IlllllllllllllllllllllIIIIIIHIIlllllIlllilllllllllllllllllllllilllllllllll
`
`USO05l48473A
`[11] Patent Number:
`
`5,148,473
`
`[45] Date of Patent:
`
`Sep. 15, 1992
`
` .
`
`United States Patent
`
`(191
`
`Freeland et al.
`
`[543 Eggffrfig RADIOTELEPHONE
`.
`Joseph C. Freeland, Lmdenhurst;
`David M. Hess, Elgin, both of Ill.
`
`Inventors:
`
`[75]
`
`[73] Assignee: Motorola, Inc., Schaurnburg, Ill.
`
`2
`E 1] App
`[22] Filed:
`
`L N _: 77
`°
`3’75
`Oct. 15, 1991
`
`9
`
`[631
`
`Related U.S. Application Data
`Continuation of Ser. No. $75,473, Aug. 30, 1991, aban-
`d°n=d-
`.
`
`Int. Cl.5 ............................................ I-104M 11/00
`[51]
`[52} U.S. Cl. ........................................ 379/59; 379/58;
`379/57
`{58} Field of Search ....................... 379/57, 58, 59, 61;
`340/825.44
`
`l56l
`
`.
`
`Refefences Cited
`U5. PATENT DOCUMENTS
`_
`V"""""""""" 340/82544
`:’§;§%é’2, 13/ 1s“4]§li§?§ at al.
`.................. 340/825.44
`4,713,808 12/1987 Gaskill et al.
`379/57
`4,747,122 5/was Bhagat et al.
`
`379/61
`4,979,205 12/1990 Haraguchi et al.
`5.040.204
`8/1991 Sasaki et al.
`.......................... 379/6l
`
`FOREIGN PATENT DOCUMENTS
`0212761 3/I987 European Pat. Off.
`.
`53-224422 9/1933 jgpan .
`OTHER PUBLICATIONS
`
`Financial Times article, "Designs on Pocketing the
`Cellular Market”, by Geoffrey Charlish, Dec. 11. 1987.
`Published German Application DE3329267, by Kiinzel,
`Feb. 1985 (379—58).
`Primary Examiner—-James L. Dwyer
`Assistant Examiner-—Dwayne D. Bost
`-“"°""?J’: AS’€'"- 0' .1.‘7""-'K¢Im<=*h W- BOW“ "
`[57]
`ABSTRACI‘
`
`The present invention encompasses a pager and radio-
`telephone apparatus (100) having a radio pager section
`(102) and a cellular radiotelephone section (104) into
`one unit. The apparatus (100) may automatically re-
`ceive a plurality of pages while the cellular radiote1e-
`phone section (104) is on, communicating 8 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 key-
`stroke. The pages are then transferred to the radiotele-
`Ph°“e ‘e°‘i°“ (104) and 5‘°"‘d in “°““’°‘a‘“° m°m°"Y
`for late‘ “$6
`
`_
`
`5 Claims, 3 Drawing Sheets
`
`(102
`pm:
`.- — - — — — — — — — - - — - - - - - - - - - — - — - - - * ' — - " * " - ‘ ' ' ’ ""\
`9
`I
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`$5 | 5 5
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`CIRCUITRY W NITHY
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`,112
`114
`IEHOR
`,
`115
`x
`115
`: T W 117
`121.
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`1
`1
`120 :
`
`IF
`cmcumv
`118
`
`N9
`
`REG‘ W
`
`mm
`
`s_-__--......'-—.__-........----—...—-_-——..__..--......-__..a
`nrc.1.5v
`
`mam
`
`06
`
`110
`
`.
`
`r----
`I
`
`EXHIBIT
`
`Petitioner . Kyocera
`
`PX 1033
`
`Kyocera PX 1033_1
`
`

`
`~
`~ t ....
`
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`it
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`..1 REGLlATOR I
`I I
`•
`~ I REGISTER I • '
`I
`r-____ .{1~.
`REG. 1.5V
`
`' ' '
`___ ...
`I ME~Y I :
`
`CODE PLUG
`
`121'
`
`I
`
`WITH
`
`-.. ______ ...
`~~~~~~~~ :
`TELEPHONE
`'
`PAGER/
`'
`'
`•
`
`I
`I
`:
`1
`I
`1
`1
`
`'
`•
`
`'
`
`FIG.1
`
`~o.----..11
`I
`'
`: BATTERY :
`1
`1
`,.. ----
`I 7.5 Volts
`
`1/0
`
`(
`
`110
`
`..... ~ ............ ~ .. ~ ... --..~~~ ... ._. .. ,..
`
`120
`
`1..-·----~~ ............. ..... ~~ ..............
`
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`
`'
`
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`
`REG.
`
`ClM'UTER
`'
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`MICRo-
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`-------
`
`p~ ----~-------
`
`__ ---
`
`R
`
`,..-102
`
`-----------------
`
`113
`
`' ---
`
`119
`
`118
`
`117
`
`CIRCUITRY
`INTERFACE
`
`CIRCUITRY
`
`If
`
`--I
`
`: p~~IER I -
`/"""-
`: ~ MIXER
`
`~------------------..11
`•
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`:
`1125
`'
`r-___ .;.. CE~Lll~ _!~NS~I~E! _ _c_1~'"'
`
`t.EMORY
`WITH
`Cot.fUTER
`MICRO
`
`-
`
`TX FILTER
`
`._____.,__--r-.......... -t
`
`RX FILTER
`
`I ,
`
`~ DSPLAY
`
`128
`
`123 J
`
`KEYPAD
`
`ANTENNA
`
`FILTER
`END
`FRONT
`
`111
`
`Kyocera PX 1033_2
`
`

`
`U.S. Patent
`
`Sep. 15, 1992
`
`Sheet 2 of 3
`
`5,148,473
`
`FIG.2
`
`NO
`
`NO
`
`203
`
`POWER ON PHONE. SET
`POWER-ON FLAG. AND
`START WAIT TIMER
`
`IGNORE ON/OFF
`PULSE
`
`INCREMENT PAGE
`RECEIVED COUNTER AND
`OISPLA Y t.ESSAGE
`
`MOVE PAGES
`FROM PAGER TO
`PHOtE MEMORY
`
`PROCESS USER
`!NlUT
`
`204
`
`205
`
`209
`
`210
`
`NO
`
`CI£CK WAIT
`Tlt.ER
`
`POWER OFF PH0t£
`
`Kyocera PX 1033_3
`
`

`
`U.S. Patent
`
`Sep. 15, 1992
`
`Sheet 3 of 3
`
`5,148,473
`
`B+
`
`PGR
`GND
`
`B+
`
`BATT+
`
`SW1.5V
`
`CLK
`
`302
`
`100
`FIG.3
`
`'f' PHN
`rh DATA
`I p~
`;t RESET
`
`Kyocera PX 1033_4
`
`

`
`PAGER AND RADIOTELEPHONE APPARATUS
`
`This is a continuation of application Ser. No.
`07/575,473, filed Aug. 30, 1991 and now abandoned.
`
`FIELD OF THE INVENTION
`The present invention relates to both the paging in(cid:173)
`dustry and the cellular radiotelephone industry.
`
`SUMMARY OF THE INVENTION
`The present invention encompasses a pager and ra(cid:173)
`diotelephone apparatus combining a radio pager and a
`cellular radiotelephone into one unit, which may auto- 55
`matically receive a plurality of pages while the cellular
`radiotelephone is on, communicating a ceUular tele(cid:173)
`phone call, or off and unattended.
`
`1
`
`5,148,473
`
`2
`DESCRIPTION OF A PREFERRED
`EMBODIMENT
`The radiotelephone and pager apparatus, illustrated
`5 in FIG. 1 and embodying the present invention, com(cid:173)
`bines a radio pager section (102) and a cellular radiotele(cid:173)
`phone section (104) into one small, lightweight unit. An
`example of a radio pager (102) is the pager shown and
`described in Motorola instruction manual number
`10 68P81006B85-0, entitled "BRAVO SERIES Numeric
`BACKGROUND OF THE INVENTION
`Display Pagers AOSJRB/C Models 929-932 MHz", and
`the pager shown and described in Motorola instruction
`Paging systems are typically one way radio commu-
`nication systems. An individual wishing to communi-
`manual number 68P81044Cl0-A, entitled "SENSAR
`SERIES GSC Display Radio Pagers AOSJRB/C Mod-
`cate with a pager user usually calls a central telephone
`number to access the central paging control. The cen- 15 els 450-470 MHz". An example of a radiotelephone
`(104) is the portable radiotelephone shown and de-
`tral paging control can be either automatic or operated
`by a human operator. If automatic, the caller keys in the
`scribed
`in Motorola
`instruction manual number
`number assigned to the individual pager they wish to
`68P81054E60-0, entitled "DYNA TAC Cellular Porta-
`reach. Once that pager is accessed, the caller can either
`ble Telephone". All of these instruction manuals are
`leave a voice message for the paged individual or key in 20 published by and available from Motorola C & E Parts,
`the telephone number to be displayed on the pager's
`1313 East Algonquin Road, Schaumburg, Ill. 60196.
`display. Some systems may also allow both types of
`A single antenna (106) is shared by both the pager
`section (102) and radiotelephone section (104). The
`paging.
`If the central paging control is operated by a human
`antenna (106) is coupled via microstrip transmission
`operator, the caller typically tells the operator the num- 25 lines to receive (12S) and transmit (126) filters in the
`ber of the pager and the message. The operator then
`radiotelephone section (104) and a front-end receive
`fl.lter (111) in the radio pager section (102).
`pages the individual, and relays the message when the
`paged individual calls the operator.
`A received signal, with a 930 MHz frequency in the
`Once paged, the individual must fmd a telephone to
`preferred embodiment, from the front-end filter (111) is
`answer the page. This problem can be solved by the 30 amplified by the preamplifier (112) and filtered by the
`paged individual carrying a cellular radiotelephone.
`fllter (113) in the pager section (102). A 73.75 MHZ
`The radiotelephone allows a mobile user to make or
`crystal oscillator (11S) signal is multiplied by twelve in
`multiplier (116) resulting in an 885 MHz injection signal
`receive a call anywhere within an area covered by the
`cellular communications system antennas.
`that is mixed in mixer (114) with the 930 MHZ signal
`One problem with radiotelephone communication is 35 from the front-end ftlter (111), resulting in a 45 MHz
`that the radiotelephone user typically pays for incoming
`signal. A 45 MHz crystal filter (117) attenuates the
`as well as outgoing calls. If an unwanted call is made to
`signal above and below the 45 MHz RF carrier and the
`the radiotelephone, therefore, the radiotelephone user
`resulting signal is demodulated into a 455 kHz signal by
`must pay for it at much higher rates than receiving a
`the intermediate frequency circuit (118). This signal is
`page. The pager, therefore, allows the called party to 40 then input to an interface circuit (119) in the pager
`screen incoming calls to determine which telephone
`section (102).
`number to call back, thereby eliminating the charges for
`The interface circuit (119) of the pager section(102)
`unwanted calls.
`interfaces the input signal to the microcomputer (121) in
`While the pager solves some of the limitations of the
`addition to squaring up the signal and providing power
`ceUular radiotelephone and vice versa, this creates the 45 regulation for the rest of the pager section (102). The
`problem of carrying two communication devices to
`microcomputer (121) contains a stack for storage of the
`remain in contact while moving about an area. There is _ incoming pages. In the preferred embodiment, the mi-
`a need therefore for a single device combining the ad-
`crocomputer (121) is capable of storing ten telephone
`vantages of both the-cellular radiotelephone and the
`numbers, although any number of telephone numbers
`pager.
`SO maybe stored by changing the size of the stack. The
`microcomputer (121) also controls the pager section
`(102). Non-volatile memory, also known in the art as a
`code plug (120), has the identification number assigned
`to that particular pager section (102) in addition to the
`options available for the pager. Paging signals or pages
`transmitted to the pager section (102) include the identi-
`fication number and a telephone number. Each time the
`pager section (102) is turned on, the microcomputer
`(121) reads the data stored in the code plug (120) and
`60 uses the read-out identification number to select its
`pages received on the 930 MHz paging channel.
`The pager/telephone interface circuitry (108), illus-
`trated in FIG. 3, interfaces the pager section (102) to the
`radiotelephone section (104). This circuity contains a
`65 128-bit shift register (302), a Motorola-type MC14517B
`integrated circuit, to store pages from the pager, and a
`dual D-type flip flop, a Motorola-type MC14013BD
`integrated circuit, to control the power state of the ·
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`FIG. 1 shows a block diagram of a pager and radio-
`telephone apparatus 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 schematic of the interface circuitry
`108 of the pager and radiotelephone apparatus in FIG.
`1.
`
`Kyocera PX 1033_5
`
`

`
`5,148,473
`
`4
`3
`"OVERFLO" is displayed. This last message will be
`pager section (102). This flip flop is also .used by the
`pager section (102) to give a page received indication to
`displayed for each successive page received that over-
`flows the stack.
`the radiotelephone section (104). In addition, the pow-
`er-on LED (303) for the pager section (102) is also
`Once the user knows a page is present, some action by
`contained in this interface (108).
`5 the user (206) is necessary to move the page from the
`The radiotelephone section (104) is comprised of a
`pager section (102) to the radiotelephone memory for
`receiver (122) and transmitter (123) controlled by a
`display or dialing. If no action is taken by the user
`within a certain time period (208), six seconds in the
`microcomputer (124), a Motorola-type 68HC11 mi-
`crocomputer in the preferred embodiment. The mi-
`preferred embodiment, the· power-on flag is checked
`crocomputer (124) is also coupled to the display (128) 10 (212) to determine if the pager turned on the radiotele-
`phone section (104). If the flag is set, the radiotelephone
`for displaying telephone numbers and status messages,
`and to the keypad (127) having numeric pushbuttons for
`section (104) is powered down (211) to conserve battery
`dialing phone numbers and function pushbuttons, such
`power, while the pager section remains on. The flag not
`set indicates that the user turned on the radiotelephone
`as recall, clear and send pushbuttons, for controlling
`operation of radiotelephone section (104). An I/0 bus 15 section (104) and wishes it to remain on.
`(110) couples the radiotelephone's microcomputer (124)
`The user has three options to respond to a page using
`to the pager/telephone interface circuitry· (108). The
`the keypad (127): a recall pushbutton (RCL) recalls the
`receive fdter of the radiotelephone section (104) is cou-
`page into the display of the· apparatus, a clear (CLR)
`pled to the radiotelephone receiver (122). A radiotele-
`pushbutton clears the page from the apparatus display
`phone call signal that is received by the receiver (Ill) is 20 and the radiotelephone section's scratchpad memory,
`routed to the microcomputer (124) for processing. A
`and a send (SND) pushbutton calls the page telephone
`radiotelephone call to be made by the radiotelephone
`number stored in scratchpad memory. If the radiotele-
`section (104) is routed by the microcomputer (124) to
`phone section (104) is powered down without response
`the transmitter (123) that is coupled to the transmit
`by the user, as long as the pager section (102) remains
`fdter.
`25 powered up, the page data will be stored in the mi-
`Tbe process performed by the microcomputer (124)
`crocomputer (121) stack for later use. When the radio-
`in the radiotelephone section (104) of the pager and
`telephone section (104) is powered up again, "PAGE"
`will be displayed to inform the user that a page is wait-
`radiotelephone apparatus (100) is illustrated in FIG. 2.
`When the apparatus (100) receives a page (201), it is
`ing. Powering down the radiotelephone section (104)
`stored in the stack of the pager section's microcomputer 30 with the pager section (102) still powered up will cause
`(121). This page data isjn a format that includes charac-
`a unique tone to be emitted to indicate that the pager
`ters, such as hyphens, besides the telephone number to
`section (102) is still on and, therefore, using power.
`be called. After the page data is stored, the PAGE
`When the SND, CLR, or RCL pushbuttons are acti-
`RCVD INDICATION line toggles rapidly which
`vated (209), all the pages (i.e. telephone numbers) in the
`causes the output of the comparator to go low, thereby 35 pager section's microcomputer stack (Ill) is moved,
`clocking in a high into the D flip flop (301). The output
`one page at a time, from the stack to the shift register
`of the D flip flop (301) sets the page received line (PG
`(302) in the pager/telephone interface circuitry (108).
`RCVD) high and the ON/OFF line low. If the radio-
`Initially, a memory pointer in the microcomputer (121)
`telephone section (104) is off (202) when the page is
`is set to point to the flrst page in the stack. This page
`received, the ON/OFF line going low powers it up 40 data is moved to the shift register (302) by clocking the
`(203) in order to inform the user that a page has been
`page data, on the PGR DATA line, with the bidirec-
`received and to give the user a chance to respond to the
`tional PGR CLK line. Once the page data is in the shift
`page. Additionally, a power-on flag is set so that later
`register (302), the radiotelephone section (104) can use
`the same clock line (PHN CLK) to clock the page data
`the radiotelephone section knows that it was powered
`up by the pager. If the radiotelephone section (104) is 45 from the shift register (302) on the data line (PHN
`already on when the ON/OFF line goes low, this signal
`DATA) to the non-volatile memory of the microcom-
`is ignored (204) by the 68HC11 microcomputer (124). A
`puter (124). The PGR RESET line is then pulsed to
`page counter in the 68HC11 microcomputer (124) is
`move the memory pointer to the next page or the next
`also incremented (205) enabling the apparatus to keep
`part of the fll'St page and the memory transfer operation
`track of when the stack in the pager section's mi- SO is repeated (each page may have two parts). As the page
`crocomputer is full.
`data is clocked into the non-volatile memory of the
`After the radiotelephone section (104) is on, the ap-
`radiotelephone section (104), it is decoded to get rid of
`propriate message is displayed in the apparatus' display.
`all non-numeric characters. The page counter is decre-
`(128) announcing the page receipt. In addition, an an-
`mented after each page is clocked into the radiotele-
`nunication tone is turned on to aurally inform the user S5 phone section's memory. This continues until the page
`of the page. This tone, in the preferred embodiment, is
`counter is zero.
`turned on for ten short bursts. If a page is received and
`Once the telephone numbers of each page are stored
`the pager section's microcomputer stack is not full, the
`in non-volatile memory of the radiotelephone section
`message "PAGE" is displayed. If the last page-received
`(104), the pushbutton that was activated is processed
`filled up the stack, the message "PAGEFULV' is dis- 60 (210) to determine what to do with the telephone num-
`played. Other messages may also be used. For example,
`bers. No matter which pushbutton was entered, the
`if two pages have been received and the pager section's
`most· recent telephone number will· be moved into the
`the message "2
`microcomputer stack is not full,
`radiotelephone section's scratchpad memory while the
`PAGES" may be displayed. An annunciation tone,
`remaining telephone numbers will remain in the non-
`different from the normal page received tone, is used to 6S volatile memory. If the SND pushbutton was activated,
`aurally inform the user that the memory is full. If the
`the telephone number in scratchpad memory is called.
`If the CLR pushbutton was ,ctivated, the scratchpad
`last page received overflows the stack, making the num-
`memory will be cleared but the telephone numbers
`ber of pages received greater than five, the message
`
`Kyocera PX 1033_6
`
`

`
`5,148,473
`
`15
`
`25
`
`5
`stored in the non-volatile memory will remain for later
`recall. If the RCL pushbutton was activated, the
`scratchpad memory will be displayed but not called.
`Different location in the scratchpad memory can be
`recalled by activating the RCL pushbutton followed by 5
`a numeric pushbutton.
`Oilce all the page data is moved out of the pager
`section (102), the PAGER ON/OFF line is pulsed high
`momentarily by the 68HC11 microcomputer (124) to 10
`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
`(102) back on.
`One skilled in the art will know that various aspects
`of the present invention can be changed while still re(cid:173)
`maining within the scope of the invention. These
`changes may include the number of pages stored in the
`microcomputer stack, the number of telephone numbers 20
`stored in the radiotelephone section, and the time the
`radiotelephone section remains on. In summary, a com(cid:173)
`bination radiotelephone/pager apparatus has been
`shown that permits operation in both radiotelephone
`and paging systems.
`We claim:
`1. A method for controlling a combination pager and
`radiotelephone apparatus, the combination pager and
`radiotelephone apparatus including pager means for 30
`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 radiotele(cid:173)
`phone apparatus including cellular transceiver means
`being coupled to the pager means through an interface 35
`circuit and having at least a recall and send pushbutton
`for transmitting on radiotelephone channels radiotele(cid:173)
`phone call signals, the interface circuit having a register
`for storing the telephone numbers, the method compris-
`ing 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
`. ed .
`th
`.
`. al h bee
`stgn
`as
`n recetv m
`e pagtng means;
`moving the stored telephone numbers from the pag(cid:173)
`ing means into the register in response to a control
`signal;
`counting in the cellular transceiver means, in re- 50
`sponse to the indication signal, the number of pag(cid:173)
`ing signals received;
`generating the control signal in response to activation
`of the recall or send pushbutton;
`moving the stored telephone numbers from the regis- 55
`ter to the cellular transceiver means; and
`transmitting, in response to activation of the send
`pushbutton, radiotelephone call signals using the
`
`6
`last received read-out telephone number in the
`cellular transceiver means.
`2. A pager and radiotelephone apparatus for commu(cid:173)
`nicating radiotelephone call signals on radiotelephone
`channels and receiving paging signals on a paging radio
`channel, the pager and radiotelephone apparatus com(cid:173)
`prising:
`an antenna for receiving the paging signals and com(cid:173)
`municating the radiotelephone call 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 stor(cid:173)
`ing 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 ftrst
`control signal for reading out the stored telephone
`numbers and being responsive to a second control
`signal for clearing 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 radiotele(cid:173)
`phone 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 numbers
`and thereafter generating the second control signal
`to enable the pager means to clear the memory
`means, and the cellular transceiver means respon(cid:173)
`sive to activation of the send pushbutton for trans(cid:173)
`mitting radiotelephone call signals using one of the
`read out telephone numbers;
`a power source for generating a predetermined volt(cid:173)
`age 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 fJ.lter 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.
`S. The apparatus of claim 2 wherein the second filter
`means includes a receive fdter and a transmit filter, each
`filter being coupled to the antenna by a separate trans(cid:173)
`mission line.
`• • * * •
`
`40
`
`45
`
`60
`
`65
`
`Kyocera PX 1033_7