EP0485236B1 - Personenrufempfänger mit einer Anzeige - Google Patents

Personenrufempfänger mit einer Anzeige Download PDF

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Publication number
EP0485236B1
EP0485236B1 EP19910310370 EP91310370A EP0485236B1 EP 0485236 B1 EP0485236 B1 EP 0485236B1 EP 19910310370 EP19910310370 EP 19910310370 EP 91310370 A EP91310370 A EP 91310370A EP 0485236 B1 EP0485236 B1 EP 0485236B1
Authority
EP
European Patent Office
Prior art keywords
display
information
paging receiver
message
lcd
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.)
Expired - Lifetime
Application number
EP19910310370
Other languages
English (en)
French (fr)
Other versions
EP0485236A2 (de
EP0485236A3 (en
Inventor
Tetsumi Ishiguro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Publication of EP0485236A2 publication Critical patent/EP0485236A2/de
Publication of EP0485236A3 publication Critical patent/EP0485236A3/en
Application granted granted Critical
Publication of EP0485236B1 publication Critical patent/EP0485236B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G04G21/04—Input or output devices integrated in time-pieces using radio waves
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/222—Personal calling arrangements or devices, i.e. paging systems
    • G08B5/223—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
    • G08B5/224—Paging receivers with visible signalling details
    • G08B5/228—Paging receivers with visible signalling details combined with other devices having a different main function, e.g. watches

Definitions

  • the present invention relates to a paging receiver having a display which is capable of displaying time information and day-of-week information.
  • a paging receiver extensively used today is usually provided with a liquid crystal display (LCD) or similar display.
  • LCD liquid crystal display
  • a display for this kind of application has a group of display elements assigned to numerical message information and another group of display elements assigned to errors which may occur in the numerical message information.
  • Such display elements are controllably driven by a control unit, e.g., CPU which controls the entire paging receiver.
  • a control unit e.g., CPU which controls the entire paging receiver.
  • One type of conventional paging receiver with a display is capable of displaying time information, e.g., the current time, the time when a message is received, and the time optionally set by the user.
  • Another type of conventional paging receiver with a display is capable of displaying day-of-week information, i.e.. Sunday to Saturday in addition to time information.
  • the paging receiver with such a day-of-week information displaying capability is provided with extra display elements for displaying a day of the week in addition to the display elements assigned to numerical message information and errors.
  • the problem is that the capacity of the control unit or CPU for controlling the individual display units is limited. For this reason, it has been customary to reduce the number of numerical message information display elements and allocate the surplus CPU capacity to the control over the day-of-week information display elements. This, however, reduces the capacity of the numerical message information display elements, i.e., the number of figures that can appear on the display at a time. A CPU having a greater capacity would increase the production cost of the paging receiver.
  • an object of the present invention to provide a paging receiver having a display which is capable of displaying time information and day-of-week information without reducing the number of figures of numerical message information that can appear on the display at a time.
  • a paging receiver capable of displaying time information and day-of-week information of the present invention comprises a display comprising a plurality of numerical message information display elements for displaying numerical message information, and a plurality of error display elements for displaying errors of the numerical message information, and a controller for causing the numerical message information display elements and the error display elements to display time information and day-of-week information, respectively.
  • the paging receiver capable of displaying time information and day-of-week information, shown in FIGS. 1 and 2.
  • the paging receiver generally 10, has an antenna 12, a radio section 14, a DC power source 16, a decoder 18, a controller or CPU 20, a display driver 22, a liquid crystal display (LCD) 24, a DC/DC converter 26, a ROM 28, an alert device driver 30, and an alert device made up of a light emitting diode (LED) 32, a loudspeaker 34, and a vibrator 36.
  • LED light emitting diode
  • a paging signal containing numerical message information and coming in through the antenna 12 is amplified and demodulated by the radio section 14.
  • the demodulated signal is applied to the decoder 18 as a demodulated signal.
  • the decoder 18 compares a address signal contained in the demodulated signal and an address assigned to the receiver 10 and stored in the ROM 28 to see if they are identical. If the address signal is not identical with the stored address, the decoder 18 returns to a standby state. If the address signal is identical with the stored address, the decoder 18 determines whether or not numerical message information exists in the demodulated signal.
  • the decoder 18 sends a status "NO MESSAGE” to the CPU 20; if it is positive, the decoder 18 sends a status "MESSAGE” to the CPU 20 together with numerical message information.
  • the CPU 20 controls the display driver 22 to display the numerical message information on the LCD 24.
  • the decoder 18 sends a predetermined alert drive signal from the ROM 28 to the alert device driver 30.
  • the alert device driver 30 drives at least one of the LED 32, loudspeaker 34 and vibrator 36 so as to alert the user of the receiver 10 to the incoming call.
  • the DC/DC converter 26 boosts the voltage of the power source 16 (1.4 volts) to the operation voltage of the decoder 18 and CPU 20.
  • the LCD 24 includes a group of display elements assigned to numerical message information and a group of display elements adapted to indicate errors which may occur in the numerical message information. Specifically, the LCD 24 displays on the screen 24a an outside-area detection mark 38, a received address display mark 40, a receiving function display mark 42, a low voltage display mark 44, a switch position display mark 46, a repeat call reception mark 48, a message protection mark 50 and a message continuation mark which are symbol marks. The LCD 24 further displays a message reception number 54, numerical message information 56, errors 58, a colon 60, and a colon 62 for displaying time.
  • the LCD 24 is capable of displaying day-of-week information (Sunday to Saturday) 64, i.e., it has day-of-week display elements.
  • the day-of-week display elements are driven by the CPU 20 independently of the numerical message display elements.
  • the problem with this kind of configuration is that the capacity of the CPU 20 has to be great enough to drive not only the numerical message information display elements and error display elements but also the day-of-week display elements, increasing the production cost of the receiver 10.
  • the number of numerical message display elements may be reduced to implement the day-of-week information 64 without resorting to such a great CPU capacity. This, however, reduces the volume of the numerical message information 56, i.e., the number of figures that can be displayed at a time.
  • the paging receiver generally 70, has an antenna 72, a radio section 74, a DC power source 76, a decoder 78, a controller or CPU 80, an LCD 82, a DC/DC converter 84, a ROM 86, an alert device driver 88, and an alert device made up of an LED 90, a loudspeaker 92, and a vibrator 94.
  • the paging receiver generally 70, has an antenna 72, a radio section 74, a DC power source 76, a decoder 78, a controller or CPU 80, an LCD 82, a DC/DC converter 84, a ROM 86, an alert device driver 88, and an alert device made up of an LED 90, a loudspeaker 92, and a vibrator 94.
  • the LCD 82 has a screen 82a for displaying an outside-area detection mark 96, a received address display mark 98, a receiving function display mark 100, a low voltage display mark 102, a switch position display mark 104, a same call display mark 106, a message protection mark 108, and a message continuation mark 110 which are symbol marks. Further, the LCD 82 displays on the screen 82a a message reception number 112, numerical message information 114, errors 116, colons 118 and 120, and day-of-week information 122. The numerical message information appears on a seven segment basis. The errors 116 each appears when numerical message information associated therewith has an error.
  • the colon 118 divides the message reception number 112 and the numerical message information 114 while the colon 120 turns on or repetitively flashes when time is displayed.
  • the day-of-week information is directly printed on a glass covering the front of the LCD 82 or on, for example, a transparent seal provided on the glass.
  • One of the segments which are assigned to the errors 116 turns on in response to day-of-week information, as described in detail later. It should be noted that the day-of-week information may be located outside of the screen 82a of the LCD 82, as shown in FIG. 2.
  • step S1 When the receiver 70 is in a standby state (step S1, FIG. 5), time 124 appears on the screen 82a of the LCD 82, as shown in FIG. 6.
  • a paging receiver with a numerical message come in through the antenna 72 is demodulated by the radio section 74 and then applied to the decoder 78, as stated earlier.
  • the decoder 78 determines whether or not an address signal contained in the demodulated signal is coincident with the address stored in the ROM 86 (S2). If the result of decision is negative, the decoder 78 returns to the standby state; if it is positive, the decoder 78 determines whether or not numerical message information exists in the demodulated signal (S3).
  • the decoder 78 sends a status "NO MESSAGE" to the CPU 80; if it is present, the decoder 78 sends a status "MESSAGE” to the CPU 80 together with the message information.
  • the CPU 80 controls the entire paging receiver 70 and drives the LCD 82.
  • For the CPU 80 use may be made of 4-bit microprocessor ⁇ PD75308G or ⁇ PD7514G (trade name) available from NEC (Japan).
  • the CPU 80 On receiving the status "NO MESSAGE", the CPU 80 causes the LCD 82 to display a tone-only call on the screen 82a thereof, as shown in FIG. 7.
  • the reference numeral 126 designates a message reception number.
  • the CPU 80 determines the number of figures which the message has (S4) and, if it not greater than five, displays the message information on the LCD screen 82a, as shown in FIG. 8.
  • the reference numeral 128 designates a message. When the number of figures is six to seventeen, the message appears in two consecutive pictures on the screen 82a, as shown in FIGS. 9A and 9B. In FIGS.
  • the reference numerals 130 and 132 designate a message and a continuation mark, respectively. Further, when the number of figures is greater than seventeen, the message appears in three consecutive pictures on the screen 82a, as shown in FIGS. 10A-10C. In FIGS. 10A-10C, the reference numeral 134 designates the message.
  • the time when a paging signal is received is displayed by seven numerical message display elements, including "[ ] (bracket)".
  • the seven error display elements associated with such seven numerical message display elements do not have to show whether or not the associated numerical message display elements are correct. That is, the seven error display elements can each be used to display a day of the week when the message is received.
  • the numerical message and other information appearing on the LCD screen 82a disappear (S7) when an exclusive reset switch, not shown, is pressed (S5) or when a predetermined period of time, e.g., twenty seconds expires as counted by a timer. In this condition, the paging receiver 70 awaits a call.
  • the key scanning of the reset switch and the counting operation of the timer are implemented by the CPU 80.
  • the decoder 78 determines that the address signal is identical with the stored address (S2), it sends a predetermined alert drive signal from the ROM 86 to the alert device driver 88.
  • the driver 88 amplifies the alert drive signal to thereby drive at least one of the LED 90, loudspeaker 92 and vibrator 94, alerting the user of the receiver 70 to the incoming call.
  • the DC/DC converter 84 boosts the voltage of the power source 76 (1.4 volts) to the operation voltage of the decoder 78 and CPU 80.
  • the CPU 80 has a function of controllably driving the LCD 82, as stated earlier.
  • the number of LCD segments of the LCD 82, FIG. 4, to be controllably turned on is as follows: Content of Display Number of Segments outside-area mark 96 1 reception address display mark 98 7 receiving function display mark 100 4 low voltage display mark 102 1 switch position display mark 104 2 same call reception mark 106 1 message protection mark 108 1 message continuation mark 110 1 message reception number 112 8 numerical message information 114 7 ⁇ 12 error 116 12 colon 118 (subordinate to mark 110) 0 colon 120 for time 1 total 123
  • the 4-bit microprocessor ⁇ PD75308G or ⁇ PD7514G is capable of controlling the LCD 82 having 123 segments to be selectively turned on.
  • the conventional LCD 24, FIG. 2 has the following segments to be controlled independently of one another: Content of Display Number of Segments outside-area detection mark 38 1 reception address display mark 40 7 receiving function display mark 42 4 low voltage display mark 44 1 switch position display mark 46 2 same call reception mark 48 1 message protection mark 50 1 message continuation mark 62 1 message reception number 54 8 numerical message information 56 7 ⁇ 12 error 58 12 colon 60 (subordinate to mark 110) 0 colon for time 62 1 day-of-week information 62 7 total 130
  • the present invention provides a paging receiver having an LCD in which a numerical message display section and an error display section serve respectively as a time display section and a day-of-week display section at the same time.
  • a numerical message display section and an error display section serve respectively as a time display section and a day-of-week display section at the same time.
  • This allows the size of each LCD display element in the numerical message display section to be increased and allows the number of figures which can appear at a time to be increased, enhancing visibility to a considerable degree.
  • the paging receiver is miniature and low cost since it does not need an exclusive driver for driving the LCD.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Electric Clocks (AREA)

Claims (5)

  1. Rufempfänger, der Zeitinformationen und Wochentaginformationen anzeigen kann, mit:
    einer Anzeigeeinrichtung mit mehreren Anzeigeelementen für numerische Nachrichteninformationen zum Anzeigen numerischer Nachrichteninformationen und mehreren Fehleranzeigeelementen zum Anzeigen von Fehlern der numerischen Nachrichteninformationen; und
    einer Steuereinrichtung zum Veranlassen der Anzeigeelemente für numerische Nachrichteninformationen und der Fehleranzeigeelemente, Zeitinformationen bzw. Wochentaginformationen anzuzeigen.
  2. Rufempfänger nach Anspruch 1, wobei die Anzeigeeinrichtung eine Flüssigkristallanzeige aufweist.
  3. Rufempfänger nach Anspruch 1, wobei die Anzeigeelemente für numerische Nachrichteninformationen jeweils sieben Segmente aufweisen, um auf dem Bildschirm der Anzeigeeinrichtung zu erscheinen, und die Fehleranzeigeelemente jeweils ein einzelnes Segment aufweisen, um auf dem Bildschirm zu erscheinen.
  4. Rufempfänger nach Anspruch 1, wobei die Steuereinrichtung eine Steuervorrichtung zum Steuern des Rufempfängers aufweist.
  5. Rufempfänger nach Anspruch 4, wobei die Steuervorrichtung eine CPU aufweist.
EP19910310370 1990-11-09 1991-11-08 Personenrufempfänger mit einer Anzeige Expired - Lifetime EP0485236B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP305792/90 1990-11-09
JP30579290A JP2794932B2 (ja) 1990-11-09 1990-11-09 無線選択呼出受信機

Publications (3)

Publication Number Publication Date
EP0485236A2 EP0485236A2 (de) 1992-05-13
EP0485236A3 EP0485236A3 (en) 1993-04-07
EP0485236B1 true EP0485236B1 (de) 1998-04-15

Family

ID=17949415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910310370 Expired - Lifetime EP0485236B1 (de) 1990-11-09 1991-11-08 Personenrufempfänger mit einer Anzeige

Country Status (3)

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EP (1) EP0485236B1 (de)
JP (1) JP2794932B2 (de)
DE (1) DE69129259T2 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61262680A (ja) * 1985-05-16 1986-11-20 Casio Comput Co Ltd スケジユ−ル表示装置
JPS6399297U (de) * 1986-12-19 1988-06-27
JPS6448948U (de) * 1987-09-20 1989-03-27
US4872005A (en) * 1988-01-04 1989-10-03 Motorola, Inc. Paging receiver capable of reminding a user of an important message event
US4894649A (en) * 1988-01-07 1990-01-16 Motorola, Inc. Pager having time controlled functions

Also Published As

Publication number Publication date
JP2794932B2 (ja) 1998-09-10
EP0485236A2 (de) 1992-05-13
EP0485236A3 (en) 1993-04-07
DE69129259D1 (de) 1998-05-20
JPH04177927A (ja) 1992-06-25
DE69129259T2 (de) 1998-08-06

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