EP1135917A1 - Mobile communications terminal - Google Patents
Mobile communications terminalInfo
- Publication number
- EP1135917A1 EP1135917A1 EP99966826A EP99966826A EP1135917A1 EP 1135917 A1 EP1135917 A1 EP 1135917A1 EP 99966826 A EP99966826 A EP 99966826A EP 99966826 A EP99966826 A EP 99966826A EP 1135917 A1 EP1135917 A1 EP 1135917A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- display
- display unit
- information
- mobile communication
- communication terminal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0267—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components
- H04W52/027—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components by controlling a display operation or backlight unit
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to a mobile communication terminal, in particular a cell phone, according to the preamble of claim 1.
- Mobile communication terminals or mobile telephones have a display or a display for displaying various types of information.
- This information can relate, for example, to the mobile network operator, the battery level, the phone number or text information etc. transmitted during a communication connection.
- this display is designed in the form of a black and white liquid crystal display.
- UMTS Universal Mobile Telecommunication System
- Voice, graphics, video and other broadband services are combined and offered to subscribers, with the goal being a worldwide, universal mobile radio standard. This means that these communication services should be offered to every subscriber regardless of where they are at the moment, on which network they are currently located or which end device they are currently using.
- An essential part of the desired UMTS mobile radio standard, which is to be introduced from 2001, is the implementation of multimedia features mentioned above, ie a comprehensive and flexible xible range of services with voice, data and image transmission can be provided. For example, video telephony or Internet access etc. should also be possible.
- the corresponding mobile communication terminals must be equipped with color displays, which, however, have a relatively high energy consumption even in an unilluminated operation, since a power of several 10 mW is required to refresh the color point matrix of such color displays alone .
- color displays which, however, have a relatively high energy consumption even in an unilluminated operation, since a power of several 10 mW is required to refresh the color point matrix of such color displays alone .
- certain user information is displayed, which inform the user, for example, about a connection to the mobile radio network operator or the battery level of the mobile terminal, etc.
- the use of conventional color displays would therefore significantly reduce the standby time, but this should be prevented.
- the present invention is therefore based on the object of proposing a mobile communication terminal in which the aforementioned problem is eliminated.
- a mobile communication terminal is to be created which, on the one hand, is suitable for operation in mobile radio networks with multimedia performance features and, on the other hand, minimizes the energy consumption for displaying corresponding information on a display of the mobile communication terminal.
- This object is achieved according to the present invention by a mobile communication terminal having the features of at ⁇ claim 1.
- the subclaims describe preferred and advantageous embodiments of the present invention.
- the display of the mobile communication terminal is divided into two display areas.
- the first display area is intended for the display of (multimedia) communication information and the second display area exclusively for the display of other user information, which is displayed in particular during the standby or standby mode of the terminal.
- the mobile communication terminal according to the invention is designed such that for the duration of the standby mode or for the duration of an operating mode in which no multimedia communication information is to be displayed, only the display area provided for the display of the other user information is activated, while the display area for the display area provided for the communication information remains deactivated.
- the area of the display area provided for displaying the other user information is advantageously small compared to the entire display area or the area of the display area provided for the display of (multimedia) communication information, so that the power consumption in the absence of communication information to be displayed corresponds to this area ratio can be lowered.
- the absence of communication information to be displayed only the display area provided for the display of the other user information is regularly refreshed.
- the display is advantageously designed in the form of an alphanumeric active matrix liquid crystal color display.
- high-resolution color displays video displays
- video displays can be operated in a flow-saving or energy-saving manner, since only a partial area (for example the upper or lower or side edge of the display) is used to display other user information (e.g. status information), which do not correspond to multimedia communication information which is transmitted to the mobile communication terminal in the course of a communication connection.
- a partial area for example the upper or lower or side edge of the display
- other user information e.g. status information
- FIG. 1 shows a simplified block diagram of a mobile communication terminal according to the invention
- FIG. 2a and 2b show representations of the state of the display of the mobile communication terminal shown in FIG. 1 in standby mode and normal mode
- FIGS. 3 and 4 show states of the display in standby mode according to variants of the preferred exemplary embodiment explained with reference to FIGS. 1 and 2.
- FIG. 1 shows a simplified block diagram of a preferred exemplary embodiment of a mobile communication terminal in accordance with the present invention.
- This terminal comprises an antenna 1, a transmitter unit 2 and a receiver unit 3, which together form the air interface represent the terminal and serve to establish a communication link with a base station of the corresponding mobile radio network.
- the transmitting and receiving units 2 and 3 are coupled to a frequency converter 5 and a unit 6 for digital signal processing of the communication information to be transmitted or received.
- a unit 7 is connected to the unit 6 and serves as an interface between the mobile terminal and a user of the mobile terminal (human-machine interface).
- a keyboard 8 and a microphone 9 for inputting information as well as a loudspeaker 10 and a display 13 for outputting information are connected to the human-machine interface 7.
- the display 13 is controlled by a display control 11.
- a unit 4 for supplying energy to the entire mobile terminal is connected to the internal structure of the mobile terminal, which unit may also have a battery voltage regulator for keeping the supply voltage constant.
- the components of the mobile terminal mentioned above and shown in FIG. 1 correspond to the components of conventional mobile telephones that are customary per se, so that there is no need to go into this here.
- a special feature according to the present invention is the design of the display 13, which is provided in particular in the form of a color display, for example an active matrix liquid crystal color display.
- the display 13 is in particular designed in such a way that it is used both for displaying multimedia communication information, which is received by the receiving unit 3, in particular, for example, during the existence of a communication connection, and for displaying other user information, which is not actual communication information, and provide information, for example, about certain states of the mobile terminal.
- the display area of the display 13 is divided into two sub-areas, the first sub-area excluding lent is provided for the visual representation of the (multimedia) communication information mentioned above, while the second partial area is provided in particular for the visual representation of the other user or status information.
- the display control 11 is designed in accordance with the present invention in such a way that, if no communication information is to be displayed (for example in standby or standby mode), it only activates the previously mentioned second partial area of the display area 13 and regularly refreshes or refreshes it by the aforementioned others To display user information while the first sub-area provided for displaying the communication information is deactivated.
- the first sub-area remains deactivated until communication information to be displayed, which is obtained in particular in the course of a multimedia communication connection (eg video telephony, Internet access).
- a multimedia communication connection eg video telephony, Internet access.
- the entire display area of the display 13 is activated and refreshed, so that in the present case both the user or status information already mentioned and the multimedia communication information are shown in the corresponding sub-areas of the display 13. This will be explained in more detail below with reference to the representations shown in FIG. 2.
- FIG. 2a An exemplary structure of the display 13 is shown in FIG. 2a.
- the display 13 is constructed in particular in a matrix-like manner and comprises a plurality of pixel lines 14, some of which are assigned to the sub-area 16 for displaying multimedia communication information and others to the sub-area 15 for displaying other user or status information.
- 2a shows in particular the state of the display 13 in the standby or standby mode of the corresponding mobile communication terminal, ie the case is shown that there is no multimedia communication information to be displayed.
- the display controller 11 shown in FIG only the pixel lines corresponding to sub-area 15 are activated and in particular cyclically refreshed, while the pixel lines of sub-area 16 are deactivated. It should be noted here that in the representations shown in FIGS. 2-4, activated pixels are hatched and deactivated pixels are shown in white.
- the display controller 11 provides a normal refresh of the entire display 13 performed so that the entire ad space, i.e. H. the partial area 15 and the partial area 16 for which display is available and is activated.
- the previously mentioned status information can also be displayed in the partial area 15, while in the partial area 16 the multimedia communication information, such as. B. graphics or images. It is also possible that, in normal operation, communication information is also displayed in the partial area 15 which is actually provided for the status information and which can also be overlaid with the status information.
- the partial area 15 provided for the display of the other user information or status information is provided at the upper edge of the display 13.
- this partial area 15 is generally provided in the peripheral area of the display 13, the partial area 15 also being able to be provided on the lower edge or on the lateral edge of the display 13.
- the display controller 11 (display controller) shown in FIG. 1 has the task of cycling through the individual pixels of the display 13 and supplying them with image information.
- the functionality of the display control 11 can now be modified in such a way that the display control 11 in standby or standby mode, in which no multimedia communication information is displayed in the sub-area 16, only processes the pixels of the sub-area provided for displaying the user information or status information, ie In the exemplary embodiment shown in FIG. 2, only the uppermost pixel rows of the display 13 belonging to the partial area 15 are refreshed and activated cyclically in the standby mode.
- the display controller 11 can have an internal line counter, which is reset with each refresh cycle (refresh cycle) and counts the pixel lines of the display 13 that are currently refreshed by the display controller 11.
- the display controller 11 determines in standby mode based on the internal counter reading that a pixel line 14 of the display 13 is to be refreshed or supplied with image information which belongs to the subarea 16 of the display 13, this line is not Gen control 11 processed and thus not supplied with image information, ie the pixel lines 14 belonging to the partial area 16 of the display 13 remain dark. This process is repeated with every refresh cycle.
- a control counter 12 which also counts the pixel lines processed by the display controller 11. After the display controller 11 has processed the pixel lines belonging to the partial area 15, for example the first 20 pixel lines of the display 13, in the standby or standby mode, the control counter 12 stops it. Analogous to the first variant described above, the rest of the display 13, i. H. the pixel lines 14 belonging to the partial area 16 are not processed by the display control 11, so that these pixel lines are not supplied with image information. In this case too, this process is repeated with each refresh cycle, with the counter reading of the counter 12 being reset at the beginning of each refresh cycle.
- the activation of the display 13 is not limited to the exemplary embodiment explained with reference to FIG. 2, in which entire pixel lines are assigned to the partial areas 15 and 16, respectively. It is also possible to assign a group of individual pixels of the display 13 to the partial areas 15 and 16 without this group forming entire rows of pixels. In this case, the display control 11 or the counter 12 would have to be modified compared to the above description in such a way that not whole pixel rows but individual pixels of the matrix-like display 13 are counted and monitored, analogously to the above procedure when a pixel is reached which corresponds to the Sub-area 16 is assigned, the processing of this pixel by the Show control 11 is suppressed so that no image information is supplied to this pixel.
- the partial area 15 provided for displaying the user information or status information can be provided on a lateral edge of the matrix-like display 13 divided into pixel rows 14 and pixel columns 17. This embodiment is shown in FIG. 3.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19856812 | 1998-12-09 | ||
DE19856812 | 1998-12-09 | ||
PCT/DE1999/003842 WO2000035170A1 (en) | 1998-12-09 | 1999-12-01 | Mobile communications terminal |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1135917A1 true EP1135917A1 (en) | 2001-09-26 |
Family
ID=7890516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99966826A Ceased EP1135917A1 (en) | 1998-12-09 | 1999-12-01 | Mobile communications terminal |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1135917A1 (en) |
CN (1) | CN1336067A (en) |
HU (1) | HUP0105123A2 (en) |
WO (1) | WO2000035170A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4106888B2 (en) * | 2001-09-19 | 2008-06-25 | カシオ計算機株式会社 | Liquid crystal display device and portable terminal device |
JP2004045748A (en) * | 2002-07-11 | 2004-02-12 | Sharp Corp | Display device and display method |
CN104835441B (en) * | 2015-05-25 | 2017-10-31 | 京东方科技集团股份有限公司 | Display control circuit and method, display device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09146499A (en) | 1995-11-22 | 1997-06-06 | Toshiba Corp | Information equipment |
US5841431A (en) * | 1996-11-15 | 1998-11-24 | Intel Corporation | Application of split- and dual-screen LCD panel design in cellular phones |
US5867140A (en) | 1996-11-27 | 1999-02-02 | Motorola, Inc. | Display system and circuit therefor |
US6522417B1 (en) * | 1997-04-28 | 2003-02-18 | Matsushita Electric Industrial Co., Ltd. | Communication terminal device that processes received images and transmits physical quantities that affect the receiving communication terminal device |
-
1999
- 1999-12-01 HU HU0105123A patent/HUP0105123A2/en unknown
- 1999-12-01 CN CN99814292A patent/CN1336067A/en active Pending
- 1999-12-01 WO PCT/DE1999/003842 patent/WO2000035170A1/en active Application Filing
- 1999-12-01 EP EP99966826A patent/EP1135917A1/en not_active Ceased
Non-Patent Citations (1)
Title |
---|
See references of WO0035170A1 * |
Also Published As
Publication number | Publication date |
---|---|
HUP0105123A2 (en) | 2002-04-29 |
CN1336067A (en) | 2002-02-13 |
WO2000035170A1 (en) | 2000-06-15 |
HU0105123D0 (en) | 2002-02-28 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20010511 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
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RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BENQ MOBILE GMBH & CO. OHG |
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19U | Interruption of proceedings before grant |
Effective date: 20070101 |
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19W | Proceedings resumed before grant after interruption of proceedings |
Effective date: 20090803 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: PALM, INC. |
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17Q | First examination report despatched |
Effective date: 20090921 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
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18R | Application refused |
Effective date: 20110127 |