I, Noah Oskow, hereby declare under penalty of perjury that the following statements are made
`
`based on personal knowledge and are true and correct:
`
`1. I am fluent in both Japanese and English and have worked as a professional translator
`
`since 2012.
`
`2. My education experience includes two years at Sophia University in Tokyo and a BA
`
`in East Asian Languages and Cultures: Japanese from the University of Kansas.
`
`3. I am a native English speaker.
`
`4. I have been speaking, reading, and writing Japanese for 16 years.
`
`5. I lived and worked in Japan for over six years.
`
`6. My translation experience has covered a wide variety of topics, including many patent
`
`translations.
`
`7. I prepared the attached translation, which is, to the best of my knowledge, a true and
`
`correct translation of Japanese Patent JP07280583.
`
`I understand that willful false statements and the like are punishable by fine or imprisonment, or
`
`both, under 18 U.S.C. Section 1001.
`
`Date: 10/05/2018
`
`________________________
`Noah Oskow
`Translator
`
`IPR2020-00407
`Apple EX1029 Page 1
`
`

`

`(19) Japanese Patent Office (JP)
`
`(12) Open patent publication
`(A)
`
`(51) Int.Cl.６
`
`G01C
`
`G08G
`
`//G01S
`
`21/00
`
`1/005
`
`1/0969
`
`5/02
`
`5/14
`
`Identification symbol Office reference
`number
`Z
`
`Z
`
`(11) Patent application publication number
`Patent disclosure Heisei7-280583
`(43) release date 10/27/1995
`
`F 1
`
`Technical display place
`
`(21) application number
`Japanese patent application6-99360
`
`(22) Filing date 4/13/1994
`
`Request for examination Unclaimed
`Number of claims 2 FD (All 10 terms)
`
`(71) Applicant 591261509
`Ekos Research Co., Ltd.
`2-19-12, Sotokanda, Chiyoda-ku,Tokyo
`
`72) Inventor Seiichi Suzuki
`2-19-12, Sotokanda, Chiyoda-ku,Tokyo
`In Ekosu Research Inc.
`
`(72) Inventor Toshihiro Mori
`2-19-12, Sotokanda,Chiyoda-ku,Tokyo
`In Ekosu Research Inc.
`
`(74) An agent patent attorney
`Takashi Kawai (other 1)
`
`(54) [Title of the invention] Portable navigation device
`
`(57) [summary]
`[purpose] Provided is a portable navigation device which can
`facilitate direction recognition.
`[Constitution] The map drawing unit 28 shows the map drawing
`data 243, character data 24, etc. of the map information storage
`unit 24 as a map screen coincident with the actual orientation on
`display 12 in accordance with the azimuth of the device detected
`by the orientation centimeter 40.
`When the direction of the apparatus coincides with the azimuth of
`the destination or the recommended route, the guidance
`information generating section 20 causes speaker 13 to output the
`guidance sound, and causes display 12 to display an
`arrow indicating the direction of the destination, etc.
`
`IPR2020-00407
`Apple EX1029 Page 2
`
`

`

`( 2 )
`
`NO. 7-280583
`
`【Range of Claims】
`
`【0003】
`
`【Claim 1】“Guidance object information storage”
`refers to that in which at least one of the position
`information of the destination and the route
`information to the destination is stored as a guidance
`object, “current position detection” means for
`detecting the current position of the apparatus main
`body, “guidance target azimuth determining” refers to
`determining an azimuth of the guidance target stored
`in the guidance object information storage, referring
`with respect to a current position detected by the main
`body direction detection, referring to a main body
`direction detection referring to the means for detecting
`an azimuth in which the apparatus body faces. From
`the azimuth of the main apparatus body detected by
`the main body direction detecting means and the
`azimuth of the guidance object judged by the
`guidance target azimuth judging method.
`
`【Claim 2】A map information storage unit that stores
`map information, a display unit that is fixed to the
`main apparatus body and that outputs image
`information, map information stored in the map
`information storage group, and map rendering
`methods for rendering on the display method on the
`basis of the azimuth of the apparatus main body in
`coincidence with the actual orientation.
`
`【DETAILED DESCRIPTION OF THE INVENTION】
`
`【0001】
`
`【Industrial field of application】The present invention
`relates to a portable navigation device.
`
`【0002】
`
`【Conventional technology】
`
`The navigation device shows the current position, the
`direction of the destination, and the route to the
`destination for a person who is unfamiliar with
`geography, and in recent years, for those who move
`about on foot, for whom navigation apparatuses have
`been developed. The portable navigation device
`draws a map around the current position, a mark
`indicating the current position and a route to the
`destination on display. Also, the guidance of the
`current position and the guidance of the course
`direction for going to the destination are outputted in
`voice format. For example, the map displayed on
`display is drawn such that the upper side of the
`display is north. By viewing this map, the carrier
`(guided person) of the portable navigation device can
`recognize the direction in which the user actually
`faces. It makes you recognize the direction to go.
`
`【Problem to be solved by invention】 In a
`conventional navigation device for portable use, for
`example, in a map on a drawn display, even when a
`building serving as a marker is located diagonally to
`the right, sometimes it is that it cannot be easily
`recognized which way is located in the view which you
`are seeing. In such a case, one has to change the
`direction it was facing and compare the actual
`buildings and the circumstances of the surroundings
`with the buildings, etc. on the map. Another example
`is possessing a compass and having to match the
`actual orientation with the orientation on the map as
`drawn. In this way, it is sometimes difficult for the
`guided person to recognize the direction of the target
`and the direction to go in the actual road situation.
`
`【0004】 Therefore, an object of the present
`invention is to provide a portable navigation apparatus
`which can facilitate direction recognition.
`
`【0005】
`
`【Means for solving the problem】 According to a first
`aspect of the present invention, there is provided a
`guidance object information storage means in which
`at least one of position information of a destination
`and route information to a destination is described as
`a target of guidance, a current position detection
`means a guidance target azimuth judging means for
`judging an azimuth of the guidance object stored in
`the guidance object information means with respect to
`the current position detected by the present position
`detecting means, the main body for detecting an
`azimuth in which the main body of the apparatus
`faces an azimuth detecting means, an azimuth of the
`apparatus body detected by the main body direction
`detecting means and the azimuth of the guidance
`target azimuth judging means. According to a second
`aspect of the present invention, there is provided a
`portable navigation apparatus comprising: map
`information storage means for storing map
`information; display means fixed to the main
`apparatus body for outputting image information; map
`information storage means and map rendering means
`for rendering the on-map information stored in said
`main body display means coincident with the actual
`orientation based on the azimuth of said apparatus
`main body detected by said main body direction
`detecting means.
`
`【0006】
`
`【Action】
`
`IPR2020-00407
`Apple EX1029 Page 3
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`

`

`( 3 )
`
`NO. 7-280583
`
`In the portable navigation device according to the first
`aspect, the guidance target azimuth determining
`means determines the azimuth of the guidance target
`stored in the guidance object information storage
`means with respect to the current position detected by
`the current position detection means. Then, the
`guide sound output means outputs the guide sound in
`accordance with the direction of the main body of the
`apparatus determined by the main body orientation
`determining means. In the portable navigation device
`according to the second aspect of the invention, the
`map drawing means coincides the map information
`stored in the map information storage means with the
`actual orientation based on the azimuth of the main
`apparatus body detected by the main body-direction
`detection means and draws on the display means.
`
`【0007】
`
`【Example】 Hereinafter, an embodiment of a
`portable navigation device of the present invention will
`be described in detail with reference to FIGS.1 to 12.
`FIG. 1 shows an appearance of portable navigation
`device 10 according to this embodiment. The portable
`navigation device 10 has a weight and a size enough
`to be able to be placed on the palm of the hand, and
`the display 12 on which the guide information such as
`the map around the current location and the guide
`information is displayed, and a guide sound such as
`guidance sound or "beeping" are outputted from
`speaker 13, a power switch, an input key 14 for
`performing various operations. Guide voice can be
`output from earphone 16 as well.
`
`【0008】FIG. 2 shows the configuration of the
`portable navigation device 10. The portable navigation
`device 10 includes a map information storage unit 24
`in which map information is stored from a guidance
`information generating unit 20 for generating various
`guidance information for carriers of the device, a
`current information processing unit and a position
`measuring unit 26. Further, the portable navigation
`device 10 includes a map drawing section 28 for
`drawing a map, data input section 30 for inputting
`various data by the input key 14, and guidance sound
`signal output section 32 for outputting guidance
`sound. 【0009】 The map information storage unit 24
`stores, as map information, road data 241,
`intersection data 242, map drawing data 243,
`character data 244, photograph information of
`characteristic points, and various areas such as
`hotels, tourist guides, etc. , Information in each area,
`and other data 245 in which voice data for voice
`guidance is stored. The map information storage unit
`24 supplies each map information to the guidance
`information generating unit 20 and the map drawing
`unit 28. As the storage medium of the map
`information storage unit 24, for example, a CD-ROM
`
`(Read Only Memory), an IC card, or a magneto-
`optical disk or a magnetic disk is used.
`
`【0010】Here, the road data 241 includes the
`thickness of each road, the length of the road, the
`coordinate position at each point between the starting
`point and the ending point (longitude, latitude), such
`as the intersection number at the starting point or
`ending point of the road, as the data necessary for
`route guidance. Map drawing data 243 is a data for
`drawing the river water system, mountain topography,
`buildings, routes, roads, etc. on display 12, and each
`data has absolute coordinates specified by longitude
`and latitude there. The map drawing data 243 is
`hierarchized for each scale of the map, and the data
`of the lowest layer is a data for drawing a map which
`is a scale of 1 / 10,000, including narrow allies, shop
`names, etc. This includes detailed data.
`
`【0011】As shown in FIG. 1, character data 244 is
`used for displaying on the map an abbreviated
`number of a feature to be a mark showing a
`department store, a school, or a name of a location
`and a place name (hereinafter referred to as "place
`name, etc."). Character data 244 has data of a
`character string corresponding to each place name,
`etc. and dictionary data composed of font data of all
`characters to be displayed on the map. The character
`string data includes coordinate data indicating the
`absolute coordinates (latitude and longitude) of the
`center point of the character string, that is the
`intersection point of the diagonal line of the rectangle
`determined by the vertical width and the length of the
`character string, and coordinate data and code data
`for specifying the font data (abbreviation is one
`character). Each character string data is linked with
`map drawing data 243 by coordinate data.
`
`【0012】The current position measuring unit 26
`continues to the GPS (Global Positioning System)
`receiver 34, the beacon receiver 36, the distance
`sensor 38, and the direction sensor 40, respectively.
`The GPS receiver 34 receives radio waves of GPS
`satellites, and the current position measuring unit 26
`calculates the absolute position of the portable
`navigation device 20 based on the received data of
`the GPS receiver 34. On the other hand, the beacon
`receiver 36 receives position information from a
`beacon arranged on the road. The azimuth sensor 40
`has a geomagnetism sensor 401 for detecting the
`orientation of the portable navigation device 10 by
`detecting the geomagnetism, and a gyro sensor 402
`such as a gas rate gyroscope or a fiber optic
`gyroscope for detecting the rotational angular velocity.
`
`【0013】Here, the two types of sensors are used
`because the geomagnetic sensor 401 detects the
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`( 4 )
`
`NO. 7-280583
`
`geomagnetism of the mobile navigation device 10
`itself, the structure made of iron, such as a bridge, or
`the like. This is because the magnetic field is detected
`and the direction detection may be erroneous in some
`cases. Accordingly, in the azimuth sensor 40, an
`azimuth detection is performed using a gyro sensor
`402 which is not usually influenced by an external
`magnetic field, and an error of the detected value is
`corrected on the basis of a detection value of the
`geomagnetic sensor 401, whereby accurate azimuth
`detection.
`
`【0014】The azimuth data detected by the direction
`sensor 40 is supplied not only to the current position
`measurement unit 26 but also to the guide information
`generation unit 20 and the map drawing unit 28. The
`distance sensor 264 detects the acceleration of the
`portable navigation device 10, for example, and
`obtains the moving distance by integrating twice.
`Although the current position measuring unit 26 can
`measure the position independently from the GPS
`receiver 34 and the beacon receiver 36, in a place
`where it is impossible to receive from a GPS satellite
`or a beacon, the current position measuring unit 26
`measures the distance sensor 264 and the direction
`sensor The absolute position is calculated by dead
`reckoning navigation using 263.
`
`【0015】The map drawing unit 28 includes a drawing
`CPU (central processing unit) that performs various
`processes for drawing a map, a recommended route,
`an arrow indicating the direction of the route direction
`and the destination, and a map information storage
`unit And a drawing data RAM (random access
`memory) in which various data read from the RAM 24
`are stored. The map drawing unit 28 rotates the map
`around the current position so as to render on display
`12 so that the direction on the drawn map coincides
`with the actual orientation. That is, the coordinate data
`in the map drawing data 243 and the character data
`244 are converted in accordance with the current
`position measured by the current position measuring
`section 26 and the azimuth detected by the direction
`sensor 40, and the map and character after
`coordinate conversion on display 12. The RAM for the
`drawing data of the map drawing unit 28 includes
`storage areas for storing map drawing data 243 after
`coordinate conversion and drawing data of character
`data 244 and other drawing data displayed on the
`map, for example, arrows indicating the current
`position and a storage area for storing drawing data
`such as commands.
`【0016】FIG. 3 schematically shows a storage area
`of each drawing data in the drawing data RAM. The
`storage areas of the respective drawing data are
`linked to each other by the coordinate data of the
`respective drawing data 243, 244, etc., and have a
`layer structure as shown in FIG. 3. That is, the
`
`drawing data RAM has a map layer 50, and a
`character layer 52 as storage areas in which the map
`is drawing data 243 and the character data 244 after
`coordinate conversion are respectively stored. It also
`has a remaining material first layer 54 for storing
`drawing data of arrows indicating the position and
`orientation of the portable navigation device 10 and a
`command layer 56 for storing various commands
`drawing data. By overlapping and developing the data
`of each layer 50, 52, 54, 56 on the bit map memory of
`the display 12, for example, the screen shown in FIG.
`1 is displayed. As the display 12, a liquid crystal
`display, a plasma display or the like is used.
`
`【0017】The data input unit 30 is for the user to input
`various destinations (arrival points) and various
`operation instructions to the portable navigation
`device 10. In the present embodiment, the data input
`unit 30 is mainly composed of a plurality of input keys
`14 shown in FIG. 1 and a touch panel on which an
`input operation is performed by touching the display
`screen of the display 12, but a keyboard, a mouse, a
`light pen, a joystick, a voice recognition device, may
`be used. The guidance voice signal output unit 32
`synthesizes predetermined voice and guidance tone
`according to a command from the guidance
`information generating unit 20 and supplies the signal
`to the voice output terminal 42. For example,
`guidance sounds such as "please turn to the right at
`the next intersection," and guidance sounds such as
`"beep-beep-beep" are outputted from the speaker 13
`or the earphone 16 which are thrown to the sound
`signal output terminal 42.
`
`【0018】The guidance information generating unit 20
`includes a CPU that performs processing for
`outputting various guidance information to the wearer,
`a ROM (read-only memory) in which a predetermined
`program is stored, and input data and the CPU and a
`navigation RAM for storing processing results. The
`guidance information generating unit 20 generates
`navigation information stored in the ROM from the
`current position measured by the current position
`measuring unit 26 and the destination input to the
`data input unit 30 and the road data 241 and the
`intersection data 242 of the map information storage
`unit 24 Based on the program, the recommended
`route to the destination is searched. Also, the
`direction in which the wearer should travel along the
`recommended route is determined from the searched
`route data and the current position measured by the
`current position measuring unit 26.
`
`【0019】The guidance information generating unit 20
`also determines the direction of the destination from
`the coordinate data of the input destination. Then, by
`supplying the various kinds of guidance information as
`the judgment result to the map drawing unit 28 and
`
`IPR2020-00407
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`( 5 )
`
`NO. 7-280583
`
` the guidance audio signal output unit 32, it is possible
`to display an arrow on the display 12, or to turn from
`the speaker 13 "Turn right at the next intersection. "
`Based on the detection value of the azimuth sensor
`40, the guidance information generating section 20
`judges the direction of the recommended route, that
`is, the direction of the traveling navigation device 1
`with respect to the traveling direction of the road
`which is the route and the direction of the destination,
`and instructs the guidance sound signal output unit 32
`and the map drawing unit 28 to display the guidance
`sound output, the arrow, etc. in accordance with the
`direction difference. It should be noted that the data of
`the searched route is composed of road data and
`intersection data to the destination, and these are
`stored in the navigation RAM together with the
`destination data and are read out by the map drawing
`unit 28 and is drawn on the map of the display 12.
`
`【0020】Next, the operation of the embodiment
`configured as described above will be described.
`
`(1) Outline of operation
`
`In the portable navigation device 10, the map on the
`display 12 is rendered so as to rotate in accordance
`with the change in the orientation of the portable
`navigation device 10 around the current position on
`the display map, and the orientation on the map and
`the actual so that the direction coincides. The
`guidance by the portable navigation device 10 is
`performed by displaying a map with the current
`position only on the display 12, with guidance for
`guiding the wearer along the recommended route that
`has been instructed, and a guide informing only of
`directions. Hereinafter, the operation of the portable
`navigation device 10 in each guide will be described
`respectively.
`
`【0021】FIG.4 shows the change in the orientation of
`the carrier m on the actual road and FIG. 5 shows the
`change in the orientation of the carrier m shown in
`FIG. 4 in the case of guiding with only the display of
`the map and the current position In accordance with
`the change in the screen drawn on the display 12. As
`shown in FIG. 4, when the wearer m turns from A to
`B, that is, when the orientation of the portable
`navigation device 10 changes from A to B, the screen
`shown in FIG. 5 (A) is rewritten to the screen as
`shown in (B). That is, the map is rotated around the
`current position by an angle changed by the portable
`navigation device 10 and rendered.
`
`(A) (B) In both screens, the arrow C indicating the
`north direction on the display 12 coincides with the
`actual north direction. Further, the arrow indicating the
`position and orientation of the portable navigation
`device 10 always points in the same direction (the
`upper side of the screen) with respect to the display
`
`12. It is to be noted that, although only characters
`which are generally symbolized as shown in the figure
`are usually displayed on the display 12, by changing
`the mode by pressing a predetermined input key 14, it
`is possible to formal name, place name (address), etc.
`are displayed.
`
`【0022】FIG. 6 shows the change of the screen of
`the display 12 in the case of guiding the wearer along
`the recommended route. In the case where the
`wearer moves along the recommended route K, the
`orientation of the wearer shown in FIG. 6 (A) is
`changed so as to be indicated by an arrow D so as to
`match the direction of the recommended route K as
`shown in FIG. 6 (B) and the map is rotated and the
`large arrow is displayed on the screen, and a
`guidance sound such as "beep-beep-beep" is output
`from the speaker 13 or the earphone 16, for example.
`By watching this arrow or listening to the guidance
`sound, the wearer can easily recognize which
`direction of the recommended route is in the
`landscape actually being watched.
`
`【0023】FIG. 7 shows a change in the screen of the
`display 12 in the case of performing guidance
`informing only the direction of the destination. In the
`case of traveling on the basis of the direction of the
`destination n instead of moving along a specific route,
`the wearer changes his/her direction as indicated by
`the arrow E, and the direction of the destination n and
`the direction of the portable navigation device 10
`Similarly, when the direction coincides with each
`other, display of large arrows and output of guidance
`sound are performed together with rotation display of
`the map. FIG. 8 shows the positional relationship
`between the display 12 and the wearer m. FIF. 5 to 7
`shows the display change when the display 12 and
`the carrier are in the positional relationship shown in
`FIG.8. And, Characters (abbreviations) on the map
`are usually drawn in a fixed direction to the display 12,
`as shown by (A) to (C) in FIG. 8. That is, it is always
`drawn at the same angle as seen from the carrier m.
`
`【0024】FIG. 9 shows a change of the display 12
`screen when the portable person m has rotated the
`portable navigation apparatus 10 on the palm of the
`hand. When the wearer changes the drawing mode of
`the character by depressing the predetermined input
`key 14 by the wearer, the portable navigation device
`10 rotates the map along with the rotation direction of
`the map and draws it. That is, as shown in (A) to (C)
`of FIG. 9, when the carrier m rotates the portable
`navigation device 10 on the palm of the hand,
`characters on the map are oriented with respect to the
`drawing map and is always rendered constant. In this
`case, the wearer can see the character always facing
`the same direction to himself/herself. For example,
`when walking on a road, if changing the orientation of
`
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`

`the portable navigation device 10 without changing its
`own direction and checking the direction of the
`destination or the like by relying on the guide sound
`such as "beep-beep-beep" the character becomes
`easy to see for person m.
`
`【0025】(2)Detailed operation
`
`FIG.10 to 12 show the flow of the operation of the
`portable navigation device 10. First, the guidance
`information generating unit 20 is shown on display 12
`a message asking as to whether he / she has a
`destination, and if the user inputs that there is a
`destination (step 1: Y), the guidance information
`generating unit 20 sets the destination (Step 2). In
`other words, a list of place names of places of
`destination or hiragana names with 50 Japanese
`syllabaries is displayed on display 12. Then, when the
`wearer selects a predetermined place name from the
`destination list or inputs a destination to the data input
`unit 30 by inputting the place name (address) by
`choosing letters from 50 Japanese syllabaries for the
`destination, guidance information generation Unit 20
`stores the destination data in the navigation RAM and
`sets the destination (step 2).
`
`【0026】Next, the guidance information generating
`unit 20 displays on the display 12 a message asking
`whether or not there is a need to guide to the
`destination along the predetermined recommended
`route, and if the wearer inputs it as necessary
`(Step 3), and searches for a route to the destination
`set in step 2 (step 4). That is, based on the road data
`241 and the intersection data 242 in the map
`information storage unit 24, the measured values of
`the current position measuring unit 26, and the set
`destination data, a route from the current position to
`the destination is searched for (step 4). It should be
`noted that the current position may be entered by the
`wearer via the data input unit 30 in the same way as
`the destination. When the route search to the
`destination is completed, a message is displayed on
`display 12 asking whether to draw the orientation of
`the character displayed on the map in the mode
`shown in FIG. 8 or in the mode shown in FIG. 9.
`Then, the mode selected by the wearer is set (step 5).
`
`【0027】Next, the guidance information generating
`unit 20 obtains the azimuth change of the portable
`navigation device 10 within a predetermined time from
`the detection value of the direction sensor 40 (step 6).
`If the direction change is equal to or greater than a
`predetermined angle, for example, 5 °, or 10 ° or more
`(step 6; Y), the map drawing unit 28 transmits the
`orientation detected by the orientation sensor 40 to
`the display 12. The map drawing data 243 read from
`the map information storage unit 24 is coordinate-
`transformed so as to be rotated and drawn (step 7).
`
`( 6 )
`
`NO. 7-280583
`
`The map drawing data 243 subjected to the
`coordinate conversion is stored in the map layer 50
`(FIG. 3) of the drawing data RAM of the map drawing
`unit 28.
`
`【0028】Next, the map drawing unit 28 performs
`coordinate conversion of the character data 244 in
`accordance with the drawing mode set in step 5 (step
`8). In other words, as shown in FIG. 8, when the
`mode of drawing characters at a fixed angle with
`respect to the display 12 is selected, only the
`coordinate data in each character string data of the
`character data 244 is converted. In other words, as
`shown in FIG. 8, when the mode of drawing
`characters at a fixed angle with respect to the display
`12 is selected, only the coordinate data in each
`character string data of the character data 244 is
`converted. On the other hand, as shown in FIG. 9,
`when the mode of displaying the character orientation
`rotated with the map is selected, conversion
`processing is performed not only on the coordinates
`of the character data 244 but also on the font data of
`each character. The map drawing unit 28 stores the
`coordinate-converted character data 244 in the
`character layer 52 of the drawing data RAM.
`
`【0029】Then, together with the data of the current
`position layer 54 and the command layer 56, the map
`drawing data 243 after the coordinate conversion and
`the character data 244 are superimposed and drawn
`on the display 12 (step 9). As a result, on display 12,
`for example, a map screen as shown in FIG. 1 is
`displayed. In case of no destination In step 1,(N) and
`inputting that route guidance is not required in step 4
`(N), draw a map based on the drawing data after the
`coordinate transformation (step 8, step 9) stored in
`each layer 50 – 56 (step 9). That is, the map on
`display 12 is not rotationally displayed.
`
`【0030】Next, the guidance information generating
`unit 20 judges whether there is route data in the
`navigation RAM (step 10). When there is route data
`(step 10; Y), the guidance information generating unit
`20 outputs the output of the arrow and guidance
`sound When the predetermined input key 14 to be
`obtained is pressed by the wearer (step 11; Y), from
`the measurement data of the current position
`measurement unit 26 and the route data stored in the
`navigation RAM, the current position is on the route
`searched for or not (step 12). When the route is on
`the route (step 12; Y), the guidance information
`generating section 20 determines, from the
`intersection data and the road data constituting the
`route data and the detection data of the direction
`sensor 40, whether the direction of the portable
`navigation device 10 is the direction of the route (Step
`13).
`
`IPR2020-00407
`Apple EX1029 Page 7
`
`

`

`【0031】If the orientation of the portable navigation
`device 10 matches the direction of the route (Y in step
`13), the map drawing unit 28 displays a large arrow
`on the display 12 as shown in FIG. 6 (B) (Step 14),
`the guidance speech symbol output unit 32 causes
`the speaker 13 or the earphone 16 to output guidance
`sounds such as "beep-beep-beep" at a large volume
`(step 15). Then, for example, it is determined whether
`the wearer has touched the command (FIG. 3) for
`cancellation of guidance on display 12 and instructed
`to stop guiding (step 16). If it is not instructed to
`cancel guidance (step 16; N), the routine goes to step
`5, and if guidance stop is instructed, let the process
`be ended.
`
`【0032】If it is determined in step 13 that the azimuth
`of the route and the azimuth of the device are not
`coincident (N), the guidance information generating
`unit 20 determines whether the angular difference
`between the direction of the route and the direction of
`the device is within a certain angle, for example, 10 °
`It is determined whether or not there is any (step 17).
`If it is determined that the guidance tone is within a
`certain angle (step 17; Y), the guidance tone is output
`with a small volume (step 18). When it is judged that it
`is not within the fixed angle (step 18; N), move back to
`the step 16. In this way, It is easy to know the
`direction of the route by changing the volume of the
`guidance tone outputted when the azimuth of the
`apparatus approaches the azimuth of the route (step
`17; Y) and when it coincides (step 13; Y). If it is
`determined in step 11 that the predetermined input
`key 14 has not been pressed (N), the process
`proceeds to step 16. If it is determined in step 12 that
`the current position is not on the route (N) A message
`notifying that it is out of the route is displayed on the
`display 12, or a sound is output from the speaker 13
`(step 19), and the process goes to step 16.
`
`【0033】On the other hand, if there is no route data
`(N) in step 10, the guidance information generating
`section 20 judges whether there is destination data in
`the navigation RAM (step 20). When there is
`destination data (step 20; Y), the guidance information
`generating unit 20 calculates the azimuth of the
`destination from the coordinate data included in the
`destination data and the measurement data of the
`current position measuring unit 26 (step 21). Then, it
`is judged whether or not the direction of the
`destination coincides with the azimuth of the
`apparatus with the detected value of the direction
`sensor 40 being coincident (step 22). If it is identical
`(step 22; Y), the figure as indicated by 7 (B), a large
`arrow is displayed on the display 12 (step 23). Then,
`the guidance tone is output with a large volume (step
`24), and the process procee