JP2010258957A - Display controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To notify a user of information indicating the position of an item as an object of list display with respect to the number of all the items. <P>SOLUTION: An on-board device 2 designates an index in transmitting a folder item acquisition request for designating any scope other than a specific scope to a portable telephone set 3, and based on whether or not a folder item acquisition response including an item associated with the designated index has been received from the portable telephone set 3, the on-board device obtains the information of the number of all the items as the measure of the number of all the items held by the portable telephone set 3. When listing the item as the object of list display, the device also displays information related to the position of the item as the object of list display with respect to the number of all the items. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a display control apparatus configured to be able to display a list of items acquired from a device that holds an index and an item in association with each other.

  2. Description of the Related Art In recent years, there has been provided a technique for streaming transfer audio data (for example, music data) from a mobile phone to, for example, an in-vehicle device. On the other hand, there is an AVRCP (audio / video remote control profile) as one of the profiles established in the communication standard of Bluetooth (registered trademark) (hereinafter referred to as BT), and a configuration for connecting AVRCP between devices. Is disclosed (for example, see Patent Document 1).

JP 2008-259068 A

  By the way, in the AVRCP version 1.4 (AVRCP1.4), the in-vehicle device that is the transfer destination of audio data carries the total number of items only when a folder item acquisition request specifying a specific scope is transmitted to the mobile phone. It can be obtained from the telephone. However, when a folder item acquisition request specifying a scope other than a specific scope is sent to the mobile phone, the total number of items cannot be acquired from the mobile phone, and the items to be displayed in the list are the same as the total number of items. There is a problem that it is impossible to notify the user of information on the position of the position.

  The present invention has been made in view of the circumstances described above, and its object is to display a list even when a folder item acquisition request specifying a scope other than a specific scope is transmitted to a device. It is an object of the present invention to provide a display control device capable of notifying a user of information on the position of an item with respect to the total number of items and improving operability.

  According to the first aspect of the present invention, the control means designates an index when a folder item acquisition request in which a scope other than a specific scope is specified is transmitted from the folder item acquisition request transmission means to the device, and the designation All items that serve as a guide for the total number of items held by the device based on whether or not the folder item acquisition response receiving means has received a folder item acquisition response including the item associated with the selected index. When the number information is acquired and the items to be displayed as a list are displayed as a list on the display means, information on the positions of the items to be displayed in the list with respect to the total number of items is also displayed on the display means.

  As a result, even when a folder item acquisition request specifying a scope other than a specific scope is sent to the device, information on the position of the item to be displayed in a list relative to the total number of items Can be notified to the user, and operability can be improved.

  According to the second aspect of the present invention, when the control unit displays a list of items to be displayed in a list on the display unit, all the items that can be displayed at one time among the items to be displayed in the list are displayed. Information on the position with respect to the number of items is also displayed on the display means. As a result, the items that can be displayed at one time among the items to be displayed in a list, that is, the position of the item being viewed by the user relative to the total number of items are notified to the user. can do.

  According to the invention described in claim 3, the control means is executing a specific process among the items to be displayed in a list when the display means displays the list of items to be displayed as a list. Information on the position of the item with respect to the total number of items is also displayed on the display means. As a result, among the items to be displayed in a list, an item that is executing a specific process, that is, if the specific process is a process for reproducing an item, which item the user is listening to is compared to the total number of items. It is possible to notify the user of information about the position of the degree.

  According to the fourth aspect of the present invention, the communication line connection means can connect a short-range wireless communication line with the device, and the folder item acquisition request transmission means includes both the communication line connection means and the device. The folder item acquisition request is transmitted to the device by short-range wireless communication while the short-range wireless communication line is connected between the communication line connection unit and the device. A folder item acquisition response is received from the device by short-range wireless communication while the short-range wireless communication line is connected. Thereby, the freedom degree of the arrangement | positioning aspect of an apparatus and a display control apparatus can be raised by transmitting / receiving a folder item acquisition request and a folder item acquisition response by near field communication between an apparatus and a display control apparatus.

Functional block diagram showing an embodiment of the present invention flowchart The figure which shows the transition of the screen displayed on a display part (the 1) The figure which shows the transition of the screen displayed on a display part (the 2) The figure which shows the transition of the screen displayed on a display part (the 3) The figure which shows the transition of the screen displayed on a display part (the 4) The figure which shows the transition of the screen displayed on a display part (the 5) The figure which shows the transition of the screen displayed on a display part (the 6)

  Hereinafter, an embodiment in which a display control device of the present invention is applied to a BT-compatible in-vehicle device having a Bluetooth (registered trademark) (hereinafter referred to as BT) communication function that can be mounted on a vehicle will be described with reference to the drawings. . Here, a case will be described in which a BT-compatible mobile phone having a BT communication function is brought into the vehicle interior of a vehicle in which the in-vehicle device is mounted, and the in-vehicle device and the mobile phone are in a state where BT communication is possible. .

  The in-vehicle system 1 includes an in-vehicle device 2 (display control device in the present invention) and a mobile phone 3 (device in the present invention). The in-vehicle device 2 includes a control unit 4 (control unit in the present invention), a BT communication unit 5 (folder item acquisition request transmission unit, folder item acquisition response reception unit, communication line connection unit in the present invention), and operation reception. A unit 6, a display unit 7 (display means in the present invention), a sound output unit 8, a storage unit 9, and a signal input unit 10 are provided.

  The control unit 4 includes a CPU, a RAM, a ROM, an I / O bus, and the like that are well-known microcomputers, and controls overall operations such as communication operations and data management operations of the in-vehicle device 2. The BT communication unit 5 has a function of performing BT communication with the mobile phone 3 and is connected to the mobile phone 3 with a BT communication line (short-range wireless communication line in the present invention). AVRCP (Audio / Video Remote Control Profile) version 1.4 (AVRCP1.4) for realizing remote control of audio / video established in the BT communication standard is connectable. The BT communication unit 5 designates one of a plurality of scopes in the connection state of AVRCP1.4, and transmits a folder item acquisition request to the mobile phone 3.

  In this case, there are four types of scopes that can be specified by the BT communication unit 5 in the folder item acquisition request: “media player list”, “virtual media file system”, “search”, and “now playing”. In addition to AVRCP1.4, the BT communication unit 5 has a hands-free profile (HFP) for realizing a hands-free call and a phone book access profile (PBAP) for realizing transfer of telephone directory data. ) Or the like may be connectable, and the plurality of profiles may or may not be simultaneously connected (so-called multi-connection). These profiles mean communication protocols defined for each function.

  The operation receiving unit 6 includes, for example, a mechanical hard switch or a touch button formed on a screen displayed by the display unit 7. When the user detects that the hard switch or the touch button is operated, An operation detection signal indicating the operated content is output to the control unit 4, and the control unit 4 analyzes the operation detection signal input from the operation reception unit 6. The display unit 7 is configured by, for example, a liquid crystal display. When a display command signal is input from the control unit 4, the display unit 7 displays a screen or forms a touch button on the screen based on the input display command signal. When the sound output command signal is input from the control unit 4, the sound output unit 8 outputs a sound based on the input sound output command signal. In the present embodiment, the configuration in which the display unit 7 and the sound output unit 8 are incorporated in the in-vehicle device 2 is described. However, the display device corresponding to the display unit 7 and the sound output corresponding to the sound output unit 8 are described. If the device is installed in the vehicle in advance, the display device or the sound output device is used to display a screen on the display device, form a touch button on the screen, or output a sound from the sound output device. There may be.

  The storage unit 9 is configured as a storage area capable of storing various data, for example, a storage area in which the in-vehicle device 2 stores a telephone number, a BT device address, and the like of the mobile phone 3 to which the BT communication line can be connected. . The signal input unit 10 inputs an accessory (ACC) signal from the key switch, and the control unit 4 turns on the vehicle-mounted device 2 when the ACC signal input from the key switch is on (high level). When the operating power from the on-vehicle battery is supplied to all functional blocks for normal operation (operating in the wake-up state), while the ACC signal input from the key switch is off (low level) The in-vehicle device 2 is operated in a power-off state, and the operation power from the in-vehicle battery is supplied to the limited functional block to operate with low power consumption (operate in the sleep state).

  The mobile phone 3 includes a control unit 11, a BT communication unit 12, a telephone communication unit 13, an operation receiving unit 14, a display unit 15, a transmitted voice input unit 16, a received voice output unit 17, and a storage unit. 18. The control unit 11 includes a CPU, a RAM, a ROM, an I / O bus, and the like that are well-known microcomputers, and controls overall operations such as communication operations and data management operations of the mobile phone 3.

  The BT communication unit 12 has a function of performing BT communication with the in-vehicle device 2, and is connected to the in-vehicle device 2 with a BT communication line, and is established by the BT communication standard. 4 is configured to be connectable. The BT communication unit 12 may also be configured to be able to connect HFP, PBAP, etc. in addition to AVRCP1.4 in the same manner as the BT communication unit 5 of the in-vehicle device 2 described above. Profiles can be connected simultaneously or not.

  The telephone communication unit 13 has a function of performing wide area wireless communication with a communication network. The operation receiving unit 14 is composed of a keyboard in which a plurality of keys such as a call key, a response key, a numeric key, and a multi key are arranged. When the operation is detected by the user, the user operates the key. An operation detection signal indicating the contents is output to the control unit 11, and the control unit 11 analyzes the operation detection signal input from the operation reception unit 14. The display unit 15 is composed of, for example, a liquid crystal display. When a display command signal is input from the control unit 11, the display unit 15 displays various screens such as a standby screen and an incoming call notification screen based on the input display command signal.

  The storage unit 18 includes a storage area that can store an index and an item in association with each other. An item is a track (music title). In the above-described mobile phone 3, when in a call state, the transmitted voice input to the transmitted voice input unit 16 is transmitted by the voice processing module of the control unit 11 and is transmitted from the telephone communication unit 13. The received voice transmitted to the communication network and received by the telephone communication unit 13 from the communication network is received by the voice processing module of the control unit 11 and output from the received voice output unit 17.

  Next, the operation of the above configuration will be described with reference to FIGS. FIG. 2 is a flowchart showing processing performed by the in-vehicle device 2. In the in-vehicle device 2, for example, when the control unit 4 determines that the ACC signal input from the key switch to the signal input unit 10 has been switched from off to on, the control unit 4 switches the device itself from the sleep state to the wake-up state to operate. Then, the BT communication line is connected between the BT communication unit 5 and the mobile phone 3, and the connection procedure of AVRCP1.4 is started. Note that the control unit 4 is not limited to starting the connection procedure of AVRCP1.4 triggered by the fact that the ACC signal is switched from OFF to ON in this way, but is triggered by the user's manual operation, for example, AVRCP1. 4 connection procedure may be started.

  When the control unit 4 completes the connection procedure of AVRCP1.4, during the connection of AVRCP1.4, the “virtual player list”, “virtual media file system”, “search”, and “nowplaying” of “virtual” When “media player list”, “search”, or “now playing” other than “media file system” (specific scope in the present invention) is designated as the scope of the folder item acquisition request, the processing shown in FIG. 2 is performed.

  The control unit 4 sets a value obtained by adding “1” to the number of items that can be displayed at one time by the display unit 7 as an index value (step S1), and starts a rough search process (step S2). In this case, the control unit 4 sets the index value in the range of “index value <4294967296 (2 to the 32nd power)” by expressing the index value in 4 octets.

  When the rough search process is started, the control unit 4 designates one of “media player list”, “search”, and “now playing” as the scope of the folder item acquisition request, and designates one of those items as the scope. The set index value is set to the start item and end item which are parameters of the acquisition request (step S3). Next, the control unit 4 causes the BT communication unit 5 to transmit the folder item acquisition request in which the index value is set (step S4), and receives the folder item acquisition response from the mobile phone 3 by the BT communication unit 5. (Step S5). When receiving the folder item acquisition request from the in-vehicle device 2, the mobile phone 3 determines whether or not the item associated with the index specified in the received folder item acquisition request is stored in the storage unit 18. If the item associated with the index specified in the received folder item acquisition request is stored in the storage unit 18, a folder item acquisition response including the item is transmitted to the in-vehicle device 2.

  When the control unit 4 determines that the folder item acquisition response is received from the mobile phone 3 by the BT communication unit 5 within a predetermined time after transmitting the folder item acquisition request, that is, the mobile phone 3 is associated with the index. If it is determined that the item is stored (“YES” in step S5), a value obtained by multiplying the index value at that time by “2” is set as a new index value (step S6), and the above-described step S2 Returning to (Step S7), the processes after Step S2 are repeated.

  On the other hand, if the control unit 4 determines that the folder item acquisition response has not been received by the BT communication unit 5 from the mobile phone 3 within a predetermined time after transmitting the folder item acquisition request, that is, the mobile phone 3 corresponds to the index. If it is determined that the attached item is not stored ("NO" in step S5), a value obtained by dividing the index value at that time by "2" is set as the top value, and the index value at that time Is set as the end value (step S8), and the dense search process is started (step S9).

  When the dense search process is started, the control unit 4 sets a value obtained by dividing the sum of the start value and the end value at that time by “2” as an index value (step S10), and sets the parameter of the folder item acquisition request. The set index value is set to a certain start item and end item (step S11). Next, the control unit 2 causes the BT communication unit 5 to transmit the folder item acquisition request in which the index value is set (step S12), and receives the folder item acquisition response from the mobile phone 3 by the BT communication unit 5. (Step S13). Also in this case, when the mobile phone 3 receives the folder item acquisition request from the in-vehicle device 2, whether or not the item associated with the index specified in the received folder item acquisition request is stored in the storage unit 18. If the item associated with the index specified in the received folder item acquisition request is stored in the storage unit 18, a folder item acquisition response including the item is sent to the in-vehicle device 2. Send.

  When the control unit 4 determines that the folder item acquisition response is received from the mobile phone 3 by the BT communication unit 5 within a predetermined time after transmitting the folder item acquisition request, that is, the mobile phone 3 is associated with the index. If it is determined that the item is stored (“YES” in step S13), the index value at that time is set as the top value (step S14), the process returns to step S9 described above (step S15), and after step S9. Repeat the above process.

  On the other hand, if the control unit 4 determines that the folder item acquisition response has not been received by the BT communication unit 5 from the mobile phone 3 within a predetermined time after transmitting the folder item acquisition request, that is, the mobile phone 3 corresponds to the index. If it is determined that the attached item is not stored ("NO" in step S13), the index value at that time is set as the end value (step S16), and the process returns to step S9 described above (step S15). The processing after step S9 is repeated. Note that the control unit 4 performs the process of determining the total number of items, although the process shown in FIG. 2 described above only determines the approximate value of the total number of items and does not determine the total number of items. You may do it.

  Through the processing described above, in the in-vehicle device 2, the cellular phone 3 holds the folder item acquisition response including the item associated with the designated index based on whether or not the folder item acquisition response is received from the cellular phone 3. It is possible to obtain information on the total number of items that is an indication of the total number of items, and when displaying the list of items to be displayed in a list, information on the position of the items to be displayed in the list relative to the total number of items is displayed. Can also be displayed.

  In the present embodiment, the in-vehicle device 2 performs the following operation. Here, a description will be given in comparison with the case where AVRCP 1.3 is connected. FIG. 3 shows screen transitions in AVRCP 1.3, and FIGS. 4 to 8 show screen transitions in AVRCP 1.4 in this embodiment.

  In AVRCP 1.3, when the control unit 4 determines that the “connect” button 51a is pressed while the portable device non-connection screen 51 (see FIG. 3A) is being displayed on the display unit 7, the control unit 4 connects to the portable device. When the middle screen 52 (see FIG. 3B) is displayed on the display unit 7 and AVSLC is completed, the main screen 53 (see FIG. 3C) is only displayed on the display unit 7. That is, the user cannot perform a browsing operation thereafter.

  On the other hand, in AVRCP 1.4, when the control unit 4 determines that the “connect” button 51a is pressed while the portable device non-connection screen 51 (see FIG. 4A) is displayed on the display unit 7, A device connection in-progress screen 52 (see FIG. 4B) is displayed on the display unit 7, and a media player is selected and activated, whereby a player activation screen 54 (see FIG. 4C) is displayed on the display unit 7. Display. When the AVSLC is completed, the control unit 4 causes the display unit 7 to display a main screen 55 (see FIG. 5A) that is different from the main screen 53 in AVRCP1.3. Unlike the main screen 53 in AVRCP 1.3, the main screen 55 in AVRCP 1.4 is provided with a “play list” button 55a and a “library” button 55b. Thereafter, the user can select a “play list” button 55a. Further, by pressing the “library” button 55b, added value can be obtained.

  That is, when the control unit 4 determines that the “play list” button 55 a is pressed while the main screen 55 is displayed on the display unit 7, the control unit 4 displays the browse screen (play list) 56 on the display unit 7. The skip button 56a, the down skip button 56b, the up scroll button 56c, and the down scroll button 56d are formed and displayed so that the user can easily switch the track (music title) that is the item to be displayed in the list. And display a list of tracks. Here, in this embodiment, since the above-described processing is performed, the information on the total number of tracks, which is a guideline for the total number of tracks, is acquired, the information on the position of the track displayed in the list with respect to the total number of tracks is displayed in a bar. It is displayed by 56e.

  More specifically, for example, the control unit 4 has “Track 1” as the first track, and tracks displayed in a list (viewable at a time by the user) from “Track 1” to “Track 17”. If the total number of items (total number of tracks) is “24 tracks”, the display area corresponding to “6/24” is highlighted from the front end (upper end) of the entire display area of the bar 56e. Let In this case, the control unit 4 reversely displays the display area of “track 1” when “track 1” of “track 1” to “track 17”, which is a track displayed as a list, is being played back (see FIG. 5 (b)).

  Further, for example, when the track displayed in the list is switched from “Track 4” to “6 Track” of “Track 21”, the control unit 4 only “2/24” from the front end in the entire display area of the bar 56e. The display area corresponding to “6/24” is displayed in reverse. Also in this case, the control unit 4 highlights the display area of “track 4” when “track 4” is being reproduced from “track 4” to “track 21” which are tracks displayed in the list ( (Refer FIG.5 (c)).

  That is, if the track displayed in the list is the head of the total number of tracks, the control unit 4 reversely displays the display area on the head side in the entire display area of the bar 56e, while displaying the list. If the track is the end of the total number of tracks, the display area on the end side in the entire display area of the bar 56e is highlighted. Thereby, the user can easily recognize the position of the track displayed in the list with respect to the total number of tracks. Note that the control unit 4 may display the total number of items (total number of tracks) determined on the browse screen 56 as shown in FIG.

  In addition, not only informing the user of the position of the track displayed in the list with respect to the total number of tracks, but during reproduction (specific processing in the present invention is being executed). The user may be notified of the position of the track with respect to the total number of tracks. That is, as shown in FIGS. 7 and 8, the control unit 4 displays information related to the position of the track displayed in the list with respect to the total number of tracks by the bar 56e and also relates to the position of the track being reproduced with respect to the total number of tracks. Information is displayed by the bar 56f.

  Specifically, for example, if the track being reproduced is “track 1”, the control unit 4 changes the display area corresponding to “1/24” from the front end (upper end) in the entire display area of the bar 56f. If the track being reproduced is “track 4”, the display area corresponding to “1/24” is displayed in reverse, away from the tip of the entire display area of the bar 56f by “2/24”. As a result, the user can easily recognize the position of the track displayed in the list with respect to the total number of tracks, and the position of the track being reproduced with respect to the total number of tracks. Can also be easily recognized.

  As described above, according to the present embodiment, the in-vehicle device 2 designates an index when transmitting a folder item acquisition request in which a scope other than a specific scope is designated to the mobile phone 3, and the designated index. Based on whether or not a folder item acquisition response including an item associated with is received from the mobile phone 3, the mobile phone 3 acquires the total item number information that is a measure of the total number of items held by the mobile phone 3. When displaying the list of items to be displayed as a list, it is also configured to display information on the position of the items to be displayed in the list with respect to the total number of items, so specify a scope other than a specific scope. Even when sending a folder item acquisition request to the device, Items can notify the whether the degree of positional information to the user relative to the total number of items, it is possible to improve the operability.

The present invention is not limited to the embodiment described above, and can be modified or expanded as follows.
The display control device may be an in-vehicle hands-free device having a hands-free function, an in-vehicle navigation device having a navigation function, or an in-vehicle navigation device with a hands-free function having both the hands-free function and the navigation function. In addition to the in-vehicle devices mounted on these vehicles, for example, an information processing device installed indoors may be used. Further, the device may be a portable information terminal, and is not limited to these portable devices, and may be, for example, an information processing apparatus installed indoors. That is, not only the in-vehicle device and the mobile phone but also information processing devices installed indoors may be used.

  Folder item acquisition is not limited to a configuration in which a folder item acquisition request or a folder item acquisition response is transmitted / received via a BT communication line by connecting a BT communication line between the in-vehicle device and the mobile phone. The configuration may be such that the request and the folder item acquisition response are transmitted and received through a wired communication line.

  There are a bar for notifying the position of the track displayed in the list with respect to the total number of tracks and a bar for notifying the position of the track being played with respect to the total number of tracks. Not only the configuration provided separately, but also the mark for notifying the position of the track displayed in the list with respect to the total number of tracks by distinguishing the shape and color of the mark, and during playback The mark may be provided on the same bar for notifying the position of the number of tracks relative to the total number of tracks.

  In the drawings, 2 is an in-vehicle device (display control device), 3 is a mobile phone (device), 4 is a control unit (control unit), 5 is a BT communication unit (folder item acquisition request transmission unit, folder item acquisition response reception unit, Communication line connection means).

Claims (4)

A folder item acquisition request transmitting means for transmitting a folder item acquisition request specifying any one of a plurality of scopes to a device that associates an index with an item; and
A folder item acquisition response receiving means for receiving a folder item acquisition response including an item from the device;
A display control device comprising: a control unit capable of displaying a list of items included in the folder item acquisition response received from the device by the folder item acquisition response receiving unit;
The control means specifies an index when a folder item acquisition request in which a scope other than a specific scope is specified is transmitted from the folder item acquisition request transmission means to the device, and an item associated with the specified index Based on whether or not the folder item acquisition response receiving means receives a folder item acquisition response from the device, it acquires information on the total number of items that is a measure of the total number of items held by the device, and displays the list. When the display unit displays a list of items to be displayed on the display unit, the display unit also displays information on the position of the item to be displayed on the list with respect to the total number of items on the display unit. . The display control apparatus according to claim 1,
When the control unit displays a list of items to be displayed in a list on the display unit, the control unit also includes information on the position of all items that can be displayed at once among the items to be displayed in the list. Display on the display means. The display control apparatus according to claim 1,
When the control unit displays a list of items to be displayed in the list on the display unit, information on the position of the item that is the target to be displayed in the list with respect to the total number of items that are executing a specific process Is also displayed on the display means. The display control device according to any one of claims 1 to 3,
Provided with a communication line connection means capable of connecting a short-range wireless communication line with a device,
The folder item acquisition request transmission means transmits the folder item acquisition request to the device by short-range wireless communication in a state where the communication line connection means and the device are connected to each other through a short-range wireless communication line,
The folder item acquisition response receiving unit receives the folder item acquisition response from the device by short-range wireless communication in a state where the communication line connection unit and the device are connected to each other by a short-range wireless communication line. A display control device.

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