JP2005292672A - Character string processing system, character string receiver, character string transmitter, character string processing method, transmitter side character string processing method, receiver side character string processing method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform proper displaying while a decrease of an information amount is suppressed even when a character string receiver 12 receives a character string exceeding the maximum number of display characters of a display 13. <P>SOLUTION: In a character string transmitter 11, a character string generation means 16 generates a character string to transmit. When the maximum number of display characters of the display 13 is set M, a display character selecting information generation means 17 generates display character selecting information as the information which M-pieces of characters among the characters of the character string to select and display. A transmitter means 18 transmits the character string and the display character selecting information relating to the character string. In a character string receiver 12, a receiving means 22 receives the character string and the display character selecting information relating to the character string. A character selecting means 23 selects M-pieces of characters from among the characters included in the received character string based on the display character selecting information. A display control means 24 makes the display 13 display the selected characters thereon. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a character string processing system, a character string receiving device, a character string transmitting device, a character string processing method, a transmitting side character string processing method, and a receiving side character capable of appropriately displaying a character string on a display device with a limited number of display characters. The present invention relates to a column processing method and a program.

  In an AV system installed in an automobile, a head unit and an amplifier are connected to each other via a cable so that data can be transmitted and received. The amplifier transmits a character string such as a song name and an artist name of a song being played back to the head unit. The head unit displays the received character string on its display. In general, the display device has a limited number of display characters. In the conventional receiving device, when the number of characters in the received character string exceeds the maximum character number L of the display device, only the characters from the first character to the Lth character in the character string are displayed. Is displayed on the display, and the display of the (L + 1) th and subsequent characters is omitted.

In Patent Document 1, when displaying the names of a plurality of devices connected to the information processing apparatus via a network on the screen of the information processing apparatus, a number of character strings as device names are limited. When such characters must be thinned out, a technique for dealing with the fact that the character strings after thinning are the same between different devices and cannot be identified by the user is disclosed. Specifically, in the information processing apparatus of Patent Document 1, the character string portion to be thinned out from the original character string is the same character string portion in the device name, and the character strings as the device names are different from each other. Only the characters are left and can be distinguished from each other on the screen.
JP 2003-122469 A

  For example, when displaying the song name, artist name, and other information about the song being played on the display unit, due to restrictions on the number of characters displayed on the display unit, L If you select and display individual characters, the display will be only the song name, and the artist name and other information will not be presented to the user, so the amount of information that can be presented to the user will be significantly reduced. To do. Although the thinning method of Patent Document 1 can be greatly used to avoid mutual identification difficulties when displaying a plurality of device names at the same time, it suppresses a reduction in the amount of information for a predetermined long character string. However, it cannot be applied at all to thinning out characters from the character string when displayed within the limited number.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a character string processing system and a character string receiving device capable of selecting an appropriate character from a character string having a large number of characters and presenting effective information to a user with respect to the limitation on the number of characters displayed on the display device. A character string transmitting device, a character string processing method, a transmission side character string processing method, a reception side character string processing method, and a program.

  The character string processing system of the present invention includes a character string transmitting device that transmits a character string, and a character string receiving device that is equipped with a display, receives the character string, and displays the character string on the display. . The character string transmitting device is a character string generating means for generating a character string to be transmitted. When the maximum number of display characters of the display is M, a character string transmitting device selects and displays which M characters from the characters of the character string. Display character selection information generating means for generating display character selection information as information on the character, and transmission means for transmitting the character string and the display character selection information related to the character string. A character string receiving device includes a receiving unit that receives a character string and display character selection information related to the character string, and a character that selects M characters from characters included in the received character string based on the display character selection information. It has a selection control means and a display control means for displaying the selected character on the display.

  Another character string processing system of the present invention includes a character string transmitting device that transmits a character string, and a character string receiving device that is equipped with a display, receives the character string, and displays the character string on the display. Yes. The character string transmitting device includes a character string generating unit that generates a character string to be transmitted, a receiving unit that receives a set number N from the character string receiving device, and a character of a character string when the maximum number of display characters of the display is the set number N Display character selection information generating means for generating display character selection information as information indicating which N characters should be selected and displayed, and a character string and display character selection information relating to the character string are transmitted It has a transmission means. The character string receiving device includes a transmitting unit that transmits the maximum number of display characters of the display unit as a set number N, a receiving unit that receives a character string and display character selection information related to the character string, and a character string included in the received character string. Character selection means for selecting N characters based on display character selection information, and display control means for displaying the selected characters on the display.

  The character string processing method of the present invention includes a transmission side character string processing method for transmitting a character string and a reception side character string processing method for receiving a character string and displaying the character string on a display. The transmission side character string processing method includes: a character string generation step for generating a character string to be transmitted; if the maximum number of display characters on the display device at the character string transmission destination is a set number M, any M characters in the character string A display character selection information generating step for generating display character selection information as information on whether to select and display the character, and a transmission step for transmitting the character string and the display character selection information related to the character string Yes. The receiving side character string processing method includes a receiving step of receiving a character string and display character selection information related to the character string, and selecting M characters based on display character selection information from characters included in the received character string And a display control step for displaying the selected character on the display.

  Another character string processing system according to the present invention includes a transmission-side character string processing method for transmitting a character string, and a reception-side character string processing method for receiving a character string that is equipped with a display and displaying the character string on the display. And have. The transmission side character string processing method includes a reception step for receiving a set number N from a character string transmission destination, a character string generation step for generating a character string to be transmitted, and a maximum number of display characters on the display at the character string transmission destination. A display character selection information generating step for generating display character selection information as information indicating which N characters should be selected and displayed from among the characters of the character string, and the character string and the character string A transmission step of transmitting the display character selection information. The receiving side character string processing method includes a transmission step of transmitting the maximum number of display characters of the display unit as a set number N, a reception step of receiving a character string and display character selection information related to the character string, and the received character string. A character selection step for selecting N characters from display character selection information based on display character selection information, and a display control step for displaying the selected characters on a display.

  The program of the present invention causes a computer to function as each means of the character string transmitting device of the present invention or the character string receiving device of the present invention.

  According to the present invention, the character string receiving side receives display character selection information related to the character string together with the character string. The display character selection information indicates whether a character string is to be displayed properly on a display device with a limited number of display characters. Because it is information, the character string receiver side selects appropriate characters from the character string based on the display character selection information, and displays the selected character on the display unit. Can be presented to the user.

  FIG. 1 is a functional block diagram of the character string processing system 10. The character string processing system 10 includes a character string transmitting device 11 that transmits a character string, and a character string receiving device 12 that is equipped with a display device 13 and that receives the character string and displays the character string on the display device 13. ing. The character string transmitting device 11 and the character string receiving device 12 are both (a) an in-vehicle AV device, (b) both a home AV device, (c) both an information home appliance, (d) The character string transmitting device 11 is a server, and the character string receiving device 12 is a PDA, a mobile phone, or an information home appliance. In the case of (a) to (c), the character string transmitting device 11 and the character string receiving device 12 are connected to each other by a cable or short-range wireless. In the case of (d), the character string transmitting device 11 and the character string receiving device 12 are connected to each other via the Internet. In the case of (a), the character string transmitting device 11 and the character string receiving device 12 are, for example, an amplifier and a head unit, respectively.

  In the character string transmitting device 11, the character string generating unit 16 generates a character string to be transmitted. The display character selection information generating means 17 selects display characters as information indicating which M characters should be selected and displayed from the characters in the character string when the maximum number of display characters on the display 13 is the set number M. Generate information. The transmission means 18 transmits a character string and display character selection information related to the character string. In the character string receiving device 12, the receiving means 22 receives a character string and display character selection information related to the character string. The character selection means 23 selects M characters based on the display character selection information from the characters included in the received character string. The display control means 24 causes the display 13 to display the selected character.

  When transmitting the character string and the display character selection information, the transmission unit 18 does not need to specify the destination. When the character string transmitting device 11 and the character string receiving device 12 are connected to a network such as a LAN or the Internet, the character string transmitting device 11 and the character string receiving device 12 may correspond to 1: multiple. In some cases, the character string transmission device 11 sends the character string and display character selection information to the network in a broadcast format.

  The character string receiving device 12 acquires display character selection information related to the character string together with the character string. When the character string is to be displayed on the display device 13 having a limit on the number of display characters, the display character selection information indicates which character should be selected and displayed from the character string. Therefore, the character string receiving device 12 selects a character from the character string based on the display character selection information, and displays the selected character on the display unit 13, so that the user can display the character on the display unit 13. Appropriate information can be received despite thinning.

  Preferably, the display character selection information is displayed by setting number as information indicating which M characters should be selected and displayed from among the characters of the character string for each of a plurality of different setting numbers M. This is character selection information. In this case, the character selection unit 23 of the character string receiving device 12 receives the received character string based on the display character selection information by setting number related to the setting number M that matches the maximum number of display characters of the display 13 of the character string receiving device 12. M characters are selected from the characters included in. As a specific example, in the conventional display device, only the title of the music title at the beginning of the character string is displayed due to the limitation on the number of characters to be displayed. On the display device 13, the title of each of the song title, artist name, and genre is displayed. To L1, L2 and L3 (L1 = L2 = L3) characters may be displayed.

  2A and 2B are specific examples of the character string 29 and the display character selection information 31, respectively. In this example, the character string 29 is composed of 16 characters. When the character string transmission device 11 and the character string reception device 12 are an amplifier and a head unit, respectively, the character string 29 is, for example, text such as a song name, an artist name, or a genre of a song being reproduced. The display character selection information 31 further includes a plurality (four in the example) of display character selection information 32a, 32b, 32c, 32d for each set number. The display character selection information by setting number 32a, 32b, 32c, and 32d is display character selection information by setting number when M = 4, 6, 8, and 16, respectively. Specific examples of the display character selection information 32a, 32b, 32c, and 32d for each set number are displayed in a 16-bit binary number as shown in FIG. Each bit of the set number display character selection information corresponds to the order of each character in the character string 29. In the display character selection information 32a, 32b, 32c, and 32d for each set number, “1” is a flag indicating “selection” and “0” is a flag indicating omission (decimation).

  FIG. 3 is an explanatory diagram showing which characters are selected from the character string 29 for the display character selection information 32a, 32b, 32c, and 32d for each set number in FIG. 2B. 3A to 3D correspond to the display character selection information 32a, 32b, 32c, and 32d according to the set number, respectively. It means that the characters in the hatched cells are selected, and the characters in the unhatched cells are omitted (thinned out). For example, the binary number of the display character selection information 32b for each set number is the first to fourth bits, the eighth and ninth bits are “1”, and the others are “0”. When the maximum number of display characters of the display unit 13 is 6, the character selection means 23 extracts the display character selection information 32b for each set number from the display character selection information 31, and based on the display character selection information 32b for each set number, the character string From 29, the first to fourth, eighth and ninth characters “A”, “I”, “U”, “E”, “A” and “B” are selected. In this way, “Aiue AB” is displayed on the display 13.

  The character selection means 23 selects a display character selection information according to the set number selected from among a plurality of display character selection information 32a, 32b, 32c, 32d according to the set number, and the one corresponding to the maximum display character number of the display unit 13. A character is selected from the character string 29 based on the above. If there is display character selection information for each set number of M that matches the maximum number of display characters of the display unit 13, the display character selection information for each set number is selected, but it matches the maximum number of display characters of the display unit 13. When there is no display character selection information for each set number of M, typically, the display character selection information for each set number related to the maximum set number is selected from the set numbers less than the maximum display character number of the display unit 13. Is done. For example, when the maximum number of display characters on the display 13 is 10, display character selection information for each set number of M = 8 is selected. However, the display character selection information for each set number related to the minimum M may be selected from among the Ms larger than the maximum display character number of the display unit 13. That is, when the maximum number of display characters on the display 13 is 5, display character selection information for each set number of M = 6 is selected. Despite the maximum number of display characters being 5, M = 6 is selected, and 6 characters are selected from the character string 29. However, in the normal character string receiving device 12, (maximum) The number of display characters + 1) and subsequent characters are not displayed on the display 13 even if they are selected characters.

  FIG. 4 shows another specific example of display character selection information. The display character selection information 34 is divided by 2 bits, and the order from the top of each section matches the order of characters in the character string 29 associated with each section. That is, in the display character selection information 34, the 1st, 2nd,... 2 bit sections are assigned to the 1st, 2nd,. It is the corresponding display character selection information. Two bits in the display character selection information 34 indicate a rank on selection. The rank is 4 ranks “00”, “01”, “10” and “11” in order from the top. Each rank corresponds to the maximum number of display characters 4, 6, 8, and 16. Characters with higher ranks are displayed preferentially (without being thinned out) even when the maximum number of display characters is small. That is, when M = 4, the characters “A”, “I”, “U”, “E,” whose display character selection information classification by setting number is “00” or less are selected. When M = 6, the characters “A”, “I”, “U”, “E”, “A”, and “B” whose display character selection information classification by setting number is “01” or less are selected. When M = 8, the characters “A”, “I”, “U”, “A”, “B”, “A”, “A”, “B”, “C” and “D” are selected. When M = 16, all characters are selected from the character string 29 in which the display character selection information classification for each set number is “11” or less. In the case of the display character selection information 34, the total number of bits can be reduced as compared with the case of the display character selection information 31.

  FIG. 5 is a functional block diagram of another character string processing system 40. In the character string processing system 40, the same blocks as those of the character string processing system 10 are denoted by the same reference numerals as the blocks of the character string processing system 10. The character string processing system 40 includes a character string transmitting device 41 that transmits a character string, and a character string receiving device 42 that is equipped with the display device 13, receives the character string, and displays the character string on the display device 13. ing. The character string transmitting device 41 is provided with a receiving means 45 in addition to the character string transmitting device 11 of FIG. The receiving unit 45 receives the set number N from the character string receiving device 42. The character string generation unit 16 generates a character string to be transmitted. The display character selection information generating means 47 selects the display character as information indicating which N characters should be selected and displayed from the characters in the character string when the maximum number of display characters of the display 13 is the set number N. Generate information. The transmission means 18 transmits a character string and display character selection information related to the character string. The character string receiving device 42 has a transmission means 49 added to the character string receiving device 12 of FIG. The transmission means 49 transmits the maximum number of display characters on the display unit 13 as the set number N. The receiving means 22 receives a character string and display character selection information related to the character string. The character selection means 23 selects N characters from the characters included in the received character string based on the display character selection information. The display control means 24 causes the display 13 to display the selected character.

  When transmitting the set number N, the character string receiving device 42 does not have to designate the destination as the specific character string transmitting device 41. When the character string transmission device 41 and the character string reception device 42 are connected to a network such as a LAN or the Internet, the character string transmission device 41 and the character string reception device 42 may correspond to a plurality of ones. In some cases, the character string receiving device 42 sends the set number N to the network in a broadcast format.

  For example, when the character string transmitting device 41 determines that the character string transmitting device 41 transmits a character string to the character string receiving device 42, for example, the character string transmitting device 41 sets the character string receiving device 41 each time N is transmitted. A request may be issued to send the set number N to itself, and the character string receiving device 42 may be configured to receive and transmit the request. When there are many partners to which the character string transmitting device 41 transmits character strings, the character string transmitting device 41 and the character string receiving device 42 are connected to each other via the Internet or a wireless line. The format of the request from the character string transmitting device 41 and the response from the character string receiving device 42 is advantageous. Alternatively, when the character string transmitting device 41 and the character string receiving device 42 are connected via a LAN or a cable and the number of character string receiving devices 42 is limited, the character string receiving device 42 is activated. Only once, or when it is detected that a new device has been additionally connected to the network, the set number N may be transmitted to the network.

  FIG. 6 is a flowchart of the character string processing method 55. The character string processing method 55 includes a transmission-side character string processing method 56 that transmits a character string, and a reception-side character string processing method 57 that receives the character string and displays the character string on the display unit 13. . In the transmission side character string processing method 56, in S61, a character string to be transmitted is generated. In S62, when the maximum number of display characters of the display device 13 at the character string transmission destination is the set number M, display character selection as information indicating which M characters should be selected and displayed from the characters of the character string Generate information. In S63, the character string and display character selection information related to the character string are transmitted. In the receiving side character string processing method 57, in S68, the character string and display character selection information related to the character string are received. In S69, M characters are selected from the characters included in the received character string based on the display character selection information. In S70, the selected character is displayed on the display 13.

  Preferably, the display character selection information is displayed by setting number as information indicating which M characters should be selected and displayed from among the characters of the character string for each of a plurality of different setting numbers M. This is character selection information. In this case, in S69, M characters are selected from the characters included in the received character string based on the display character selection information classified by the set number corresponding to the set number M that matches the maximum display character number of the display unit 13.

  FIG. 7 is a flowchart of the character string processing method 75. The character string processing method 75 includes a transmission-side character string processing method 76 that transmits a character string, and a reception-side character string processing method 77 that is equipped with the display device 13, receives the character string, and displays the character string on the display device 13. And have. Steps having the same contents as those of the character string processing method 55 in FIG. In the transmission side character string processing method 76, S78 is added to the transmission side character string processing method 56 of the character string processing method 55. In S78, the set number N is received from the transmission destination of the character string. In S61, a character string to be transmitted is generated. In S79, when the maximum number of display characters of the display device 13 at the character string transmission destination is the set number N, display character selection as information indicating which N characters should be selected and displayed from the characters of the character string Generate information. In S63, the character string and display character selection information related to the character string are transmitted. In the receiving side character string processing method 77, S83 is added to the receiving side character string processing method 57 of the character string processing method 55. In S83, the maximum number of characters displayed on the display 13 is transmitted as the set number N. In S68, the character string and display character selection information related to the character string are received. In S69, N characters are selected from the characters included in the received character string based on the display character selection information. In S70, the selected character is displayed on the display 13.

  The present invention is also realized as a computer program installed in each of the character string transmitting devices 11 and 41 and the character string receiving devices 12 and 42. These computer programs cause the computer to function as each means of the devices in the character string transmitting devices 11 and 41 and the character string receiving devices 12 and 42 as mounting destinations.

It is a functional block diagram of a character string processing system. It is a figure which shows the specific example of a character string and display character selection information. It is explanatory drawing which shows which character is selected from a character string with respect to each display character selection information according to each setting number of FIG. It is a figure which shows another specific example of display character selection information. It is a functional block diagram of another character string processing system. It is a flowchart of a character string processing method. It is a flowchart of another character string processing method.

Explanation of symbols

10: Character string processing system, 11: Character string transmission device, 12: Character string reception device, 13: Display, 16: Character string generation means, 17: Display character selection information generation means, 18: Transmission means, 22: Reception Means: 23: character selection means, 24: display control means, 29: character string, 31: display character selection information, 32a, 32b, 32c, 33d: display character selection information for each set number, 34: display character selection information, 40 : Character string processing system, 41: character string transmitting device, 42: character string receiving device, 45: receiving means, 47: display character selection information generating means, 49: transmitting means.

Claims (13)

In a character string processing system having a character string transmitting device that transmits a character string, and a character string receiving device that is equipped with a display and receives the character string and displays the character string on the display,
The character string transmitting device is:
Character string generation means for generating a character string to be transmitted;
Display character selection information generating means for generating display character selection information as information indicating which M characters should be selected from the characters of the character string when the maximum number of display characters of the display is the set number M Transmitting means for transmitting a character string and display character selection information related to the character string;
Have
The character string receiving device is:
Receiving means for receiving a character string and display character selection information related to the character string;
A character selection means for selecting M characters from the characters included in the received character string based on the display character selection information, and a display control means for displaying the selected characters on the display;
The character string processing system characterized by having. In a character string processing system having a character string transmitting device that transmits a character string, and a character string receiving device that is equipped with a display and receives the character string and displays the character string on the display,
The character string transmitting device is:
Character string generation means for generating a character string to be transmitted;
Receiving means for receiving a set number N from the character string receiving device;
Display character selection information generating means for generating display character selection information as information indicating which N characters should be selected from the characters in the character string when the maximum number of display characters of the display is N Transmitting means for transmitting a character string and display character selection information related to the character string;
Have
The character string receiving device is:
A transmission means for transmitting the maximum number of display characters of the display unit as a set number N;
Receiving means for receiving a character string and display character selection information related to the character string;
Character selection means for selecting N characters from the characters included in the received character string based on the display character selection information, and display control means for displaying the selected characters on the display;
The character string processing system characterized by having. The display character selection information is display character selection information for each set number as information indicating which M characters should be selected and displayed from among the characters of the character string for each of a plurality of different set numbers M. And
The character selection means of the character string receiving device includes a character included in the received character string on the basis of display character selection information by number of settings according to a setting number M that matches the maximum number of display characters of the display of the character string reception device. The character string processing system according to claim 1 or 2, wherein M characters are selected from the list. Character string generation means for generating a character string to be transmitted;
Display character as information indicating which M characters should be selected and displayed from the characters of the character string when the maximum number of display characters of the display in the character string receiving device of the character string transmission destination is the set number M Display character selection information generating means for generating selection information, and transmission means for transmitting a character string and display character selection information relating to the character string;
A character string transmission device characterized by comprising: Character string generation means for generating a character string to be transmitted;
Receiving means for receiving the set number N from the character string receiving device of the character string transmission destination;
When the maximum number of display characters of the display in the character string receiving device is the set number N, display character selection information is generated as information indicating which N characters should be selected and displayed from the characters of the character string. Display character selection information generating means, and transmission means for transmitting a character string and display character selection information related to the character string,
A character string transmission device characterized by comprising: In a character string receiving device equipped with a display and receiving a character string and displaying the character string on the display,
Receiving means for receiving a character string and display character selection information related to the character string;
A character selection means for selecting M characters from the characters included in the received character string based on the display character selection information, and a display control means for displaying the selected characters on the display;
A character string receiving device characterized by comprising: The display character selection information is display character selection information for each set number as information indicating which M characters should be selected and displayed from among the characters of the character string for each of a plurality of different set numbers M. And
The character selection means is configured to select M characters out of the characters included in the received character string based on the display character selection information according to the setting number according to the setting number M corresponding to the maximum display character number of the display of the character string receiving device. The character string receiving device according to claim 6, wherein a character is selected. In a character string receiving device equipped with a display and receiving a character string and displaying the character string on the display,
Transmitting means for transmitting the maximum number of display characters of the display as a set number N;
Receiving means for receiving a character string and display character selection information related to the character string;
Character selection means for selecting N characters from the characters included in the received character string based on the display character selection information, and display control means for displaying the selected characters on the display;
A character string receiving device characterized by comprising: In a character string processing method having a transmission character string processing method for transmitting a character string and a reception character string processing method for receiving the character string and displaying the character string on a display device,
The transmission side character string processing method is:
A string generation step for generating a string to be transmitted,
When the maximum number of display characters of the display device at the character string transmission destination is the set number M, display character selection information is generated as information indicating which M characters should be selected and displayed from the characters of the character string. A display character selection information generation step, and a transmission step of transmitting a character string and display character selection information related to the character string;
Have
The receiving side character string processing method is:
A receiving step for receiving a character string and display character selection information related to the character string;
A character selection step of selecting M characters based on the display character selection information from characters included in the received character string, and a display control step of displaying the selected characters on the display;
A character string processing method characterized by comprising: A character string processing method comprising: a transmission-side character string processing method for transmitting a character string; and a reception-side character string processing method for receiving a character string and displaying the character string on the display device. In
The transmission side character string processing method is:
A receiving step for receiving a set number N from the destination of the character string;
A string generation step for generating a string to be transmitted,
When the maximum number of display characters of the display device at the character string transmission destination is the set number N, display character selection information is generated as information indicating which N characters should be selected and displayed from the characters of the character string. A display character selection information generation step, and a transmission step of transmitting a character string and display character selection information related to the character string;
Have
The receiving side character string processing method is:
A transmission step of transmitting the maximum number of display characters of the display unit as a set number N;
A reception step of receiving a character string and display character selection information related to the character string; and a character selection step of selecting N characters from the characters included in the received character string based on the display character selection information;
A display control step for displaying the selected character on the display;
A character string processing method characterized by comprising: The display character selection information is display character selection information for each set number as information indicating which M characters should be selected and displayed from among the characters of the character string for each of a plurality of different set numbers M. And
The character selection step of the receiving-side character string processing method includes: M from among the characters included in the received character string, based on display character selection information for each set number related to the set number M that matches the maximum display character number of the display. The character string processing method according to claim 9 or 10, wherein one character is selected.   The program for functioning a computer as each means of the character string transmission apparatus of Claim 4 or 5.   The program for functioning a computer as each means of the character string receiving apparatus in any one of Claims 6-8.

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