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
  • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
  • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
  • H04M1/27467—Methods of retrieving data
  • H04M1/2748—Methods of retrieving data by matching character strings
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; 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
  • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
  • G06F3/0202—Constructional details or processes of manufacture of the input device
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; 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
  • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
  • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
  • G06F3/0233—Character input methods
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
  • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
  • H03M11/02—Details
  • H03M11/04—Coding of multifunction keys
  • H03M11/06—Coding of multifunction keys by operating the multifunction key itself in different ways
  • H03M11/10—Coding of multifunction keys by operating the multifunction key itself in different ways by methods based on duration or pressure detection of keystrokes
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/02—Constructional features of telephone sets
  • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
• • 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
  • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
  • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
  • H04M1/27467—Methods of retrieving data
  • H04M1/2747—Scrolling on a display
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
  • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
  • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
  • H04M1/72469—User interfaces specially adapted for cordless or mobile telephones for operating the device by selecting functions from two or more displayed items, e.g. menus or icons
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M2250/00—Details of telephonic subscriber devices
  • H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion

Definitions

• the present invention relates to a method for quick text selection from a list by means of a numeric telephone keypad and a construction for the quick and easy selection of letters from an electronic telephone book.
• the invention aims to select text from a list with a scope of between around twenty and several hundred Entries by means of a numeric telephone keypad on an immediately and easily understandable usability as well as on a simple and quick working method, on a low equipment expenditure with low manufacturing costs.
• the invention has for its object to develop a device and a method for quick text selection from a list in the form of an electronic memory by means of a numeric telephone keypad.
• Fig. 1 shows a telephone keypad with letter assignments
• Fig. 2 shows a mechanical arrangement of a telephone keypad in section
• Fig. 3 component representation of the telephone keypad designed according to the invention
• Fig. 4 shows an example of a key operation with pressure measurement
• Fig. 6 single / multi-line display as a screen display
• the telephone keypad designed according to the invention consists of four components, an ordinary digital keypad A, a pressure sensor B, which detects the force exerted on the keys in the range from approx. 10 g to approx. 1000 g, control electronics C, which processes the inputs, and a display D with text display (Fig. 3).
• the pressure sensor B can be present individually for each key. If the buttons are mechanically connected and at the same time are slightly movable as a group relative to the housing, a single pressure sensor can be sufficient to measure the pressure force on any buttons. This is possible because the key release and the pressing force are determined separately.
• a key When a key is triggered, this closes an electrical contact in A.
• the key activation activates sensor B, and the information about the selected key and the pressure force measured at the same time are transmitted to control C. If a button is held longer, the pressure force is measured several times per second and the value is transmitted to the control.
• the controller C evaluates the inputs so that different entries are called up from a stored list and displayed with a response time of ⁇ ls, depending on the selected key and the force exerted.
• the control system must react quickly enough to enable convenient operation and, on the other hand, must not respond to tremors too quickly.
• the person using the construction can react to the display and increase or decrease the pressing force after the start of the key press, or another Select the key until the required entry is displayed. When the button is released, the last selected entry remains on the display.
• the selected entry can be activated, e.g. the desired person is called using the number dial key.
• Applications for the construction are in particular the selection of entries from a stored telephone book, but also in the makeshift entry of text via a numeric keypad.
• another form of feedback can also take place, for example acoustically via a synthetic voice.
• keyboards are a useful object for manual operation.
• people can do a lot more with their hands than just digitally tapping buttons: they can drag, push, rotate, slide, etc.
• the usual keyboards of electronic keyboards only record yes / no information; this is also completely sufficient when entering text or numbers.
• Pressure sensors are used in game consoles and electronic musical instruments, but they have not yet been used effectively in connection with the multiple assignment of input keyboards.
• reaction speed The measurement and evaluation must take place so quickly that the selected list entry is displayed within approx. 100 ms. On the other hand, slight fluctuations or tremors must not have an immediate impact. This can be achieved by averaging several measured values over a time interval of 50-500 ms. In addition, the displayed selection should be retained for a correspondingly long time.
• the gradations of the pressure can be larger or smaller. These gradations, e.g. 30g - 100g - 300g - 600g can either be calculated using an algorithm or can be taken from a table.
• the absolute accuracy of the pressure sensor can be low to keep the effort low. However, the sensor and the controller must react precisely to relative pressure changes to ensure comfort. This can be e.g. through automatic adjustment or adaptation to the forces actually exerted.
• entries from a stored list can be selected in significantly fewer steps than with the usual multiple triggering for switching letters (table, FIG. 5).
• some skill is required on the conventional keyboard: depending on how many entries with identical starting letters there are one, two or very much to be identified.
• the pressure-sensitive numeric keypad designed in accordance with the invention makes it possible to select any entries with a single, variable pressure. A little less clear, but still there is the advantage of a normal text input.
• Text entry is not only easier, but also quicker because the fingers of the operator of the telephone keypad do not have to be lifted from the keys each time.
• the strongest pressure which is maintained for at least two successive measuring cycles, decides.
• the measurements take place at definable time intervals intv.
• the intvl time should be just below the reaction time, oktime * intvl a little bit longer. Since experienced users operate the device a little faster, these two variables can be changed in rough steps by users. This is comparable to the settings for mouse speed and double-click time in computer mice.
• the listing in Fig. 7 describes the algorithm in pseudo code of a Pascal-like programming language. This algorithm meets the following requirements:
• the display always matches the pressure, provided the speed of the display is sufficient. If the pressure is changed faster than the evaluation can see, the display lags behind a little, i.e. H. individual values are not displayed. However, the display does not slow down the input because the value is still registered.
• the algorithm terminates immediately (i.e. within the measurement interval).
• the black dots show where increased or longer pressure leads to a new measured value leading to a new selection (in the listing the lines marked # 1 and # 2 are run through).
• the white dots indicate where a changed pressure is registered and the scroll bar is updated in the display, but without changing the selection (# 1 in the listing).
• the pressure that is marked in the diagram with the rightmost black dot is always effective.
• the diagrams illustrate the following cases:
• FIG. 6 shows examples of a design of the display.
• a scroll bar on the right edge of the display provides visual feedback on the proof print.
• the white rectangle of the scroll bar moves downwards with increased pressure.
• the scroll bar is only visible as long as a key is held down.

Landscapes

• Engineering & Computer Science (AREA)
• Theoretical Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Human Computer Interaction (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Input From Keyboards Or The Like (AREA)
• Telephone Set Structure (AREA)
• User Interface Of Digital Computer (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7885774

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (58)

Citations (4)

Family Cites Families (17)

• 1998
  • 1998-10-28 DE DE19849460A patent/DE19849460B4/de not_active Expired - Fee Related
• 1999
  • 1999-10-24 WO PCT/EP1999/008050 patent/WO2000025500A1/de not_active Ceased
  • 1999-10-24 JP JP2000578979A patent/JP4854852B2/ja not_active Expired - Fee Related
  • 1999-10-24 EP EP99971186A patent/EP1042897A1/de not_active Withdrawn
• 2000
  • 2000-08-25 US US09/582,493 patent/US6735307B1/en not_active Expired - Fee Related

Patent Citations (4)

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