EP0593277A1 - Radio paging receiver - Google Patents

Radio paging receiver Download PDF

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Publication number
EP0593277A1
EP0593277A1 EP93308154A EP93308154A EP0593277A1 EP 0593277 A1 EP0593277 A1 EP 0593277A1 EP 93308154 A EP93308154 A EP 93308154A EP 93308154 A EP93308154 A EP 93308154A EP 0593277 A1 EP0593277 A1 EP 0593277A1
Authority
EP
European Patent Office
Prior art keywords
signal
data
alert
paging receiver
radio paging
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.)
Withdrawn
Application number
EP93308154A
Other languages
German (de)
English (en)
French (fr)
Inventor
Takayuki Asai
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 EP0593277A1 publication Critical patent/EP0593277A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • G08B5/227—Paging receivers with visible signalling details with call or message storage means

Definitions

  • the present invention relates to a radio paging receiver for receiving a signal, containing an address signal and a data signal, and for displaying the data signal.
  • a radio paging receiver is extensively used not only for receiving an exclusive call but also for receiving common information such as stock price information and exchange rate information.
  • a radio signal containing an address signal and a data signal from a base station (not shown) is received at an antenna 301. Then the address signal and the data signal are fed to a receiving section 302 to be demodulated thereby.
  • the demodulated signal is decoded by a decoder 303 and then compared with an address previously stored in a ROM 304. When the decoded address signal and the stored address are equal, the data signal following the address signal is decoded by the decoder 303 and then stored in a storage 305.
  • a display switch 306 is connected to the storage 305. When the display switch 305 is turned on, the data signal stored in the storage 305 is fed to a display 307 and displayed thereon.
  • the storage 305 stores a single data signal. On the reception of new data, the old data signal is replaced with the new data signal, so that the latest information is always stored in the storage 305.
  • some of the conventional paging receivers are capable of storing a plurality of data signals.
  • the problem with the above-mentioned prior art paging receiver is that the user cannot see change of information unless the paging receiver is always put near the user.
  • the stock price information and exchange rate information change every hour, and how they change itself is important information.
  • the user cannot see abrupt changes in the content of stock and exchange in foreign countries where business hours are different.
  • a paging receiver which enables an user to select received data is disclosed in, for example, EP 0317230 A2 filed by the same applicant.
  • the user can set a desired numeral condition for searching the received data.
  • the condition is restricted by the absolute numeral value (for example, stock price ⁇ 150)
  • the user of the paging receiver cannot also see how the stock price or the exchange rate changes.
  • An object of the present invention is to eliminate the above-discussed problem and provide a paging receiver allowing the user to be alerted to changes in information.
  • a radio paging receiver comprises: a latest data storage for storing the received data signal; an old data storage for storing, when a new data signal is received, the data signal stored in said latest data storage and transferred from said latest data storage; a calculating section for calculating a difference between numerical values of numerical information contained in the two data signals stored in said latest and old data storage; a condition setting section for inputting a specific condition relating to a difference between two numerical values; a comparing section for comparing said difference produced by said calculating section and said specific condition and, if the difference calculated by said calculating section satisfies said specific condition, generating an alert signal; and an alert generator responsive to said alert signal for generating an alert.
  • the invention also provides a method for controlling an alert in a radio paging receiver, the method comprising the steps of:
  • an embodiment of the present invention has an antenna 101, a receiving section 102, a decoder 103, a ROM 104, a latest data storage 105, an old data storage 106, a data comparing section 109, a numeral setting section 110 and a numeral setting switch 111, an alert generator 116, a time select section 112, a time adjusting switch 113, a start time determining switch 114, an end time determining switch 115, a display switch 107 and a display 108.
  • the latest data storage 105 stores the latest received data from a base station (not shown).
  • the display switch 107 is connected to the latest data storage 105.
  • the display switch 107 When the display switch 107 is operated, the data signal stored in the latest data storage 105 is delivered to the display section 108 to be displayed thereon.
  • the old data storage 106 stores the data received prior to the latest data.
  • the numeral setting section 110 stores a specific numeral NO1 which is inputted from the numeral setting switch 111 by an user of the paging receiver.
  • the numeral NO1 denotes a threshold value of change in received data.
  • the data comparing section 109 compares the numeral NO1 and the absolute value NO2 (that is to say the magnitude) of a difference between the latest data stored in the latest data storage 105 and the old data stored in the old data storage 106. Then, if the absolute value NO2 is larger than or equal to the numeral NO1, the data comparing section 109 outputs an alert signal a .
  • the time select section 112 has clock and timer function.
  • the timer is adjustable by the switches 113, 114 and 115 for determining the time period of alerting of the alert generator 116.
  • the time select section 112 outputs ON signal b in the determined time period.
  • the alert generator 116 generates an alert sound in response to the alert signal a and the ON signal b .
  • the alert generator 116 comprises an AND gate 201, a tone signal generating circuit 202 and a speaker 203.
  • the signals a and b are inputted to the AND gate 201.
  • the speaker 203 generates an alert sound c .
  • the user of the paging receiver operates the time adjusting switch 113, the start time determining switch 114 and the end time determining switch 115 of the time select section 112 to enter a start time for turning on an alert of the alert generator 116 and an end time for turning it off.
  • the user operates the numeral setting switch 111 to enter the desired threshold numeral NO1.
  • the user wants to be informed when the change in the exchange rate is ⁇ 0.20 or more.
  • the user inputs "0.20" as the numeral NO1 by the numeral set switch 111 as shown in Fig. 4A. Namely, the numeral NO1 displayed in the display 18 increases "0.01" for each depression of the switch 111. The decision of the NO1 is made by two seconds or more depression of the switch 111.
  • the demodulated address signal is decoded by the decoder 103 and then compared with an address stored in the ROM 104 beforehand (steps S2 and S3). If they compare equal, the data signal following the address signal is decoded by the decoder 103 (step S4).
  • the data is transferred to the old data storage 106 (steps S5 to S7).
  • the latest data and the old data are displayed at the display 108 by operating the display switch 107 as shown in Fig. 4C. In this case, the latest data is displayed in a position under the old data.
  • the data comparing section 109 calculates the absolute value NO2 of a difference between the numerical information contained in the data which are stored in the latest data storage 105 and in the old data storage 106 (step S8).
  • the time select section 112 has a timer function. When the start time set by the above method is reached, the select section 112 sends the signal ON b of logical "H" to the alert generator 116 (step S10).
  • the alert generator 116 While the alert generator 116 is receiving the ON signal b , it generates an alert sound c upon receiving the alert signal a . Namely, the alert signal a from the data comparing section 108 and the ON signal b from the time selecting section 112 are applied to the AND gate 201 which delivers an AND of the two inputs to a tone signal generator 202. As stated above, since both the alert signal a and the ON signal b are at a logical "H" level, a signal of "H" level is sent to the tone signal generator 202 only when both of the signals are input.
  • the tone signal generator 202 On receiving the "H" signal, the tone signal generator 202 generates a tone signal and amplifies the tone signal to drive a speaker 203. As a result, an alert tone or sound c is produced from the speaker 203 (step S11).
  • the time select 112 stops sending the ON signal b to the alert generator 116, i.e., the signal b changes from the logical high level "H” to a logical low level “L".
  • the alert generator 116 does not generate the alert sound c even when it receives the alert signal a from the data comparing section 109.
  • an alert sound is produced when the content of the received data signal undergoes a change greater than a predetermined value, thereby allowing the user to grasp important information.
EP93308154A 1992-10-13 1993-10-13 Radio paging receiver Withdrawn EP0593277A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP273936/92 1992-10-13
JP4273936A JPH06125295A (ja) 1992-10-13 1992-10-13 無線情報受信機

Publications (1)

Publication Number Publication Date
EP0593277A1 true EP0593277A1 (en) 1994-04-20

Family

ID=17534634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93308154A Withdrawn EP0593277A1 (en) 1992-10-13 1993-10-13 Radio paging receiver

Country Status (4)

Country Link
EP (1) EP0593277A1 (ja)
JP (1) JPH06125295A (ja)
AU (1) AU4898793A (ja)
CA (1) CA2108350A1 (ja)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317230A2 (en) * 1987-11-13 1989-05-24 Nec Corporation Paging receiver with a message selecting circuit
WO1989006477A1 (en) * 1988-01-07 1989-07-13 Motorola, Inc. Communication receiver with automatic turn on/off
GB2219423A (en) * 1988-06-02 1989-12-06 Multitone Electronics Plc Pager-received data-processing
WO1990013213A1 (en) * 1989-04-14 1990-11-01 Blick Communications Limited Radio pagers
JPH0316326A (ja) * 1989-03-15 1991-01-24 Toshiba Corp 無線通信装置および無線通信システム
US5203014A (en) * 1989-03-15 1993-04-13 Kabushiki Kaisha Toshiba Radio telecommunication device with a display for changed information in received signals

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03127523A (ja) * 1989-10-12 1991-05-30 Nec Corp 無線呼出し受信機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317230A2 (en) * 1987-11-13 1989-05-24 Nec Corporation Paging receiver with a message selecting circuit
WO1989006477A1 (en) * 1988-01-07 1989-07-13 Motorola, Inc. Communication receiver with automatic turn on/off
GB2219423A (en) * 1988-06-02 1989-12-06 Multitone Electronics Plc Pager-received data-processing
JPH0316326A (ja) * 1989-03-15 1991-01-24 Toshiba Corp 無線通信装置および無線通信システム
US5203014A (en) * 1989-03-15 1993-04-13 Kabushiki Kaisha Toshiba Radio telecommunication device with a display for changed information in received signals
WO1990013213A1 (en) * 1989-04-14 1990-11-01 Blick Communications Limited Radio pagers

Also Published As

Publication number Publication date
CA2108350A1 (en) 1994-04-14
AU4898793A (en) 1994-04-28
JPH06125295A (ja) 1994-05-06

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