Aktiengesellschaft | Method for assessing a virtual writing plane |
DE102004008254A1 (en) * | 2004-02-19 | 2005-09-01 | Siemens Ag | Portable electronic device e.g. mobile telephone, has acceleration sensor realizing movement of device to output acceleration data, and evaluation unit analyzing movement curve to identify characters or symbols as control instructions |
US6985138B2 (en) | 2003-08-29 | 2006-01-10 | Motorola, Inc. | Input writing device |
US7035429B2 (en) | 2000-11-10 | 2006-04-25 | Anoto Ip Lic Handelsbolag | Method and device for addressing mail items |
US7295193B2 (en) | 1999-12-23 | 2007-11-13 | Anoto Ab | Written command |
US7721968B2 (en) | 2003-10-31 | 2010-05-25 | Iota Wireless, Llc | Concurrent data entry for a portable device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4513437A (en) * | 1982-06-30 | 1985-04-23 | International Business Machines Corporation | Data input pen for Signature Verification |
EP0439340A2 (en) * | 1990-01-24 | 1991-07-31 | Nec Corporation | Portable radio telephone set |
WO1994009447A1 (en) * | 1992-10-13 | 1994-04-28 | Zvi Orbach | Apparatus for reading handwriting |
EP0615209A2 (en) * | 1993-03-12 | 1994-09-14 | Kabushiki Kaisha Toshiba | Information input device, position information holding device, and position recognizing system including them |
US5434371A (en) * | 1994-02-01 | 1995-07-18 | A.T. Cross Company | Hand-held electronic writing tool |
WO1995021436A1 (en) * | 1994-02-04 | 1995-08-10 | Baron Motion Communications, Inc. | Improved information input apparatus |
WO1997016799A2 (en) * | 1995-10-31 | 1997-05-09 | Baron Technologies Ltd. | Continuous security system based on motion code |
-
1998
- 1998-03-16 SE SE9800851A patent/SE9800851D0/en unknown
-
1999
- 1999-03-12 AU AU28657/99A patent/AU2865799A/en not_active Abandoned
- 1999-03-12 WO PCT/SE1999/000389 patent/WO1999046909A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4513437A (en) * | 1982-06-30 | 1985-04-23 | International Business Machines Corporation | Data input pen for Signature Verification |
EP0439340A2 (en) * | 1990-01-24 | 1991-07-31 | Nec Corporation | Portable radio telephone set |
WO1994009447A1 (en) * | 1992-10-13 | 1994-04-28 | Zvi Orbach | Apparatus for reading handwriting |
EP0615209A2 (en) * | 1993-03-12 | 1994-09-14 | Kabushiki Kaisha Toshiba | Information input device, position information holding device, and position recognizing system including them |
US5434371A (en) * | 1994-02-01 | 1995-07-18 | A.T. Cross Company | Hand-held electronic writing tool |
WO1995021436A1 (en) * | 1994-02-04 | 1995-08-10 | Baron Motion Communications, Inc. | Improved information input apparatus |
WO1997016799A2 (en) * | 1995-10-31 | 1997-05-09 | Baron Technologies Ltd. | Continuous security system based on motion code |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2347593B (en) * | 1999-01-06 | 2001-05-23 | Motorola Inc | Apparatus and method for using motion to input information to a wireless communication device |
GB2347593A (en) * | 1999-01-06 | 2000-09-06 | Motorola Inc | Use of motion to input information into a radio telephone |
WO2001048590A1 (en) * | 1999-12-23 | 2001-07-05 | Anoto Ab | Written command |
US7295193B2 (en) | 1999-12-23 | 2007-11-13 | Anoto Ab | Written command |
WO2002021252A1 (en) * | 2000-09-07 | 2002-03-14 | Anoto Ab | Electronic recording and communication of information |
US6698660B2 (en) | 2000-09-07 | 2004-03-02 | Anoto Ab | Electronic recording and communication of information |
US7035429B2 (en) | 2000-11-10 | 2006-04-25 | Anoto Ip Lic Handelsbolag | Method and device for addressing mail items |
WO2002039373A1 (en) * | 2000-11-10 | 2002-05-16 | Anoto Ab | Method and device for addressing mail items |
DE10120512A1 (en) * | 2001-04-26 | 2002-10-24 | Siemens Ag | Input of text, commands, SMS messages, etc. to a mobile terminal device such as a mobile phone or PDA by displacement of the device itself over a contact surface to reproduce text in an intuitive and ergonomic manner |
DE10150141A1 (en) * | 2001-10-11 | 2003-04-24 | Siemens Ag | Device for acquisition and representation of movements, e.g. for use in capture of handwriting or sketches drawn on a plasma type display, and also for use as a conventional mouse type device with single hand operation |
WO2004082248A1 (en) * | 2003-03-11 | 2004-09-23 | Philips Intellectual Property & Standards Gmbh | Configurable control of a mobile device by means of movement patterns |
US6985138B2 (en) | 2003-08-29 | 2006-01-10 | Motorola, Inc. | Input writing device |
US7721968B2 (en) | 2003-10-31 | 2010-05-25 | Iota Wireless, Llc | Concurrent data entry for a portable device |
WO2005081095A3 (en) * | 2004-02-19 | 2005-11-17 | Siemens Ag | Method for assessing a virtual writing plane |
DE102004008254A1 (en) * | 2004-02-19 | 2005-09-01 | Siemens Ag | Portable electronic device e.g. mobile telephone, has acceleration sensor realizing movement of device to output acceleration data, and evaluation unit analyzing movement curve to identify characters or symbols as control instructions |
WO2005081095A2 (en) * | 2004-02-19 | 2005-09-01 | Siemens Aktiengesellschaft | Method for assessing a virtual writing plane |
Also Published As
Publication number | Publication date |
---|---|
AU2865799A (en) | 1999-09-27 |
SE9800851D0 (en) | 1998-03-16 |
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