JP2007033872A - Transmission/reception system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transmission/reception system capable of imparting information to be scroll-displayed to a user in more easily viewable way speedily. <P>SOLUTION: A transmitter 11a generates data sequences representing a plurality of objects to be displayed by scrolling based on data representing a plurality of objects to be displayed by scrolling in a receiver 12a and transmits the data sequences to the receiver 12a. The receiver 12a displays the objects represented by the received data sequences by scrolling. When predetermined state change of the receiver 12a is detected, the transmitter 11a further stops generation of the data sequences in the previous time, remakes the data sequences indicating the plurality of objects to be scroll-displayed and retransmits the remade data sequences. The receiver 12a scroll-displays the display objects according to the retransmitted data sequences. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a transmission / reception system, comprising a transmission device and a reception device, wherein the transmission device transmits a data sequence representing a plurality of objects to be scroll-displayed to the reception device, and the reception device is an object represented by the reception data sequence. It is related with the transmission / reception system which scrolls and displays.

  Digitized video data or audio data (hereinafter referred to as content data) may include bibliographic information about video or audio in its own or in metadata related to itself. In addition, bibliographic information on content may be stored in a TOC (Table Of Contents) on a recording medium.

  For example, in the case of content data compressed in accordance with MP3 (Mpeg Audio Layer III), an area called ID3 tag is provided in a part of its own data area, and the ID3 tag typically includes bibliographic information. , Album name, title name and artist name can be stored. Many AV devices have a function of displaying the bibliographic information during the reproduction of content, and there are cases where the display of bibliographic information is obligated by a standard. For example, in portable audio equipment represented by a portable CD player or a semiconductor audio player, the bibliographic information is transmitted from the main body side to the remote controller side, and a small display device (for example, a liquid crystal display device) provided on the remote controller side is provided. ) Displays the bibliographic information. However, the display device on the remote controller side may display not only bibliographic information but also information held locally by the remote controller. Therefore, when switching from bibliographic information to displaying local information or vice versa, There has been a problem that the display of information or bibliographic information is disturbed.

The display disturbance as described above is not limited to an application that displays bibliographic information, but may occur when switching from one video to another. Therefore, conventionally, when switching video, there is a method to continue displaying one frame of video immediately before switching as a still image until the video after switching can be correctly displayed (until video synchronization is established). Proposed. According to this method, when synchronization is established, it is possible to switch to a later video, so that the display disturbance on the screen as described above can be suppressed and the quality can be improved (for example, see Patent Document 1). ).
JP-A-8-181926

  However, the display device provided in the remote controller of the portable audio device described above generally has only a small screen, and the amount of information (typically the number of characters) that can be displayed on the screen is limited. Therefore, in order to display bibliographic information having a large amount of information, the bibliographic information is often scrolled. In addition, a certain amount of time is required from the start to the end of scrolling of the bibliographic information so that the user can visually recognize the image, and the time from the start to the end of the scrolling is the video synchronization in the method disclosed in Patent Document 1 above. Much longer than the time until it is established. Therefore, there are not a few situations in which other information must be displayed between the start and completion of scrolling. However, in such a situation, on the display screen on the remote controller, the information before switching and the information after switching may be mixed up, and information that the user cannot understand may be displayed on the display screen. There was a problem.

  Moreover, when the method disclosed in Patent Document 1 is adopted in the above-described portable acoustic device, the following problems may occur. That is, it is assumed that other information is interrupted and displayed while the first bibliographic information is being scrolled. Under this assumption, when returning to bibliographic information display from other information, the remote controller is in a completely passive position when viewed from the portable audio device, so while displaying other information, Partial information is missing from the first scroll of bibliographic information, and the user may not be able to understand the bibliographic information.

  Further, since the remote controller is in a passive position, the bibliographic information resumed from the middle is scrolled to the end of the bibliographic information. Therefore, in order to understand the bibliographic information, the user needs to watch the second scroll of the bibliographic information, but as described above, it takes time from the start to the end of the bibliographic information scroll. The user must wait a considerable amount of time until the start of the second scroll.

  Therefore, an object of the present invention is to provide a transmission / reception system capable of providing information to be scrolled and displayed to a user more easily in a shorter time.

  In order to achieve the above object, the present invention is directed to a transmission / reception system including a transmission device and a reception device. Here, the transmission device transmits a data sequence representing a plurality of objects to be scroll-displayed to the reception device. Further, the receiving device scrolls and displays the object represented by the received data sequence. The transmitting device includes a display data storage unit that stores data representing a plurality of objects to be scroll-displayed in the receiving device, and data representing a plurality of objects to be scroll-displayed based on the data stored in the display data storage unit And a data sequence generation unit that generates a sequence and transmits the sequence to the receiving device. The receiving device includes a display unit that receives the data sequence generated by the data sequence generation unit and scrolls and displays a target represented by the received data sequence. The transmission device further includes a detection unit that gives a reset request to the data sequence generation unit when a predetermined state change of the reception device is detected. In the transmission device, the data sequence generation unit stops generating the previous data sequence in response to the reset request from the detection unit, recreates and retransmits a data sequence representing a plurality of objects to be scrolled, and receives In the apparatus, the display unit scrolls and displays the display target according to the data sequence retransmitted by the data sequence generation unit.

  According to the above aspect, the display signal generation unit stops generating the data sequence that causes display disturbance on the display unit in response to the trigger signal from the detection unit. Thereafter, the display signal generation unit recreates the data sequence and transmits the data sequence to the reception device, and the display unit on the reception device side scrolls and displays a plurality of objects according to the recreated data sequence. Therefore, the user need not watch the display disorder. Further, the generation of a data sequence that causes display disturbance on the display unit is stopped, and after reset, scrolling is performed again from the beginning. As a result, the user can view information to be scroll-displayed in a correct state in a short time.

(First embodiment)
FIG. 1 is a block diagram showing the overall configuration of a transmission / reception system 1a according to the first embodiment of the present invention. In FIG. 1, the transmission / reception system 1a includes a transmission device 11a and a reception device 12a.

  The transmission device 11a is a portable device represented by, for example, a CD player, an MD player, or a semiconductor audio player, and includes a content storage unit 111, a content acquisition unit 112, a content reproduction unit 113, and a bibliographic information acquisition unit 114. A bibliographic information storage unit 115, a data sequence generation unit 116, and a state detection unit 117. In the present embodiment, for example, the content acquisition unit 112, the content reproduction unit 113, the bibliographic information acquisition unit 114, the bibliographic information storage unit 115, and the data sequence generation unit 116 are included in the transmission device 11a. This is realized by a microcomputer that executes a computer program stored in advance.

  Of the configurations realized in the microcomputer, a part of the configuration such as the content reproduction unit 113 may be realized by an LSI different from the microcomputer. In addition, the content reproduction unit 113 may be realized by a hardware decoder. Furthermore, the content acquisition unit 112 may be realized by an optical pickup, a traverse motor, and a servo LSI.

  The content storage unit 111 is a portable recording medium that is detachable from the transmission device 11a such as an optical disk or a memory card. Alternatively, the content storage unit 111 may be a non-portable recording medium such as a semiconductor memory or a hard disk built in the transmission device 11a. The content storage unit 111 stores digitized video data or audio data (hereinafter referred to as content data). In the present embodiment, it is assumed that the content data is compressed in accordance with MP3 (Mpeg Audio Layer III). Under this assumption, in the content data, a character string (code string) such as an album name, a title name, and an artist name is stored in the ID3 tag as the bibliographic information of the content.

  The content acquisition unit 112 acquires content data to be reproduced this time from the content storage unit 111. The content reproduction unit 113 decodes the content data acquired by the content acquisition unit 112 and outputs a reproduction signal (for example, an analog signal representing the content) obtained as a result to a speaker (not shown).

  The bibliographic information acquisition unit 114 reads the bibliographic information of the content data to be reproduced this time and temporarily stores it in the bibliographic information storage unit 115.

  The data sequence generation unit 116 generates a data sequence including at least a plurality of character strings (an example of a display target) included in the bibliographic information stored in the bibliographic information storage unit 115, and transmits the data sequence to the reception device 12a. Here, the character string included in the data sequence is subject to scroll display in the receiving device 12a. Further, the data sequence includes a control command for such scroll display as necessary.

  When the state detection unit 117 detects a state change on the receiving device 12a side, the state detection unit 117 gives a reset request to the data sequence generation unit 116 to indicate that the data sequence is to be recreated. In the present embodiment, the state change on the receiving device 12a side is detected by a start request described later.

  Next, the receiving device 12a will be described. The receiving device 12a is a remote controller used together with a portable device represented by a CD player, an MD player, or a semiconductor audio player, for example, and includes a drive unit 121, a display unit 122, a key receiving unit 123, and a request generation. Part 124.

  The drive unit 121 receives the data sequence from the data sequence generation unit 116, generates a drive signal for display according to the received data sequence, and passes it to the display unit 122.

  In accordance with the drive signal from the drive unit 121, the display unit 122 scrolls and displays a character string to be displayed in the present embodiment.

  The key receiving unit 123 receives a user input from a key (not shown) provided in the receiving device 12a. Here, as an example of a key, a function for a start request is assigned, or another function is assigned.

  When receiving an input to the key receiving unit 123, the request generating unit 124 generates the above-described start request and transmits it to the state detecting unit 117 on the transmission device 11a side. Here, the start request is a signal for requesting the data sequence generation unit 116 to interrupt the creation of the current data sequence, recreate the same data sequence, and request transmission to the receiving device 12a.

  Hereinafter, an operation example of the transmission / reception system 1a having the above-described configuration will be described with reference to the sequence charts of FIG. 2 and FIG. FIG. 2 is a sequence chart of basic data communication of the transmission / reception system 1a. FIG. 3 is a characteristic data communication sequence chart in the transmission / reception system 1a.

  First, normal data communication of the transmission / reception system 1a will be described with reference to FIG. Hereinafter, for the sake of convenience, the display unit 122 will be described as having a display area for a total of six characters.

  First, in the transmission device 11a, the data sequence generation unit 116 creates data including a code of 6 characters (for example, “ABCDEF” as shown in FIG. 2) to be displayed first from the bibliographic information storage unit 115, It transmits to the drive part 121 of the receiver 12a (sequence SQ11). As a result, the first six characters (“ABCDEF”) are displayed on the display unit 122 of the receiving device 12a.

  When a predetermined time (time when it is assumed that the displayed character can be recognized by the user) has elapsed since the generation of the first data, the data sequence generation unit 116 reads from the bibliographic information storage unit 115 one character (to be displayed next) For example, as shown in FIG. 2, data including “G”) and a command for scrolling is created and transmitted to the drive unit 121 of the receiving device 12a (sequence SQ12). As a result, six characters (“BCDEFG”) scrolled by one character are displayed on the display unit 122 of the receiving device 12a.

  When a predetermined time elapses from the previous data generation, the data sequence generation unit 116 reads from the bibliographic information storage unit 115 one character to be displayed next (for example, “H” as shown in FIG. 2), and scrolls. The data including the command for generating is generated and transmitted to the drive unit 121 of the reception device 12a (sequence SQ13). As a result, 6 characters (“CDEFGH”) scrolled by one character compared to the previous time are displayed on the display unit 122 of the receiving device 12a.

  Here, when the request generation unit 124 does not transmit the start request to the transmission device 11a when the reception device 12a becomes unable to receive the data sequence from the transmission device 11a for some reason, the data sequence generation unit 116 After a predetermined time has elapsed since the previous data generation, the data including one character to be displayed next (for example, “I” as shown in FIG. 2) and a command is generated and transmitted to the receiving device 12a. An attempt is made (sequence SQ14). However, the receiving device 12a cannot receive the current data.

  Further, the data sequence generator 116 creates data including one character to be displayed next (for example, “J” as shown in FIG. 2) and a command, and tries to transmit the data to the receiving device 12a. (Sequence SQ15). However, the receiving device 12a cannot receive the current data.

  Thereafter, assuming that the receiving device 12a can receive the data sequence from the transmitting device 11a, the data sequence generating unit 116 continues to display one character (for example, the next character to be displayed) after a predetermined time has elapsed since the previous data generation. As shown in FIG. 2, data including “K”) and a command is generated and transmitted to the receiving device 12a (sequence SQ16). As a result, the display unit 122 of the receiving device 12a displays 6 characters ("DEFGHK") that are scrolled by one character compared to the previously displayed character string. However, the receiving device 12a cannot receive the current data.

  As described above, according to the sequence of the current data sent from the transmission device 11a, the reception device 12a originally has “ABCDEF” → “BCDEFG” → “CDEFGH” → “DEFGHHI” → “EFGHHIJ” → “FGHIJK”. Should be scrolled. However, as described above, since the receiving device 12a cannot receive two sets of data including “I” and “J”, the receiving device 12a actually receives “ABCDEF” → “BCDEFFG” → “CDEFGH” → An inaccurate character string “DEFFGHK” including a discontinuous portion between “H” and “K” is scroll-displayed. In addition, when the user wants to see the scroll display of “ABCDEF” → “BCDEFG” → “CDEFGH” → “DEFGHHI” → “EFGHHIJ” → “FGHIJK”, the user again waits until the processing is sequentially performed from the sequence SQ11. There must be.

  Next, characteristic data communication of the transmission / reception system 1a will be described with reference to FIG. The sequence chart of FIG. 3 differs from that of FIG. 2 in that it includes sequence sequences SQ21 to SQ22 instead of the sequence SQ16. Other than that, there is no difference between the two sequence charts. Therefore, in FIG. 3, components corresponding to the sequence of FIG.

  After the sequence SQ13, when the reception device 12a is released from a state where it cannot receive the data sequence from the transmission device 11a for some reason, the request generation unit 124 responds to the key input on the reception device 12a side. Transmits a start request to the transmission device 11a (sequence SQ21), the state detection unit 117 on the transmission device 11a side gives a reset request to the data sequence generation unit 116.

  In response to the reset request, the data sequence generation unit 116 creates data including a code of 6 characters (“ABCDEF” in the lower stage shown in FIG. 3) to be displayed first from the bibliographic information storage unit 115, It transmits to the drive part 121 of 12a (sequence SQ22). As a result, the first six characters (“ABCDEF”) are displayed on the display unit 122 of the receiving device 12a. Thereafter, processing similar to that after sequence SQ12 as described with reference to FIG. 2 is performed.

  As described above, according to the present embodiment, after the reception device 12a side is released from the state in which the data sequence cannot be received, the transmission device 11a starts the request for re-scrolling from the reception device 12a side. In response to, the transmission of the data sequence is restarted from the beginning. As a result, when an incorrect scroll occurs on the receiving device 12a side, the transmitting device 11a stops the subsequent data communication, and performs the data communication again in order to restart the scroll from the beginning. This eliminates the need for the user to view the inaccurate scroll display to the end, and can reduce the time to wait until the start of the second scroll.

  In the above embodiment, the transmission device 11a and the reception device 12a may be connected by wire or may be connected wirelessly.

  In the above embodiment, the content data is compressed by MP3 and the bibliographic information is included in the ID3 tag. However, the present invention is not limited to this, and the bibliographic information is stored in the content data itself or in itself. It only has to be included in related metadata. In addition, the bibliographic information may be stored in a TOC (Table Of Contents) on the recording medium.

  In the above embodiment, the bibliographic information as the scroll display target has been described as a character string such as an album name, a title name, and an artist name. It does n’t matter.

  In the above embodiment, the reproduction signal from the content reproduction unit 113 may be output from an earphone (inside phone) integrated with a remote controller as an example of the reception device 12a.

(Modification)
FIG. 4 is a block diagram showing an overall configuration of a modification of the transmission / reception system 1a (hereinafter referred to as transmission / reception system 1b). In FIG. 4, the transmission / reception system 1b includes a transmission device 11b and a reception device 12b.

  The transmission device 11b is different from the transmission device 11a described above in that it includes a state detection unit 131 instead of the state detection unit 117. Since there is no difference between the two transmitters 11a and 11b other than that, in FIG. 4, the same reference numerals are assigned to components corresponding to the configuration of FIG.

  Next, the receiving device 12b will be described. The receiving device 12b is different from the receiving device 12a described above in that the key receiving unit 123 and the request generation unit 124 are not provided. Since there is no difference between the receiving apparatuses 12a and 12b other than that, in FIG. 4, the same reference numerals are assigned to the components corresponding to the configuration of FIG.

  Next, characteristic data communication of the transmission / reception system 1b will be described with reference to FIG. The sequence chart of FIG. 5 differs from that of FIG. 3 in that the trigger of the sequence SQ22 is not a start request sent in the sequence SQ21. Since there is no difference between the two sequence charts other than that, in FIG. 5, the same reference numerals are given to the components corresponding to the sequence of FIG. 3, and their explanations are omitted.

  When the transmission device 11b and the reception device 12b are detachably connected via a wired communication path, the state detection unit 131 connects the reception device 12a to the transmission device 11b via the wired communication path as a state change on the reception device 12a side. Detecting that it has been removed (inserted). When detecting such a state change, the state detection unit 131 gives a reset request similar to the above to the data sequence generation unit 116.

  Also according to the above modification, it is possible to obtain the same technical effect as that of the first embodiment.

  In the above modification, the receiving device 12b has been described as being connected to the transmitting device 11b via a wired communication path. However, the present invention is not limited to this, and the transmission device 11b and the reception device 12b may be configured to be communicable via a wireless link. In this case, the state detection unit 131 gives a reset request to the data sequence generation unit 116 when the wireless link is established.

(Second Embodiment)
FIG. 6 is a block diagram showing an overall configuration of a transmission / reception system 1c according to the second embodiment of the present invention. In FIG. 6, the transmission / reception system 1 c includes a plurality of transmission apparatuses 11 c (two transmission apparatuses 11 c ′ and 11 c ″ in the drawing) and a reception apparatus 12 c.

  Since each transmission device 11c has the same configuration as the above-described transmission device 11a, description thereof is omitted.

  In order to correctly scroll and display the data sequences from the plurality of transmission devices 11c, the reception device 12c is compared with the reception device 12a described above, instead of the key reception unit 123 and the request generation unit 124, A request generation unit 142 and a data sequence selection unit 143 are provided.

  The key receiving unit 141 receives a user input from a key (not shown) provided in the receiving device 12c. Here, as an example of a key, a function for designating one of the plurality of transmission apparatuses 11c is assigned.

  The request generation unit 142 specifies the transmission device 11c selected this time from the input to the key reception unit 141, generates a start request for each transmission device 11c, and transmits the request to the state detection unit 117 included therein. In addition, the request generation unit 142 designates the currently selected transmission device 11c to the data sequence selection unit 143.

  In response to the designation of the request generation unit 142, the data sequence selection unit 143 selects a data sequence from the transmission device 11c that should be scroll-displayed this time, and provides the data sequence to the drive unit 121.

  Hereinafter, an operation example of the transmission / reception system 1c having the above-described configuration will be described with reference to the sequence charts of FIGS. FIG. 7 is a basic data communication sequence chart of the transmission / reception system 1c. FIG. 8 is a sequence chart of characteristic data communication in the transmission / reception system 1c.

  First, normal data communication of the transmission / reception system 1c will be described with reference to FIG. Hereinafter, for the sake of convenience, the display unit 122 will be described as having a display area for a total of six characters. In the following description, it is assumed that the data sequence of the transmission device 11c 'is scroll-displayed first, and the user eventually switches to the scroll display of the data sequence of the transmission device 11c "by a key operation.

First, as described in the first embodiment, the transmission device 11c ′ creates data including codes for the first six characters (for example, “ABCDEF” as shown in FIG. 7), and receives the reception device 12c. (Sequence SQ31). For simplification of explanation, at almost the same timing, the transmitting device 11c ”creates data including codes for the first six characters (for example,“ Ai Ueoka ”as shown in FIG. 7), and sends the data to the receiving device 12c. Transmit (sequence SQ32).
As described above, since the transmission device 11c ′ is currently selected, six characters (“ABCDEF”) from the transmission device 11c ′ are displayed on the reception device 12c.

  After the elapse of a predetermined time from the previous data generation, each of the transmission devices 11c ′ and 11c ″ creates data including the next one character and a scroll command, and transmits the data to the reception device 12c (sequences SQ33 and SQ34). Here, the data from the transmitting device 11c ′ includes a “G” code, and the data from the transmitting device 11c includes a “ki” code. If the user has not yet performed a key operation, the character string “BCDEFG” is displayed on the receiving device 12c according to the data from the transmitting device 11c ′.

  When a predetermined time further elapses, transmitting devices 11c ′ and 11c ″ further create data including the next one character and a scroll command, and transmit the data to receiving device 12c (sequences SQ35 and SQ36). Thus, a code “H” is transmitted from the transmission device 11c ′, and a code “ku” is transmitted from the transmission device 11c. If the key has not been operated yet, the character string “CDEFGH” is displayed on the receiving device 12c according to the data from the transmitting device 11c ′.

  Here, when the user performs a key operation to designate the transmission device 11c ″, the request generation unit 142 designates the currently selected transmission device 11c ″ to the data sequence selection unit 143. In response to this, the data sequence selection unit 143 selects the data sequence from the transmission device 11 c ″ to be scroll-displayed this time, and gives it to the drive unit 121.

  From the above, when a predetermined time elapses from the previous data generation, each of the transmission devices 11c ′ and 11c ″ further creates data including the next one character and a scroll command and transmits it to the reception device 12c. (Sequences SQ37 and SQ38) In the receiving device 12c, scroll display is performed according to the data from the transmitting device 11c ″. Here, when the code “I” is transmitted from the transmission device 11c ′ and the code “ke” is transmitted from the transmission device 11c, the character string “DEFGH K” is displayed on the reception device 12c. Such a display result includes a discontinuous portion between “H” and “ke”.

  Next, characteristic data communication of the transmission / reception system 1c will be described with reference to FIG. The sequence chart of FIG. 8 differs from that of FIG. 2 in that it includes sequence sequences SQ41 to SQ42 instead of the sequence SQ38. Other than that, there is no difference between the two sequence charts. Therefore, in FIG. 8, components corresponding to the sequence of FIG. 7 are denoted by the same reference numerals, and description thereof is omitted.

  After the sequences SQ35 and SQ36, when the user performs a key operation to designate the transmission device 11c ″, the request generation unit 142 transmits a start request to the transmission device 11c ″ (sequence SQ41), and the currently selected transmission The device 11c ″ is designated to the data sequence selection unit 143. In response to this, the data sequence selection unit 143 selects the data sequence from the transmission device 11c ″ to be scroll-displayed this time and supplies it to the drive unit 121. become. In the transmission device 11c ″, the state detection unit 117 gives a reset request to the data sequence generation unit 116 in the same manner as in the first embodiment.

  In response to the reset request, the transmitting device 11c "creates data including a code of 6 characters (lower" Aiueoka "shown in FIG. 8) to be displayed first, and transmits the data to the receiving device 12c (sequence SQ42). As a result, the first six characters ("Ai Ueoka") transmitted from the transmission device 11c "are displayed on the reception device 12c. Thereafter, processing similar to the sequence SQ34 → SQ36 → SQ38 described with reference to FIG. 7 is performed.

  As described above, according to the present embodiment, the key reception unit 141, the request generation unit 142, and the data sequence selection unit 143 are provided on the reception device 12c side, thereby being connected to the plurality of transmission devices 11c. Even in this case, in response to the start request for redoing the scroll from the receiving device 12a side, the designated transmitting device 11c restarts the data sequence transmission from the beginning.

  In the above embodiment, the case where the number of transmission apparatuses 11c is two has been described. However, the number of transmission apparatuses 11c may be three or more.

  Further, in the above embodiment, the key reception unit 141, the request generation unit 142, and the data sequence selection unit 143 are provided in the reception device 12c, and the key operation is described as a processing trigger. However, it is not essential to the present embodiment that the key operation is a trigger for the process, but this is not the only case, and the wired communication path is inserted into the transmission device 11c, as in the above-described modified example. The target transmission device 11c may restart the transmission of the data sequence from the beginning based on disconnection or disconnection of a wireless link being established. In addition, the target transmission device 11c may re-transmit the data sequence from the beginning based on the internal state of the device or the change in the internal state of the reception device 12c.

(Third embodiment)
FIG. 9 is a block diagram showing an overall configuration of a transmission / reception system 1d according to the third embodiment of the present invention. In FIG. 9, the transmission / reception system 1d includes a transmission device 11d and a reception device 12d.

  The transmission device 11d has a configuration similar to that of the transmission device 11a described above. Therefore, in the following description, in the transmission device 11d, components corresponding to the configuration of the transmission device 11a are denoted by the same reference numerals.

  The receiving device 12d includes a key reception unit 151, a request generation unit 152, a local information storage unit 153, a local information acquisition unit 154, and a data selection unit 155, as compared with the above-described receiving device 12c.

  The key receiving unit 151 receives a user input from a key (not shown) provided in the receiving device 12d. Here, as an example of the key, a predetermined function is assigned. In addition, in relation to this function, local information described later is displayed on the receiving device 12d.

  When a predetermined condition described later is satisfied, the request generation unit 152 generates a reset request for the transmission device 11d (hereinafter referred to as a scroll reset request) and transmits the request to the state detection unit 117 included therein. On the other hand, when there is an input to the key reception unit 151, the request generation unit 152 generates a request for starting display of local information (hereinafter referred to as a local display request) and transmits the request to the local information acquisition unit 154. To do. Further, the request generation unit 152 specifies either the transmission device 11d or the local information acquisition unit 154 according to the currently selected item.

  Similar to the content storage unit 111, the local information storage unit 153 may be a portable recording medium or a non-portable recording medium. Such local information storage unit 153 stores local information held in the receiving device 12d. When the receiving device 12d is, for example, a remote controller, the local information typically includes a character string (code string) “HOLD”.

  The local information acquisition unit 154 acquires the local information to be displayed this time from the local information storage unit 154 and passes it to the data selection unit 155.

  When the transmission device 11d or the local information acquisition unit 154 is designated by the request generation unit 152, the data selection unit 155 selects the data sequence from the transmission device 11d or the local information from the local information acquisition unit 154, and the drive unit 121 is given.

  Hereinafter, an operation example of the transmission / reception system 1d configured as described above will be described with reference to FIG. Hereinafter, for the sake of convenience, the display unit 122 will be described as having a display area for a total of six characters.

  First, the transmission device 11d performs the same processing as the sequences SQ11 to SQ13 in the first embodiment. As a result, the character string “ABCDEF” → “BCDEFG” → “CDEFGH” is scroll-displayed on the receiving device 12d as illustrated in FIG.

  When the user performs a key operation that requires display of local information during the scroll display as described above, the request generation unit 152 transmits a local display request to the local information acquisition unit 154 (sequence SQ51). The local information acquisition unit 154 is designated to the data selection unit 155. In response to this, the data selection unit 155 selects the local information to be displayed this time and gives it to the drive unit 121.

  In response to the local display request, the local information acquisition unit 154 creates data including a code of a character string representing the local information to be displayed (the lower “HOLD” shown in FIG. 10), and sends it to the data selection unit 155. Transmit (sequence SQ52). As a result, a character string representing local information is displayed on the receiving device 12d.

  Further, during the display of the local information, the transmitting device 11d sequentially transmits data including the character code to be scrolled and the scrolling command to the receiving device 12d (in FIG. 10, "I" Only the transmission data including the character code is shown). However, during the display of the local information, the data from the transmission device 11d is not selected by the data selection unit 155, so the transmission data becomes invalid.

  After the elapse of a predetermined time from the start of displaying local information (an example of the above-described predetermined condition), request generation unit 152 transmits a scroll start request to transmission device 11d (sequence SQ53), and transmits transmission device 11d to data selection unit 155. Specify for. In response to this, the data selection unit 155 selects the data sequence this time and gives it to the drive unit 121.

  Further, in response to the scroll start request, the transmission device 11d creates data including a code of 6 characters (lower “ABCDEF” shown in FIG. 10) to be displayed first, and transmits the data to the reception device 12d (sequence). SQ54). As a result, the first six characters (“ABCDEF”) transmitted from the transmission device 11d are displayed on the reception device 12d. Thereafter, processing similar to the sequence SQ12 → SQ13 described with reference to FIG. 3 is performed.

  As described above, according to the present embodiment, even when the local information display is interrupted during the scroll display of the data sequence from the transmission device 11d, the reception is performed when the local information display is completed. From the device 12d, a scroll start request for re-scrolling is transmitted. In response to such a scroll start request, the transmission device 11d restarts the transmission of the data sequence from the beginning. As a result, the user does not need to watch the inaccurate scroll display due to the interrupt display of the local information until the end, and the time to wait until the start of the second scroll can be reduced.

  In the above embodiment, the predetermined condition in the sequence SQ53 is exemplified as the elapse of a predetermined time from the start of local information display. However, the present invention is not limited to this, and the predetermined condition is present after the end of displaying local information. It may be after the user's key input.

  In the above embodiment, the key receiving unit 151, the request generation unit 152, and the data selection unit 155 are described as being provided in the receiving device 12d. However, the present invention is not limited to this, After detecting the disconnection of the wired communication path or the disconnection of the wireless link, the transmission device 11d may restart the data sequence transmission from the beginning.

(Fourth embodiment)
FIG. 11 is a block diagram showing an overall configuration of a transmission / reception system 1e according to the fourth embodiment of the present invention. In FIG. 11, the transmission / reception system 1e includes a transmission device 11e, a reception device 12e, and another transmission device 13.

  The transmission device 11e has the same configuration as the transmission device 11a described above. Therefore, in the following description, in the transmission device 11e, components corresponding to the configuration of the transmission device 11a are denoted by the same reference numerals.

  Compared with the above-described receiving device 12d, the receiving device 12e replaces the key receiving unit 151, the request generation unit 152, the local information storage unit 153, the local information acquisition unit 154, and the data selection unit 155 with a key receiving unit 161, a request A generation unit 162, an external information storage unit 163, an external information acquisition unit 164, and a data selection unit 165 are provided.

  The key receiving unit 161 receives a user input from a key (not shown) provided in the receiving device 12e. Here, as an example of the key, a predetermined function is assigned. Further, in relation to this function, external information described later is displayed on the receiving device 12e.

  When a predetermined condition described later is satisfied, the request generation unit 162 generates a start request for the transmission device 11e (hereinafter referred to as a scroll start request) and transmits it to the state detection unit 117 included therein. On the other hand, when there is an input to the key reception unit 161 or a command from the transmission device 13, the request generation unit 162 generates a request for starting display of external information (hereinafter referred to as an external display request), The information is transmitted to the external information acquisition unit 164. In addition, the request generation unit 162 specifies either the transmission device 11e or the external information acquisition unit 164 according to the currently selected item.

  As with the content storage unit 111, the external information storage unit 163 may be a portable recording medium or a non-portable recording medium. The external information storage unit 163 stores external information sent from another transmission device 13.

  The external information acquisition unit 164 acquires external information to be displayed from the external information storage unit 164 and passes it to the data selection unit 165.

  When the transmission device 11e or another transmission device 13 is designated by the request generation unit 162, the data selection unit 165 selects a data sequence from the transmission device 11e or external information from the external information acquisition unit 164, and a drive unit 121 is given.

  Another transmitter 13 stores external information that can be displayed on the receiver 12e. When the transmitting device 13 is, for example, a mobile phone, the external information illustratively includes at least a character string (code string) representing a telephone number.

  Hereinafter, an operation example of the transmission / reception system 1e configured as described above will be described with reference to FIG. Hereinafter, for the sake of convenience, the display unit 122 will be described as having a display area for a total of six characters.

  First, the transmission device 11e performs the same processing as the sequences SQ11 to SQ13 in the first embodiment. As a result, the character string “ABCDEF” → “BCDEFG” → “CDEFGH” is scroll-displayed on the receiving device 12e as illustrated in FIG.

  When the user performs a key operation that requires display of external information or when a predetermined command arrives at the reception device 12e from the transmission device 13 during the scroll display as described above, the request generation unit 162 The external display request is transmitted to the external information acquisition unit 164 (sequence SQ61), and the external information acquisition unit 164 is designated to the data selection unit 165. In response to this, the data selection unit 165 selects the external information to be displayed this time and gives it to the drive unit 121.

  For example, the external display request is also sent to the transmission device 13. In response to the external display request, the transmission device 13 stores the external information in the external information storage unit 163. In response to the external display request, the external information acquisition unit 164 creates data including a code of a character string ("06-123" shown in FIG. 12) representing external information (for example, a telephone number) to be displayed, The data is transmitted to data selection unit 165 (sequence SQ62). As a result, a character string representing external information is displayed on the receiving device 12e.

  In addition, during the display of the external information, the transmission device 11e sequentially transmits data including a character code to be scrolled and a scroll command to the reception device 12e ("I" in FIG. 12). Only the transmission data including the character code is shown). However, since the data from the transmission device 11e is not selected by the data selection unit 165 during the display of the external information, the transmission data becomes invalid.

  After the elapse of a predetermined time from the start of display of external information (an example of the predetermined condition described above), request generation unit 162 transmits a scroll start request to transmission device 11e (sequence SQ63), and transmits transmission device 11e to data selection unit 165. Specify for. In response to this, the data selection unit 165 selects the data sequence this time and gives it to the drive unit 121.

  In response to the scroll start request, the transmission device 11e creates data including a code of 6 characters (lower “ABCDEF” shown in FIG. 12) to be displayed first, and transmits the data to the reception device 12e (sequence). SQ64). As a result, the first six characters (“ABCDEF”) transmitted from the transmission device 11e are displayed on the reception device 12e. Thereafter, processing similar to the sequence SQ12 → SQ13 described with reference to FIG. 3 is performed.

  As described above, according to the present embodiment, even when the external information display is interrupted during the scroll display of the data sequence from the transmission device 11e, the reception is performed when the external information display ends. From the device 12e, a scroll start request for re-scrolling is transmitted. In response to such a scroll start request, the transmission device 11e restarts the transmission of the data sequence from the beginning. This eliminates the need for the user to watch the inaccurate scroll display resulting from the interrupt display of the external information until the end, thereby reducing the time to wait until the start of the second scroll.

  Note that the predetermined condition in the sequence SQ63 may be after the display of the external information is completed, or after the user's key input, as in the third embodiment.

  Similarly to the above-described modification, after detecting the disconnection of the wired communication path or the disconnection of the wireless link, the transmission device 11e may restart the data sequence transmission from the beginning.

  Further, a transmission / reception system combining the third and fourth embodiments may be used.

  The transmission / reception system according to the present invention makes it easier for a user to view information to be scroll-displayed in a shorter time, and is a set of a remote controller and a portable device typified by a CD player, an MD player, or a semiconductor audio player. Useful.

The block diagram which shows the whole structure of the transmission / reception system 1a which concerns on the 1st Embodiment of this invention. Sequence chart showing an example of normal data communication in the transmission / reception system 1a shown in FIG. Sequence chart showing an example of characteristic data communication in the transmission / reception system 1a shown in FIG. The block diagram which shows the whole structure of the modification (transmission / reception system 1b) of the transmission / reception system 1a shown in FIG. Sequence chart showing an example of characteristic data communication in the transmission / reception system 1b shown in FIG. The block diagram which shows the whole structure of the transmission / reception system 1c which concerns on the 2nd Embodiment of this invention. Sequence chart showing an example of normal data communication in the transmission / reception system 1c shown in FIG. Sequence chart showing an example of characteristic data communication in the transmission / reception system 1c shown in FIG. The block diagram which shows the whole structure of the transmission / reception system 1d which concerns on the 3rd Embodiment of this invention. Sequence chart showing an example of data communication in the transmission / reception system 1d shown in FIG. The block diagram which shows the whole structure of the transmission / reception system 1e which concerns on the 4th Embodiment of this invention. 11 is a sequence chart showing an example of data communication in the transmission / reception system 1e shown in FIG.

Explanation of symbols

1a, 1b, 1c, 1d, 1e Transmission / reception system 11a, 11b, 11c, 11d, 11e Transmission device 111 Content storage unit 112 Content acquisition unit 113 Content playback unit 114 Bibliographic information acquisition unit 115 Bibliographic information storage unit 116 Data sequence generation unit 117 , 131 State detection unit 12a, 12b, 12c, 12d, 12e Receiver 121 Drive unit 122 Display unit 123, 141, 151, 161 Key reception unit 124, 142, 152, 162 Request generation unit 143 Data sequence selection unit 153 Local information Storage unit 154 Local information acquisition unit 155, 165 Data selection unit 163 External information storage unit 164 External information acquisition unit

Claims (7)

At least one transmission device and a reception device are provided. The transmission device transmits a data sequence representing a plurality of objects to be scroll-displayed to the reception device, and the reception device scrolls the objects represented by the reception data sequence. A transmission / reception system for displaying,
The transmitter is
A display data storage unit for storing data representing a plurality of objects to be scroll-displayed in the receiving device;
Based on the data stored in the display data storage unit, a data sequence representing a plurality of objects to be scroll-displayed, and a data sequence generation unit for transmitting to the receiving device,
The receiving device includes a display unit that receives the data sequence generated by the data sequence generation unit and scrolls and displays a target represented by the received data sequence,
The transmitting device further includes:
When detecting a predetermined state change of the receiving device, comprising a detection unit that gives a reset request to the data sequence generation unit,
In the transmission device, the data sequence generation unit stops generating the previous data sequence in response to a reset request from the detection unit, regenerates a data sequence representing a plurality of objects to be scrolled, and retransmits the data sequence And
In the receiving apparatus, the display unit scrolls and displays a display target according to the data sequence retransmitted by the data sequence generation unit. The receiving device further includes a request generating unit that generates a start request in response to a predetermined trigger and gives the request to the detecting unit on the transmitting device side,
The transmission / reception system according to claim 1, wherein the detection unit gives a reset request to the data sequence generation unit in response to a start request given by the request generation unit on the receiving device side. The receiving device is configured to be detachable with respect to the transmitting device,
The transmission / reception system according to claim 1, wherein when the detection unit detects that the reception device is inserted into the transmission device, the detection unit gives a reset request to the data sequence generation unit. The transmission / reception system includes a plurality of transmission devices that transmit a data sequence representing a plurality of objects, each of which is to be scroll-displayed, to the reception device,
The receiving device further includes a data sequence selecting unit that selects a data sequence from any one of the plurality of transmitting devices,
The transmission / reception system according to claim 1, wherein the display unit scrolls a display target according to the data sequence selected by the data sequence selection unit. The receiving device is:
An information acquisition unit that acquires at least one of local information held locally and external information sent from an external device;
A request generation unit that requests display on the display unit for either the transmission device or the information acquisition unit;
A data selection unit that selects one of the transmission device and the information storage unit in response to a request from the request generation unit;
The display unit
When the request generation unit makes a request to the information acquisition unit, it displays at least one of local information and external information acquired by the information acquisition unit and selected by the data selection unit,
When at least one of the local information and the external information is displayed, if the request generation unit makes a request to the transmission device, it is retransmitted from the transmission device and selected by the data selection unit. The transmission / reception system according to claim 1, wherein the display target is scroll-displayed according to the data sequence. A transmission device that generates and transmits a data sequence representing a plurality of objects to be scrolled in a reception device, wherein the transmission device includes:
A display data storage unit for storing data representing a plurality of objects to be scroll-displayed in the receiving device;
A data sequence generating unit that generates a data sequence representing a plurality of objects to be scrolled based on the data stored in the display data storage unit, and transmits the data sequence to the receiving device;
When detecting a predetermined state change of the receiving device, comprising a detection unit that gives a reset request to the data sequence generation unit,
In response to the reset request from the detection unit, the data sequence generation unit stops generating the previous data sequence, recreates and retransmits a data sequence representing a plurality of objects to be scroll-displayed. A receiving device that receives a data sequence that is generated by a transmitting device and represents a plurality of objects to be scroll-displayed, and that scroll-displays an object represented by a received data sequence, the receiving device comprising:
A display unit that receives a data sequence generated by the transmission device and scrolls and displays a target represented by the received data sequence;
In response to a predetermined trigger, a request generation unit that generates a start request for requesting re-generation of the data sequence and transmits the request to the transmission device, and
In response to the start request from the request generator, the transmitter stops generating the previous data sequence, recreates a data sequence representing a plurality of objects to be scrolled, and retransmits the data sequence to the receiver. ,
The display device is a receiving device that scrolls and displays a display target according to a data sequence retransmitted by the transmitting device.

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