CA2066574C - Pager and radiotelephone apparatus - Google Patents
Pager and radiotelephone apparatusInfo
- Publication number
- CA2066574C CA2066574C CA002066574A CA2066574A CA2066574C CA 2066574 C CA2066574 C CA 2066574C CA 002066574 A CA002066574 A CA 002066574A CA 2066574 A CA2066574 A CA 2066574A CA 2066574 C CA2066574 C CA 2066574C
- Authority
- CA
- Canada
- Prior art keywords
- pager
- radiotelephone
- paging
- signals
- section
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
- Transceivers (AREA)
Abstract
The present invention encompasses a pager and radiotelephone apparatus (100) having a radio pager section (102) and a cellular radiotelephone section (104) into one unit.
The apparatus (100) may automatically receive a plurality of pages while the cellular radiotelephone section (104) is on, communicating a cellular telephone call, or off and unattended. The received pages are stored in the pager section (102) until the apparatus user acknowledges their receipt by a keystroke. The pages are then transferred to the radiotelephone section (104) and stored in non-volatile memory for later use.
The apparatus (100) may automatically receive a plurality of pages while the cellular radiotelephone section (104) is on, communicating a cellular telephone call, or off and unattended. The received pages are stored in the pager section (102) until the apparatus user acknowledges their receipt by a keystroke. The pages are then transferred to the radiotelephone section (104) and stored in non-volatile memory for later use.
Description
~066571 PAGER AND RADIOTELEPHONE APPARATUS
Fiel-l of the Invention The present invention relates to both the p~ing industry and the cellular radiotelephone industry.
B~ rC~ of the Invention Paging systems are typically one way radio communication systems. An individual wishing to commllnicate with a pager user usually calls a central telephone number to access the central pa~ing control. The central pagin~ control can be either automatic or operated by a human operator. If automatic, the caller keys in the number ~c~ignefl to the individual pager they wish to reach. Once that pager is ~ccessed, the caller can either leave a voice mesS~ge for the paged individual or key in the telephone number to be displayed on the pager's display. Some systems may also ao allow both types of paging.
If the central p~ing control is operated by a human op-erator, the caller typically tells the operator the number of the pager and the mess~ge. The operator then pages the individ-ual, and relays the mess~ge when the paged individual calls the operator.
Once paged, the individual must find a telephone to an-swer the page. This problem can be solved by the paged indi-vidual ca~l ~ ing a cellular radiotelephone. The radiotelephone allows a mobile user to make or leceive a call anywhere within an area covered by the cellular communications sys-tem antenn~s.
One problem with radiotelephone communication is that the radiotelephone user typically pays for inComing as well as outgoing calls. If an unwanted call is made to the ra-diotelephone, therefore, the radiotelephone user must pay for - 20S~57~
.
it at much higher rates than receiving a page. The pager, thelafore, allows the called party to screen incoming calls to determine which telephone number to call back, thereby çlimin~ting the charges for unwanted calls.
While the pager solves some of the limitations of the cel-lular radiotelephone and vice versa, this creates the problem of ca~lyillg two communication devices to remain in contact while moving about an area. There is a need therefo,e for a single device comhining the advantages of both the cellular radiotelephone and the pager.
Sl-mm~ry of the Invention The present invention çncQmp~sses a pager and ~5 radiotelephone apparatus comhining a radio pager and a cellular radiotelephone into one unit, which may automatically receive a plurality of pages while the cellular radiotelephone is on, communicating a cellular telephone call, or off and unattended.
aD
Brief Description of the Drawin~
Fig. 1 shows a block diagram of a pager and radiotelephone apparatus 100 embodying the present invention.
Fig. 2 shows a flow chart for the process executed by the microcomputer of the cellular transceiver 104 in Fig. 1.
Fig. 3 shows a s~ hem~tic of the interface circuitry 108 of the pager and radiotelephone apparatus in Fig. 1.
Descri~tion of a Preferred ~mho-liment The radiotelephone and pager apparatus (100), illustrated in Fig. 1 and embodying the present invention, -- ` 2 0 6 6 5 7 4 - 2a -cn~nhin?~ a radio pager section (102) and a cellular ~ ~iotelerhone sec~ion (104) into one small, lightweight unit.
An e~ e of a radio pager (102) i8 the pager shown and described in Motorols instruction manual number 5 68P81006B85-O, entitled "BRAVO .C~F,RrF-~ Numeric Display Pagers A05JRB/C l\/ro~ 929-932 MHz", and the pager shown ant described in Motorola instruction manual number 68P81044C10-A, entitle~l "SENSAR ,~FE?~S GSC Display Radio Pagers A05JRB/C MO~ B 450470 MHz". An eYsmple of a iotelephone (104) is the portable radiotelephone shown and ~e~l~l in Motorola instruction msnllsl n-lml)er 68P81054E60~, entitled "DYNATAC Cellular Portable Telerhon.~e". All of these instruction mAmlsl~ are pllhli~he l by and av~ s-ble fi~om Motorola C & E Parts, 1313 East Algonquin Road, .~chs~mburg~ Tllinoi8 60196.
A single ~nte~ns (106) is shared by both the pager ~on (102) and r~ te?~p~one section (104). The slnt~nns (106) is coupled ~ia .~,.."~
3~ 2061~57ii micro~trip trAnRmi~sion lines to rece*e (125) and transmit (126) filters in the ~- liote!epl one section (104) and a front-end receive filter (111) in the radio pager section (102).
A rece;ved ~ , with a 930 MHz frequency in the preferred 5 emho~liment, from the front-end filter (111) is ymrlified by the preAmplifier (112) and filtered by the filter (113) in the pager section (102). A 73.75 MHZ crystal o8~ll9-tor (115) signal is multiplied by twelve in multiplier (116) resulting in an 885 MHz injection signal that is mixed in mixer (114) with the 930 MHZ signal from the front-end filter (111), 10 resulting in a 45 MHz signal. A 45 MHz crystal filter (117) attenuates the signal above and below the 45 MHz RF carrier and the resulting signal is demodulated into a 455 kHz signal by the interme-liA~
frequency circuit (118). This signal is then input to an interface circuit (119) in the pager section (102).
~$ The interface circuit (119) of the pager section (102) interfaces theinput signal to the _icroco~l,uter (121) in addition to squaring up the signal and providing power reg~ s-tjon for the rest of the pager section(102). The mic.oco~ter ~121) contsinR a stack for storage of the incoming pages. In the preferred ~mho~liment~ the mic~ocomputer (121) is cApAble of storing ten telephone nllmhers, although any number of telephone nnmhers _aybe stored by ~hsnging the size of the stack. The _ic~ocQ~ ter (121) also controls the pager section (102). Non-volatile memory, also known in the art as a code plug (120), has the i-lPntifis~s~iQn mlmher ~s~Rigne~l to that particular pager section (102) in 25 addition to the opti~nR avAil~qble for the pager. Paging signsl~ or pages transmitted to the pager sec~ion (102) include the i(lçntificAtion number and a teleph~ne nnmh~r. Each time the pager section (102) is turned on, the mi~o~ter (121) reads the data stored in the code plug (120) and uses the read-out j~l~ntifi~AtiQrl number to select its pages leceived on 30 the 930 MHz paging ch~AnnPl The pager/telephQne interface circuitry (108), illustrated in Fig. 3, interfaces the pager sec~ion (102) to the radiotelephone section (104).
This circui~y cQntsin~ a 128-bit shift register (302), a Motorola-type MC14517B integrated circuit, to store pages from the pager, and a dual 35 D-type flip flop, a Motorola-type MC14013BD integrated circuit, to control the power state of the pager section (102). This flip flop is al80 used by the pager section (102) to give a page received indication to the 206657~
The interface circuit (119) of the pager section (102) interfaces the input signal to the microcomputer (121) in addition to squaring up the signal and providing power regulation for the rest of the pager section(102). The 5 mic~ocomputer (121) cor~ nc a stack for storage of the incoming pages. In the preferred embo~liment, the _icrocoLu~ ter (121) is capable of storing ten telephone numbers, although any number of telephone numbers maybe stored by l~h~nging the size of the stack. The microcomputer 10 (121) also controls the pager section (102). Non-volatile memory, also known in the art as a code plug (120), has the identification number S~ssigne~l to that particular pager section (102) in addition to the options available for the pager.
Paging ~ign~l~ or pages transmitted to the pager sectio~ (102) 15 include the identification number and a telephone number.
Each time the pager section (102) is turned on, the microcomp~lter (121) reads the data stored in the code plug (120) and uses the read-out i~lentific~tion number to select its pages received on the 930 MHz ps~gin~ ch~nnel.
a~ The pager/telephone interface circuitry (108), illustrated in Fig. 3, interfaces the pager section (102) to the radiotelephone section (104). This circuity contains a 128-bit shift register (302), a Motorola-type MC14517B integrated circuit, to store pages from the pager, and a dual D-type flip 2~ flop, a Motorola-type MC14013BD integrated circuit, to control the power state of the pager section (102). This flip flop is also used by the pager section (102) to give a page ~ece;ved indication to the radiotelephone sectiQn (104). In addition, the power-on LED (303) for the pager section (102) is also contained 30 in this interface (108).
The radiotelephone section (104) is comprised of a leceiver (122) and transmitter (123) controlled by a microcomputer (124), a Motorola-type 68HC11 microcomputer in the preferred embodiment. The microcomputer (124) is also 206657~
coupled to the display (128) for displaying telephone numbers and status mess~ees~ and to the keypad (127) having numeric pushbuttons for ~ ling phone numbers and function pushbuttons, such recall, clear and send pushbuttons, for 5 controlling operation of radiotelephone section (104). An I/O
bus (110) couples the radiotelephone's microcomputer (124) to the pager/telephone interface circuitry (108). The receive filter of the radiotelephone section (104) is coupled to the radiotelephone receiver (122). A radiotelephone call signal 10 that is rece*ed by the receiver (122) is routed to the microcomputer (124) for proces~ine. A radiotelephone call to be made by the radiotelephone sec~;on (104) is routed by the microcomputer (124) to the transmitter (123) that is coupled to the transmit filter.
~5 The process performed by the miclocomputer (124) in the radiotelephone section (104) of the pager and radiotelephone apparatus (100) is illustrated in Fig. 2. When the apparatus (100) receives a page (201), it is stored in the stack of the pager section's microcomputer (121). This page ao data is in a format that includes characters, such as hyphens, besi~es the telephone number to be called. After the page data is stored, the PAGE RCVD INDICATION line toggles rapidly which causes the output of the comp~rator to go low, thereby clocking in a high into the D ~ip flop (301). The output of the D
25 flip flop (301) sets the page received line (PG RCVD) high and the ON/OFF line low. If the radiotelephone section (104) is off (202) when the page is received, the ON/OFF line going low powers it up (203) in order to inform the user that a page has been ~ece-ved and to give the user a ~h~nce to respond to the 30 page. Additionally, a power-on flag is set so that later the radiotelephone section knows that it was powered up by the pager. If the radiotelephone section (104) is already on when the ON/OFF line goes low, this signal is ignored (204) by the 68HC11 microco~ uter (124). A page counter in the 68HC11 - 206~57~
microcomputer (124) is also incremented (205) enabling the apparatus to keep track of when the stack in the pager section's microcomputer is full.
After the radiotelephone section (104) i9 on, the 5 a~lo~l;ate mess~ge is displayed in the apparatus' display (128) annolln~ng the page receipt. In addition, an ~nmln~i~qtion tone is turned on to aurally inform the user of the page. This tone, in the yrefel-led embo-liment is turned on for ten short bursts. If a page is received and the pager 10 sect;o~'s microcomputer stack is not full, the ms~sage aPAGE" is displayed. If the last page received filled up the stack, the message aPAGFULL" is displayed. Other meSsages ~y also be used. For eY~mrle, if two pages have been recei~red and the pager section's microcomputer stack is not 15 full, the message a 2 PAGE~3" may be displayed. An annnn~tion tone, different from the normal page received tone, is used to aurally inform the user that the memory is full. If the last page received overflows the stack, m~qking the number of pages received greater than five, the message 2D aOVERFLO" is displayed. This last mess~ge will be displayed for each sllccessive page received that overflows the stack.
Once the user knows a page is present, some action by the user (206) i9 necess~ry to move the page from the pager sect;on (102) to the radiotelephone memory for display or lin~. If no action is taken by the user within a certain time penod (208), six seconds in the preferred embo~liment, the power-on flag is çherked (212) to determine if the pager turned on the radiotelephone section ( 104). If the flag is set, the radiotelephone section (104) is poweled down (211) to conserve 30 battery power, while the pager section rem~qin~ on. The flag not set indicates that the user turned on the radiotelephone section (104) and wishes it to remain on.
The user has three options to respond to a page using the keypad (127): a recall pushbutton (RCL) recalls the page 206657~
into the display of the apparatus, a clear (CLR) pushbutton clears the page from the apparatus display and the radiotelephone section's scratchp~ memory, and a send (SND) pushbutton calls the page telephone number stored in 5 scr~tchp~rl memory. If the radiotelephone section (104) is powered down without response by the user, as long as the pager section (102) rçm~in~ powered up, the page data will be stored in the microco~ ter (121) stack for later use. When the radiotelephone section (104) is powered up again, "PAGE"
10 will be displayed to inform the user that a page is waiting.
Powering down the radiotelephone section (104) with the pager sect;on (102) still powered up will cause a unique tone to be emitted to in~lir~te that the pager section (102) is still on and, therefore, using power.
When the SND, CLR, or RCL pushbuttons are activated (209), all the pages (ie. telephone nltmbers) in the pager section's microcomputer stack (121) is moved, one page at a time, from the stack to the shift register (302) in the pagerttelephone interface circuitry (108). Initially, a memory ao pointer in the microcomputer (121) is set to point to the first page in the stack. This page data is moved to the shift register(302) by clocking the page data, on the PGR DATA
line, with the bidirectional PGR CLK line. Once the page data is in the shift register (302), the radiotelephone sec~ion (104) 25 can use the same clock line (PHN CLK) to clock the page data from the shift register (302) on the data line (PHN DATA) to the non-volatile memory of the microcomputer (124). The PGR
RESET line is then pulsed to move the memory pointer to the next page or the next part of the first page and the memory 30 transfer operation i~ repeated (each page may have two parts).
As the page data is clorkefl into the non-volatile memory of the radiotelephone section (104), it is decoded to get rid of all non-numeric characters. The page counter is decremented after each page is clocked into the radiotelephone section's memory. This continues until the page counter is zero.
Once the telephone numbers of each page are stored in non-volatile memory of the radiotelephone section (104), the 5 pushbutton that was activated i8 processe-l (210) to determine what to do with the telephone numbers. No matter which pushbutton was entered, the most recent telephone number will be moved into the radiotelephone section's scr~t~hp~-l memory while the remAining telephone numbers will remain lD in the non-volatile memory. If the SND pushbutton was activated, the telephone number in scratchpad memory is called. If the CLR pushbutton was activated, the scrAtchpA~l memory will be cleared but the telephone numbers stored in the non-volatile memory will remain for later recall. If the ~5 RCL pushbutton was activated, the scrAtrhp~d memory will be displayed but not called. Di~ele~lt loc~tion in the scrAt~hp~-l memory can be recAlle-l by actgivating the RCL
pushbutton followed by a numeric pushbutton.
Once all the page data is moved out of the pager section ao (102), the PAGER ONtOFF line is pulsed high moment~rily by the 68HC11 microcom~uter (124) to toggle the D flip flop (301), thereby turning the pager section (102) off. This clears the pages stored in the pager section's microcomputer (121). The PAGER ON/OFF line is pulsed again to turn the pager section 2~ (102) back on.
One skilled in the art will know that various aspects of the present invention can be changed while still remAinin~
within the scope of the invention. These changes may include the number of pages stored in the microcomputer stack, the 30 number of telephone numbers stored in the radiotelephone section, and the time the radiotelephone section rem~in~ on.
In sllmm~ry, a combination radiotelephone/pager apparatus has been shown that permits operation in both radiotelephone and p~ ing systems.
Fiel-l of the Invention The present invention relates to both the p~ing industry and the cellular radiotelephone industry.
B~ rC~ of the Invention Paging systems are typically one way radio communication systems. An individual wishing to commllnicate with a pager user usually calls a central telephone number to access the central pa~ing control. The central pagin~ control can be either automatic or operated by a human operator. If automatic, the caller keys in the number ~c~ignefl to the individual pager they wish to reach. Once that pager is ~ccessed, the caller can either leave a voice mesS~ge for the paged individual or key in the telephone number to be displayed on the pager's display. Some systems may also ao allow both types of paging.
If the central p~ing control is operated by a human op-erator, the caller typically tells the operator the number of the pager and the mess~ge. The operator then pages the individ-ual, and relays the mess~ge when the paged individual calls the operator.
Once paged, the individual must find a telephone to an-swer the page. This problem can be solved by the paged indi-vidual ca~l ~ ing a cellular radiotelephone. The radiotelephone allows a mobile user to make or leceive a call anywhere within an area covered by the cellular communications sys-tem antenn~s.
One problem with radiotelephone communication is that the radiotelephone user typically pays for inComing as well as outgoing calls. If an unwanted call is made to the ra-diotelephone, therefore, the radiotelephone user must pay for - 20S~57~
.
it at much higher rates than receiving a page. The pager, thelafore, allows the called party to screen incoming calls to determine which telephone number to call back, thereby çlimin~ting the charges for unwanted calls.
While the pager solves some of the limitations of the cel-lular radiotelephone and vice versa, this creates the problem of ca~lyillg two communication devices to remain in contact while moving about an area. There is a need therefo,e for a single device comhining the advantages of both the cellular radiotelephone and the pager.
Sl-mm~ry of the Invention The present invention çncQmp~sses a pager and ~5 radiotelephone apparatus comhining a radio pager and a cellular radiotelephone into one unit, which may automatically receive a plurality of pages while the cellular radiotelephone is on, communicating a cellular telephone call, or off and unattended.
aD
Brief Description of the Drawin~
Fig. 1 shows a block diagram of a pager and radiotelephone apparatus 100 embodying the present invention.
Fig. 2 shows a flow chart for the process executed by the microcomputer of the cellular transceiver 104 in Fig. 1.
Fig. 3 shows a s~ hem~tic of the interface circuitry 108 of the pager and radiotelephone apparatus in Fig. 1.
Descri~tion of a Preferred ~mho-liment The radiotelephone and pager apparatus (100), illustrated in Fig. 1 and embodying the present invention, -- ` 2 0 6 6 5 7 4 - 2a -cn~nhin?~ a radio pager section (102) and a cellular ~ ~iotelerhone sec~ion (104) into one small, lightweight unit.
An e~ e of a radio pager (102) i8 the pager shown and described in Motorols instruction manual number 5 68P81006B85-O, entitled "BRAVO .C~F,RrF-~ Numeric Display Pagers A05JRB/C l\/ro~ 929-932 MHz", and the pager shown ant described in Motorola instruction manual number 68P81044C10-A, entitle~l "SENSAR ,~FE?~S GSC Display Radio Pagers A05JRB/C MO~ B 450470 MHz". An eYsmple of a iotelephone (104) is the portable radiotelephone shown and ~e~l~l in Motorola instruction msnllsl n-lml)er 68P81054E60~, entitled "DYNATAC Cellular Portable Telerhon.~e". All of these instruction mAmlsl~ are pllhli~he l by and av~ s-ble fi~om Motorola C & E Parts, 1313 East Algonquin Road, .~chs~mburg~ Tllinoi8 60196.
A single ~nte~ns (106) is shared by both the pager ~on (102) and r~ te?~p~one section (104). The slnt~nns (106) is coupled ~ia .~,.."~
3~ 2061~57ii micro~trip trAnRmi~sion lines to rece*e (125) and transmit (126) filters in the ~- liote!epl one section (104) and a front-end receive filter (111) in the radio pager section (102).
A rece;ved ~ , with a 930 MHz frequency in the preferred 5 emho~liment, from the front-end filter (111) is ymrlified by the preAmplifier (112) and filtered by the filter (113) in the pager section (102). A 73.75 MHZ crystal o8~ll9-tor (115) signal is multiplied by twelve in multiplier (116) resulting in an 885 MHz injection signal that is mixed in mixer (114) with the 930 MHZ signal from the front-end filter (111), 10 resulting in a 45 MHz signal. A 45 MHz crystal filter (117) attenuates the signal above and below the 45 MHz RF carrier and the resulting signal is demodulated into a 455 kHz signal by the interme-liA~
frequency circuit (118). This signal is then input to an interface circuit (119) in the pager section (102).
~$ The interface circuit (119) of the pager section (102) interfaces theinput signal to the _icroco~l,uter (121) in addition to squaring up the signal and providing power reg~ s-tjon for the rest of the pager section(102). The mic.oco~ter ~121) contsinR a stack for storage of the incoming pages. In the preferred ~mho~liment~ the mic~ocomputer (121) is cApAble of storing ten telephone nllmhers, although any number of telephone nnmhers _aybe stored by ~hsnging the size of the stack. The _ic~ocQ~ ter (121) also controls the pager section (102). Non-volatile memory, also known in the art as a code plug (120), has the i-lPntifis~s~iQn mlmher ~s~Rigne~l to that particular pager section (102) in 25 addition to the opti~nR avAil~qble for the pager. Paging signsl~ or pages transmitted to the pager sec~ion (102) include the i(lçntificAtion number and a teleph~ne nnmh~r. Each time the pager section (102) is turned on, the mi~o~ter (121) reads the data stored in the code plug (120) and uses the read-out j~l~ntifi~AtiQrl number to select its pages leceived on 30 the 930 MHz paging ch~AnnPl The pager/telephQne interface circuitry (108), illustrated in Fig. 3, interfaces the pager sec~ion (102) to the radiotelephone section (104).
This circui~y cQntsin~ a 128-bit shift register (302), a Motorola-type MC14517B integrated circuit, to store pages from the pager, and a dual 35 D-type flip flop, a Motorola-type MC14013BD integrated circuit, to control the power state of the pager section (102). This flip flop is al80 used by the pager section (102) to give a page received indication to the 206657~
The interface circuit (119) of the pager section (102) interfaces the input signal to the microcomputer (121) in addition to squaring up the signal and providing power regulation for the rest of the pager section(102). The 5 mic~ocomputer (121) cor~ nc a stack for storage of the incoming pages. In the preferred embo~liment, the _icrocoLu~ ter (121) is capable of storing ten telephone numbers, although any number of telephone numbers maybe stored by l~h~nging the size of the stack. The microcomputer 10 (121) also controls the pager section (102). Non-volatile memory, also known in the art as a code plug (120), has the identification number S~ssigne~l to that particular pager section (102) in addition to the options available for the pager.
Paging ~ign~l~ or pages transmitted to the pager sectio~ (102) 15 include the identification number and a telephone number.
Each time the pager section (102) is turned on, the microcomp~lter (121) reads the data stored in the code plug (120) and uses the read-out i~lentific~tion number to select its pages received on the 930 MHz ps~gin~ ch~nnel.
a~ The pager/telephone interface circuitry (108), illustrated in Fig. 3, interfaces the pager section (102) to the radiotelephone section (104). This circuity contains a 128-bit shift register (302), a Motorola-type MC14517B integrated circuit, to store pages from the pager, and a dual D-type flip 2~ flop, a Motorola-type MC14013BD integrated circuit, to control the power state of the pager section (102). This flip flop is also used by the pager section (102) to give a page ~ece;ved indication to the radiotelephone sectiQn (104). In addition, the power-on LED (303) for the pager section (102) is also contained 30 in this interface (108).
The radiotelephone section (104) is comprised of a leceiver (122) and transmitter (123) controlled by a microcomputer (124), a Motorola-type 68HC11 microcomputer in the preferred embodiment. The microcomputer (124) is also 206657~
coupled to the display (128) for displaying telephone numbers and status mess~ees~ and to the keypad (127) having numeric pushbuttons for ~ ling phone numbers and function pushbuttons, such recall, clear and send pushbuttons, for 5 controlling operation of radiotelephone section (104). An I/O
bus (110) couples the radiotelephone's microcomputer (124) to the pager/telephone interface circuitry (108). The receive filter of the radiotelephone section (104) is coupled to the radiotelephone receiver (122). A radiotelephone call signal 10 that is rece*ed by the receiver (122) is routed to the microcomputer (124) for proces~ine. A radiotelephone call to be made by the radiotelephone sec~;on (104) is routed by the microcomputer (124) to the transmitter (123) that is coupled to the transmit filter.
~5 The process performed by the miclocomputer (124) in the radiotelephone section (104) of the pager and radiotelephone apparatus (100) is illustrated in Fig. 2. When the apparatus (100) receives a page (201), it is stored in the stack of the pager section's microcomputer (121). This page ao data is in a format that includes characters, such as hyphens, besi~es the telephone number to be called. After the page data is stored, the PAGE RCVD INDICATION line toggles rapidly which causes the output of the comp~rator to go low, thereby clocking in a high into the D ~ip flop (301). The output of the D
25 flip flop (301) sets the page received line (PG RCVD) high and the ON/OFF line low. If the radiotelephone section (104) is off (202) when the page is received, the ON/OFF line going low powers it up (203) in order to inform the user that a page has been ~ece-ved and to give the user a ~h~nce to respond to the 30 page. Additionally, a power-on flag is set so that later the radiotelephone section knows that it was powered up by the pager. If the radiotelephone section (104) is already on when the ON/OFF line goes low, this signal is ignored (204) by the 68HC11 microco~ uter (124). A page counter in the 68HC11 - 206~57~
microcomputer (124) is also incremented (205) enabling the apparatus to keep track of when the stack in the pager section's microcomputer is full.
After the radiotelephone section (104) i9 on, the 5 a~lo~l;ate mess~ge is displayed in the apparatus' display (128) annolln~ng the page receipt. In addition, an ~nmln~i~qtion tone is turned on to aurally inform the user of the page. This tone, in the yrefel-led embo-liment is turned on for ten short bursts. If a page is received and the pager 10 sect;o~'s microcomputer stack is not full, the ms~sage aPAGE" is displayed. If the last page received filled up the stack, the message aPAGFULL" is displayed. Other meSsages ~y also be used. For eY~mrle, if two pages have been recei~red and the pager section's microcomputer stack is not 15 full, the message a 2 PAGE~3" may be displayed. An annnn~tion tone, different from the normal page received tone, is used to aurally inform the user that the memory is full. If the last page received overflows the stack, m~qking the number of pages received greater than five, the message 2D aOVERFLO" is displayed. This last mess~ge will be displayed for each sllccessive page received that overflows the stack.
Once the user knows a page is present, some action by the user (206) i9 necess~ry to move the page from the pager sect;on (102) to the radiotelephone memory for display or lin~. If no action is taken by the user within a certain time penod (208), six seconds in the preferred embo~liment, the power-on flag is çherked (212) to determine if the pager turned on the radiotelephone section ( 104). If the flag is set, the radiotelephone section (104) is poweled down (211) to conserve 30 battery power, while the pager section rem~qin~ on. The flag not set indicates that the user turned on the radiotelephone section (104) and wishes it to remain on.
The user has three options to respond to a page using the keypad (127): a recall pushbutton (RCL) recalls the page 206657~
into the display of the apparatus, a clear (CLR) pushbutton clears the page from the apparatus display and the radiotelephone section's scratchp~ memory, and a send (SND) pushbutton calls the page telephone number stored in 5 scr~tchp~rl memory. If the radiotelephone section (104) is powered down without response by the user, as long as the pager section (102) rçm~in~ powered up, the page data will be stored in the microco~ ter (121) stack for later use. When the radiotelephone section (104) is powered up again, "PAGE"
10 will be displayed to inform the user that a page is waiting.
Powering down the radiotelephone section (104) with the pager sect;on (102) still powered up will cause a unique tone to be emitted to in~lir~te that the pager section (102) is still on and, therefore, using power.
When the SND, CLR, or RCL pushbuttons are activated (209), all the pages (ie. telephone nltmbers) in the pager section's microcomputer stack (121) is moved, one page at a time, from the stack to the shift register (302) in the pagerttelephone interface circuitry (108). Initially, a memory ao pointer in the microcomputer (121) is set to point to the first page in the stack. This page data is moved to the shift register(302) by clocking the page data, on the PGR DATA
line, with the bidirectional PGR CLK line. Once the page data is in the shift register (302), the radiotelephone sec~ion (104) 25 can use the same clock line (PHN CLK) to clock the page data from the shift register (302) on the data line (PHN DATA) to the non-volatile memory of the microcomputer (124). The PGR
RESET line is then pulsed to move the memory pointer to the next page or the next part of the first page and the memory 30 transfer operation i~ repeated (each page may have two parts).
As the page data is clorkefl into the non-volatile memory of the radiotelephone section (104), it is decoded to get rid of all non-numeric characters. The page counter is decremented after each page is clocked into the radiotelephone section's memory. This continues until the page counter is zero.
Once the telephone numbers of each page are stored in non-volatile memory of the radiotelephone section (104), the 5 pushbutton that was activated i8 processe-l (210) to determine what to do with the telephone numbers. No matter which pushbutton was entered, the most recent telephone number will be moved into the radiotelephone section's scr~t~hp~-l memory while the remAining telephone numbers will remain lD in the non-volatile memory. If the SND pushbutton was activated, the telephone number in scratchpad memory is called. If the CLR pushbutton was activated, the scrAtchpA~l memory will be cleared but the telephone numbers stored in the non-volatile memory will remain for later recall. If the ~5 RCL pushbutton was activated, the scrAtrhp~d memory will be displayed but not called. Di~ele~lt loc~tion in the scrAt~hp~-l memory can be recAlle-l by actgivating the RCL
pushbutton followed by a numeric pushbutton.
Once all the page data is moved out of the pager section ao (102), the PAGER ONtOFF line is pulsed high moment~rily by the 68HC11 microcom~uter (124) to toggle the D flip flop (301), thereby turning the pager section (102) off. This clears the pages stored in the pager section's microcomputer (121). The PAGER ON/OFF line is pulsed again to turn the pager section 2~ (102) back on.
One skilled in the art will know that various aspects of the present invention can be changed while still remAinin~
within the scope of the invention. These changes may include the number of pages stored in the microcomputer stack, the 30 number of telephone numbers stored in the radiotelephone section, and the time the radiotelephone section rem~in~ on.
In sllmm~ry, a combination radiotelephone/pager apparatus has been shown that permits operation in both radiotelephone and p~ ing systems.
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A method for controlling a combination pager and radiotelephone apparatus, the combination pager and radiotelephone apparatus including pager means for receiving on a paging radio channel a plurality of radio paging signals each having a telephone number with at least one digit, and the combination pager and radiotelephone apparatus including cellular transceiver means being coupled to the pager means through aninterface circuit and having at least a recall and send pushbutton for transmitting on radiotelephone channels radiotelephone call signals, the interface circuit having a register for storing the telephone numbers, the method comprising the steps of:
receiving and storing in the paging means a plurality of radio paging signals each having a telephone number with at least one digit;
producing an indication signal when each paging signal has been received in the paging means;
moving the stored telephone numbers from the paging means into the register in response to a control signal;
counting in the cellular transceiver means, in response to the indication signal the number of paging signals received;
generating the control signal in response to activation of the recall or send pushbutton;
moving the stored telephone numbers from the register to the cellular transceiver means; and transmitting, in response to activation of the send pushbutton, radiotelephone call signals using the last received read-out telephone number in the cellular transceiver means.
receiving and storing in the paging means a plurality of radio paging signals each having a telephone number with at least one digit;
producing an indication signal when each paging signal has been received in the paging means;
moving the stored telephone numbers from the paging means into the register in response to a control signal;
counting in the cellular transceiver means, in response to the indication signal the number of paging signals received;
generating the control signal in response to activation of the recall or send pushbutton;
moving the stored telephone numbers from the register to the cellular transceiver means; and transmitting, in response to activation of the send pushbutton, radiotelephone call signals using the last received read-out telephone number in the cellular transceiver means.
2. A pager and radiotelephone apparatus for communicating radiotelephone call signals on radiotelephone channels and receiving paging signals on a paging radio channel, the pager and radiotelephone apparatus comprising:
an antenna for receiving the paging signals and communicating the radiotelephonecall signals;
pager means having first filter means coupled to the antenna for receiving paging signals on the paging radio channel and having memory means for storing the received paging signals, each paging signal having a telephone number with at least one digit, the pager means further providing an indication signal when each paging signal has been received, and the pager means being responsive to a first control signal for reading out the stored telephone numbers and being responsive to a second control signal forclearing the memory means;
cellular transceiver means coupled to the pager means, having at least a send pushbutton and a recall pushbutton, and having second filter means coupled to the antenna for receiving radiotelephone call signals on the cellular radio channels, the cellular transceiver means responsive to each indication signal for counting the number of paging signals received, and the cellular transceiver means responsive to activation of the recall pushbutton for generating the first control signal to enable the pager means to read out from the memory means the counted number of stored telephone numbersand thereafter generating the second control signal to enable the pager means to clear the memory means, and the cellular transceiver means responsive to activation of the send pushbutton for transmitting radiotelephone call signals using one of the read out telephone numbers;
a power source for generating a predetermined voltage to power the cellular transceiver means; and interface circuitry, connected to the pager means, the cellular transceiver means, and the power source, the interface circuitry having regulation means for regulating the predetermined voltage to a lower voltage to power the pager means, the interface circuitry additionally having a memory register for temporarily storing the telephone numbers read out from the memory means.
an antenna for receiving the paging signals and communicating the radiotelephonecall signals;
pager means having first filter means coupled to the antenna for receiving paging signals on the paging radio channel and having memory means for storing the received paging signals, each paging signal having a telephone number with at least one digit, the pager means further providing an indication signal when each paging signal has been received, and the pager means being responsive to a first control signal for reading out the stored telephone numbers and being responsive to a second control signal forclearing the memory means;
cellular transceiver means coupled to the pager means, having at least a send pushbutton and a recall pushbutton, and having second filter means coupled to the antenna for receiving radiotelephone call signals on the cellular radio channels, the cellular transceiver means responsive to each indication signal for counting the number of paging signals received, and the cellular transceiver means responsive to activation of the recall pushbutton for generating the first control signal to enable the pager means to read out from the memory means the counted number of stored telephone numbersand thereafter generating the second control signal to enable the pager means to clear the memory means, and the cellular transceiver means responsive to activation of the send pushbutton for transmitting radiotelephone call signals using one of the read out telephone numbers;
a power source for generating a predetermined voltage to power the cellular transceiver means; and interface circuitry, connected to the pager means, the cellular transceiver means, and the power source, the interface circuitry having regulation means for regulating the predetermined voltage to a lower voltage to power the pager means, the interface circuitry additionally having a memory register for temporarily storing the telephone numbers read out from the memory means.
3. The apparatus of claim 2 wherein the antenna is coupled to the first filter means by a transmission line.
4. The apparatus of claim 2 wherein the antenna is coupled to the second filter means by a transmission line.
5. The apparatus of claim 2 wherein the second filter means includes a receive filter and a transmit filter, each filter being coupled to the antenna by a separate transmission line.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US57547390A | 1990-08-30 | 1990-08-30 | |
| US575,473 | 1990-08-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2066574A1 CA2066574A1 (en) | 1992-03-01 |
| CA2066574C true CA2066574C (en) | 1997-01-21 |
Family
ID=24300470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002066574A Expired - Fee Related CA2066574C (en) | 1990-08-30 | 1991-07-18 | Pager and radiotelephone apparatus |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JP2838157B2 (en) |
| KR (1) | KR960001582B1 (en) |
| AR (1) | AR246666A1 (en) |
| AU (1) | AU8420591A (en) |
| BR (1) | BR9105882A (en) |
| CA (1) | CA2066574C (en) |
| ES (1) | ES2091148B1 (en) |
| FR (1) | FR2668279A1 (en) |
| GB (1) | GB2254526B (en) |
| IT (1) | IT1250767B (en) |
| WO (1) | WO1992004797A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04150444A (en) * | 1990-10-11 | 1992-05-22 | Matsushita Electric Ind Co Ltd | Terminal equipment for radio telephone system |
| JP2914021B2 (en) * | 1992-07-23 | 1999-06-28 | 松下電器産業株式会社 | Mobile terminal device |
| US5526398A (en) * | 1993-05-04 | 1996-06-11 | Motorola, Inc. | Method of operating a combination radiotelephone and paging device |
| DE69515239T2 (en) * | 1994-09-27 | 2000-07-13 | Sony Corp | Selective call |
| DE19527792B4 (en) * | 1995-07-19 | 2006-05-04 | Funkwerk Köpenick GmbH | Call forwarding to secondary call receiver |
| US5842141A (en) * | 1996-01-01 | 1998-11-24 | Nokia Mobile Phones Limited | Mobile terminal having user-actuated pager mode |
| JPH09215059A (en) * | 1996-02-03 | 1997-08-15 | Matsushita Electric Ind Co Ltd | Portable telephone equipment |
| US5878351A (en) * | 1996-11-07 | 1999-03-02 | Nokia Mobile Phones Limited | Methods and apparatus for providing delayed transmission of SMS delivery acknowledgement, manual acknowledgement and SMS messages |
| JP3629537B2 (en) | 2001-12-28 | 2005-03-16 | 独立行政法人情報通信研究機構 | Wireless communication method, wireless communication system, wide area wireless communication base station, and wireless communication terminal |
| US8629758B2 (en) | 2011-01-04 | 2014-01-14 | Critical Alert Systems, LLC | System and method for transmitting messages received from a paging network on a paging device to electronic devices |
| US8331960B1 (en) | 2011-06-08 | 2012-12-11 | Critical Alert Systems Llc | Systems and methods for communicating with a paging network operations center through wireless cellular devices |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4412217A (en) * | 1981-09-29 | 1983-10-25 | Motorola, Inc. | Pager with visible display indicating status of memory |
| DE3329267A1 (en) * | 1983-08-12 | 1985-02-28 | Siemens AG, 1000 Berlin und 8000 München | Process in a telephone system for the connection of mobile subscriber terminals |
| US4713808A (en) * | 1985-11-27 | 1987-12-15 | A T & E Corporation | Watch pager system and communication protocol |
| GB2179823A (en) * | 1985-08-28 | 1987-03-11 | Philips Electronic Associated | Communications system |
| US4747122A (en) * | 1986-10-27 | 1988-05-24 | Mobile Communications Corporation Of America | Mobile paging call back system and related method |
| JP2555054B2 (en) * | 1987-03-13 | 1996-11-20 | 株式会社日立製作所 | Compound terminal for mobile communication |
| FI88843C (en) * | 1990-05-21 | 1993-07-12 | Nokia Mobile Phones Ltd | MULTIFUNKTIONSTELEFONANORDNING |
-
1991
- 1991-07-18 GB GB9209283A patent/GB2254526B/en not_active Expired - Fee Related
- 1991-07-18 ES ES09250024A patent/ES2091148B1/en not_active Expired - Fee Related
- 1991-07-18 AU AU84205/91A patent/AU8420591A/en not_active Abandoned
- 1991-07-18 CA CA002066574A patent/CA2066574C/en not_active Expired - Fee Related
- 1991-07-18 BR BR919105882A patent/BR9105882A/en not_active IP Right Cessation
- 1991-07-18 KR KR1019920700994A patent/KR960001582B1/en not_active IP Right Cessation
- 1991-07-18 WO PCT/US1991/005068 patent/WO1992004797A1/en not_active IP Right Cessation
- 1991-07-18 JP JP3513732A patent/JP2838157B2/en not_active Expired - Lifetime
- 1991-08-27 AR AR91320488A patent/AR246666A1/en active
- 1991-08-28 IT ITRM910640A patent/IT1250767B/en active IP Right Grant
- 1991-08-30 FR FR9110805A patent/FR2668279A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| WO1992004797A1 (en) | 1992-03-19 |
| GB9209283D0 (en) | 1992-07-08 |
| GB2254526A (en) | 1992-10-07 |
| ITRM910640A1 (en) | 1992-02-29 |
| BR9105882A (en) | 1992-10-13 |
| CA2066574A1 (en) | 1992-03-01 |
| JPH05502150A (en) | 1993-04-15 |
| ES2091148B1 (en) | 1997-05-01 |
| AR246666A1 (en) | 1994-09-30 |
| KR960001582B1 (en) | 1996-02-02 |
| ES2091148A1 (en) | 1996-10-16 |
| FR2668279B1 (en) | 1995-05-05 |
| GB2254526B (en) | 1995-03-01 |
| ITRM910640A0 (en) | 1991-08-28 |
| FR2668279A1 (en) | 1992-04-24 |
| AU8420591A (en) | 1992-03-30 |
| JP2838157B2 (en) | 1998-12-16 |
| KR920702583A (en) | 1992-09-04 |
| IT1250767B (en) | 1995-04-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed | ||
| MKLA | Lapsed |
Effective date: 19990719 |