EP0404108A1 - Dispositif pour contrôler le rappel d'appel dans un système de recherche personnes - Google Patents

Dispositif pour contrôler le rappel d'appel dans un système de recherche personnes Download PDF

Info

Publication number
EP0404108A1
EP0404108A1 EP90111666A EP90111666A EP0404108A1 EP 0404108 A1 EP0404108 A1 EP 0404108A1 EP 90111666 A EP90111666 A EP 90111666A EP 90111666 A EP90111666 A EP 90111666A EP 0404108 A1 EP0404108 A1 EP 0404108A1
Authority
EP
European Patent Office
Prior art keywords
signal
reminding
call
paging
time
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.)
Granted
Application number
EP90111666A
Other languages
German (de)
English (en)
Other versions
EP0404108B1 (fr
Inventor
Akira C/O Nec Corporation Muramatsu
Tetsumi C/O Nec Corporation 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 EP0404108A1 publication Critical patent/EP0404108A1/fr
Application granted granted Critical
Publication of EP0404108B1 publication Critical patent/EP0404108B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems, e.g. audible personal calling systems
    • G08B3/10—Audible signalling systems, e.g. audible personal calling systems using electric transmission; using electromagnetic transmission
    • G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
    • G08B3/1016—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
    • G08B3/1025—Paging receivers with audible signalling details
    • G08B3/1066—Paging receivers with audible signalling details with other provisions not elsewhere provided for, e.g. turn-off protection

Definitions

  • This invention relates to a control apparatus for a call reminder in a paging system, and more particularly to, a paging control apparatus for reminding a user carrying a receiver in a case where a call signal for reminding the user is included in a radio signal transmitted from a paging station, etc.
  • a conventional paging receiver comprises a call reminder for periodically reminding a user carrying the receiver by using a short alerting call which continues until the user manually discontinues it, so that a call is definitely recognized by the user, for instance, as described in the U.S. Patent No. 4,701,759.
  • the conventional paging receiver has disadvantages in that a period between an initial call and a reminder call is fixed in advance, and an actuating time duration of a call reminder is also fixed in advance. Accordingly, the same call reminding operation is carried out between an emergent call and an ordinary call. As a result, a call reminding is carried out even in an ordinary call having no necessity of the call reminding.
  • a control apparatus for a call reminder in a paging system comprises: means for detecting a reminding control signal in a signal received in a paging receiver; means for determining a conduct of a periodical reminding call as a result of detecting the reminding control signal; means for reminding a user carrying the paging receiver to respond to the received signal; and means for driving the reminding means to remind the user in a driving manner selected from a periodical reminding mode and an ordinary calling mode as a result of determining the conduct.
  • Fig. 1 shows a paging receiver comprising the control apparatus of the preferred embodiment which includes a radio circuit 19 for amplifying and demodulating a radio signal received by an antenna 18, a waveform shaping circuit 20 for shaping a waveform of a demodulated signal supplied from the radio circuit 19, a decoder 21 for carrying out a below described operation, a quartz oscillator 22 for supplying clock signals to the decoder 21, etc. a PROM 23 for storing its own call signal (call number), an alert signal generating time T1 (defined as "first time") and a selecting signal SL of call reminders including a speaker 26, a LED 27, a vibrator 28, etc.
  • the speaker 26, LED 27, vibrator 28 is driven by an alert apparatus driver 90.
  • a RAM 24 having a memory region 24a for storing a reminding control signal XX (to be described later), an amplifying and driving circuit 25 for the call reminders, a reset button 29 connected to the decoder 21, a CPU 30 for controlling the display of message, a liquid crystal display (LCD) 31 for displaying the message, and a switch 32 for turning a power supply 33 on and off.
  • a signal supplied from the waveform shaping circuit 20 is processed to carry out the comparison of a call signal, the detection and analysis of the reminding control signal XX, a periodical reminding control operation according to the detection and analysis thereof, a transfer control operation of the message to the CPU 30, etc.
  • Fig. 2 shows a format of a digital coded signal including the reminding control signal XX.
  • the signal includes a preamble signal 34 for changing an intermittent operation to a continuous operation in the radio circuit 19, a synchronous signal 35 for the synchronism of the receiver with a received signal, a selecting call signal 36 which is compared with the call number stored in the PROM 23 in a state of the synchronism with the received signal, message 37 which is received subsequent to the selecting call signal 36 in a state of a coincidence between the selecting call signal and the call number, and the reminding control signal XX of a two digit signal 38.
  • the signal 38 is inputted by a user in accordance with the degrees of the importance and emergency. The signal 38 may not be inputted when user does not require.
  • Fig. 3 shows four kinds of reminding time signals 45 to 48, one of which is selected by a content of the reminding control signal XX 38.
  • Each of the reminding time signals 45 to 48 includes a common first time T1 which is the alert signal generating time and a corresponding one of non-common second times T2 which is a period between an initial call and a reminder call (T 2A , T 2B , T 2C , and T 2D ), each of which is one period of the corresponding reminding time signal as listed below.
  • "high" durations indicated by 45a, 46a, 47a and 48a provide a generating period of an initial call
  • remaining "high" durations provide a generating period of a reminder call.
  • the two bit signal "00", "01", “10” or "11" is designated in accordance with the degree of an importance or emergency. In a call having no necessity of a reminding call, this designation is not carried out.
  • Fig. 4 shows another set of reminding time signals 55 to 58, each of which includes a corresponding one of non-common first times T1 (T 1A , T 1B , T 1C , and T 1D ) and a common second time T2 equal to one period thereof.
  • the relations between the reminding time signals 55 to 58 and the reminding control signal XX 38 are listed below.
  • "high" durations indicated by 55a, 56a, 57a and 58a provide a generating period of an initial call, and remaining "high" durations provide a generating period of a reminder call.
  • a content of the signal 38 is designated in accordance with the degree of an importance or emergency.
  • the signal as shown in Fig. 2 When the signal as shown in Fig. 2 is transmitted from a paging station to a paging receiver, the signal is received by the antenna 18 of the paging receiver which is turned on by the switch 32, and amplified and demodulated in the radio circuit 19.
  • the signal thus amplified and demodulated is shaped in its waveform in the waveform shaping circuit 20, and the waveform shaped signal is supplied to the decoder 21.
  • the radio circuit 19 is controlled to operate in an intermittent mode by the CPU 30. Then, the radio circuit 19 is controlled to operate in a continuous mode by receiving the preamble signal 34.
  • the decoder 21 detects whether the signal supplied from the waveform shaping circuit 20 have a call signal identical to the call signal CD stored in the PROM 23 by referring to the selecting call signal 36 (step S1). When the identical call signal is detected, it is then detected whether the reminding control signal XX 38 is included therein (step S2).
  • an ordinary calling alert operation is carried out (step S18).
  • the calling alert amplifying and driving circuit 25 is controlled to drive at least one call apparatus selected from the speaker 26, the LED 27, and the vibrator 28 in accordance with the selecting signal SL, by which a user carrying the paging receiver is alerted only one time.
  • the message 37 includes data to be displayed on the LCD 31, the data are transferred to the CPU 30 and displayed on the LCD 31.
  • step S2 the reminding control signal XX 38 is detected in the received signal (step S2), on the other hand, the reminding control signals XX 38 is written into the memory region 24a of the RAM 24, and a periodical reminding operation is carried out as explained below.
  • a reminding time signal is set to have a "high" duration of the first time T1 and a period of the second time T 2A as the reminding time signal 45 shown in Fig. 3 (steps S3 and S4).
  • the reminding control signal XX 38 is "01”, “10”, “11”, respectively, the reminding time signals are set to have periods of the second times T 2B , T 2C and T 2D , respectively, relative to the fixed "high" duration of T1 as the reminding time signals 46 to 48 shown in Fig. 3 (steps S5 to S9).
  • the relations between the reminding time signals 45 to 48 and the reminding control signal XX 38 are as follows.
  • the reminding call is generated to remind the user for the periodical first time of T1, after an internal timer is set to have a time-up period equivalent to a period selected from the periods T 2A , T 2B , T 2C and T 2D according to a content of the reminding control signal XX 38 (step S10).
  • the reminding call is carried out for the first time T1 by selecting one apparatus from the speaker 26, the LED 27, and the vibrator 28 according to the selecting signal SL stored in the PROM 23, while the internal timer times the second time T2 selected from T 2A , T 2B , T 2C and T 2D .
  • the decoder 21 determines whether the reset button 29 is pressed on or not (step S13), and whether the internal timer finishes the time-up of the above set second time T2 (step S14). In a case where the reset button 29 is not pressed on during the first time T1, and the set second time T2 is elapsed without the pressing-on of the reset button 29 (step S11), the decoder 21 controls the internal timer to be reset (step S12).
  • step S10 operation is returned to the step S10, wherein the second reminding call is carried out for the next first time T1, while the internal timer is driven to time the next second time T2.
  • This reminding operation is repeated by non-limited times, unless the reset button 29 is pressed on by the user.
  • the decoder 21 detects it to exit from a loop of the steps S10, S13, S11, S12, and S10, so that the periodical reminding call finishes to remind the user.
  • the decoder 21 resets the internal timer (step S14), and the reminding call is controlled to stop, if the reminding operation continues (if "YES" is found at the step S15), while the reminding control signal XX 38 stored in the memory region 24a of the RAM 24 is erased instantly (step S17), if the reminding operation does not continue. Then, this operation is returned to the step S1.
  • the CPU 30 receives the data which are then displayed on the LCD 31.
  • the reminding time signals 45 to 48 may be replaced by the reminding time signals 55 to 58 as shown in Fig. 4, wherein the second time T2 is set to be a fixed period common to the reminding time signals 55 to 58, while the first time T1 is changed to be T 1A , T 1B , T 1C , and T 1D according to a content of the reminding control signal XX 38 as follows.
  • REMINDING CONTROL SIGNAL 38 REMINDING TIME SIGNALS 55 TO 58 X X ON PERIOD 0 0 T 1A T2 0 1 T 1B T2 1 0 T 1C T2 1 1 T 1D T2
  • the degree of an importance is transmitted from a caller to a callee by changing a "high" duration of a reminding call, a period thereof, etc. Consequently, the following reminding modes are possible to be carried out.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
EP90111666A 1989-06-21 1990-06-20 Dispositif pour contrÔler le rappel d'appel dans un système de recherche personnes Expired - Lifetime EP0404108B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP158888/89 1989-06-21
JP1158888A JP2803174B2 (ja) 1989-06-21 1989-06-21 無線選択呼出受信機における呼出報知制御装置

Publications (2)

Publication Number Publication Date
EP0404108A1 true EP0404108A1 (fr) 1990-12-27
EP0404108B1 EP0404108B1 (fr) 1997-05-21

Family

ID=15681576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90111666A Expired - Lifetime EP0404108B1 (fr) 1989-06-21 1990-06-20 Dispositif pour contrÔler le rappel d'appel dans un système de recherche personnes

Country Status (5)

Country Link
EP (1) EP0404108B1 (fr)
JP (1) JP2803174B2 (fr)
AU (1) AU637799B2 (fr)
CA (1) CA2019549C (fr)
DE (1) DE69030749T2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3047337B2 (ja) * 1991-08-15 2000-05-29 日本電気株式会社 表示機能付き無線選択呼び出し受信
JPH05110496A (ja) * 1991-10-16 1993-04-30 Nec Corp 無線選択呼出受信機
JP2821337B2 (ja) * 1993-04-26 1998-11-05 日本電気株式会社 無線選択呼出受信機
JP3080878B2 (ja) * 1996-04-23 2000-08-28 静岡日本電気株式会社 無線選択呼出受信機およびその呼出方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146153A (en) * 1983-09-06 1985-04-11 Nec Corp Multiple-alert pager
US4701759A (en) * 1984-04-03 1987-10-20 Motorola, Inc. Call reminder for a radio paging device
EP0265064A2 (fr) * 1986-09-16 1988-04-27 Nec Corporation Récepteur d'appel par radio avec alertes multiples

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61105137A (ja) * 1984-10-29 1986-05-23 Nec Corp 表示機能付無線選択呼出受信機
JPS62125038U (fr) * 1986-01-29 1987-08-08
JPS63187435U (fr) * 1987-05-25 1988-11-30

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146153A (en) * 1983-09-06 1985-04-11 Nec Corp Multiple-alert pager
US4701759A (en) * 1984-04-03 1987-10-20 Motorola, Inc. Call reminder for a radio paging device
EP0265064A2 (fr) * 1986-09-16 1988-04-27 Nec Corporation Récepteur d'appel par radio avec alertes multiples

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEC RESEARCH AND DEVELOPMENT *

Also Published As

Publication number Publication date
JPH0324828A (ja) 1991-02-01
CA2019549C (fr) 1994-07-26
EP0404108B1 (fr) 1997-05-21
HK1002242A1 (en) 1998-08-07
JP2803174B2 (ja) 1998-09-24
AU5773490A (en) 1991-01-03
DE69030749D1 (de) 1997-06-26
AU637799B2 (en) 1993-06-10
DE69030749T2 (de) 1997-11-20
CA2019549A1 (fr) 1990-12-21

Similar Documents

Publication Publication Date Title
EP0536122B1 (fr) Avertisseur de rappel de messages pour recepteur d'appels selectif
US4803487A (en) Portable communications receiver with separate information presentation means
US4872005A (en) Paging receiver capable of reminding a user of an important message event
AU592537B2 (en) Pager receiver capable of controlling an internal state by a call signal
HK1007230B (en) Message reminder alert for selective call receiver
JP2977126B2 (ja) 独立した情報表示手段を有する個人メッセージ受信装置
US4010461A (en) Alerting system with dual-address memory
JP2647055B2 (ja) 表示機能付き無線選択呼出受信機
US5332994A (en) Radio pager with power-backup memory for storing uncompleted messages
US6215980B1 (en) Apparatus and method for saving battery power of a paging receiver
HK1001013B (en) Radio pager with power-backup memory for storing uncompleted messages
EP0404108B1 (fr) Dispositif pour contrÔler le rappel d'appel dans un système de recherche personnes
JPH07162926A (ja) 表示機能付無線選択呼出受信機およびその制御方法
HK1002242B (en) Control apparatus for a call reminder in a paging system
JP2701579B2 (ja) 時間的報知手段変化機能付き無線選択呼出受信機
US5422635A (en) Paging receiver capable of avoiding rapid consumption of battery power and method of controlling the same
JPH0362745A (ja) 選択呼出受信機
JP2936647B2 (ja) 表示付無線選択呼出受信機
JPH0750863A (ja) ページング受信機
JP3986100B2 (ja) 電子機器及び表示方法
JPS61105137A (ja) 表示機能付無線選択呼出受信機
JPH05344047A (ja) 無線選択呼び出し受信機
JP3017744U (ja) 受信機のバッテリーセービング回路
JP2822523B2 (ja) データ伝送方法、データ受信機、及び、データ伝送システム
JPH04207724A (ja) 選択呼出受信機

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19900718

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB NL

17Q First examination report despatched

Effective date: 19930301

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NEC CORPORATION

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB NL

REF Corresponds to:

Ref document number: 69030749

Country of ref document: DE

Date of ref document: 19970626

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010611

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010620

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20010628

Year of fee payment: 12

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030101

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020620

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20030101