JP5024013B2 - Display device, information recording / reproducing device, display method and program - Google Patents

Description

  The present invention relates to a display device, an information recording / reproducing device, a display method, and a program.

  2. Description of the Related Art Conventionally, many information recording / reproducing apparatuses for recording / reproducing music, moving images, and the like display information such as operation contents and music names on a display unit provided in the main body. When remote operation is possible with a remote controller (Remote Controller), the operation content of the remote controller is also displayed on the display unit.

  For example, when a playback key is pressed on the remote control device for an audio device having a CD (Compact Disc) playback function, the audio device that has received an operation signal from the remote control device starts playback of the CD, Characters such as “PLAY” indicating that playback is in progress and the song number, song title, artist name, etc. of the song that has started playback are displayed on the display unit. When the audio device has a broadcast reception function, not only playing a CD, the reception frequency and the broadcast station name are displayed, and the audio device plays back audio data recorded in an HDD (Hard Disk Drive) or memory. In this case, the information recorded in the tag information such as the music name and artist name is displayed.

When the user is away from the audio device, it is difficult to see the character data displayed on the display unit of the audio device. In view of this, it has been proposed to provide a display on the remote control device and display character data received from the audio device on the remote control device side (see Patent Document 1).
JP 2001-218283 A

  However, when the remote control device is not provided with a display, information such as a song name must be displayed on a display unit provided in the information recording / reproducing apparatus main body. In addition, there are devices that can change the display size in the display unit, as is often used in mobile phones, etc., but unless the user instructs to change the display size, the display size of information displayed on the display unit is It was constant.

  Therefore, conventionally, the same display size is displayed regardless of whether the user operates from near the display unit or from a position away from the display unit. In particular, the compressed audio data recorded in the HDD, memory, etc. is given a song name, artist name, album name, etc. in advance by CDDB (CD DataBase), etc., and the number of characters to be displayed is large. When the user is at a position away from the recording / reproducing apparatus, it is difficult to visually recognize the display contents.

  The present invention has been made in view of the above-described problems in the prior art, and an object of the present invention is to perform display with a display size corresponding to the distance from the user.

In order to solve the above problem, the invention according to claim 1 is a display device that displays information on a display unit based on an operation signal from a remote control device for remote operation, and receives the operation signal from the remote control device. And a control unit that changes a display size of information displayed on the display unit according to the intensity of the operation signal received by the reception unit, and the control unit is The lower the intensity of the received operation signal, the larger the display size of the information displayed on the display unit and the display of the information with the number of lines corresponding to the display size of the information displayed on the display unit. When the number of lines is reduced according to the display size, the character string displayed on the reduced line is connected to the character string displayed on the remaining line, and the connected character string is scroll-displayed .

According to a second aspect of the present invention, in the display device according to the first aspect, the operation signal from the remote control device is invisible light, and the receiving unit determines a light amount of the invisible light according to the light amount. The control unit changes the display size of the information displayed on the display unit according to the voltage value .

A third aspect of the present invention is an information recording / reproducing apparatus including the display device according to the first or second aspect.

According to a fourth aspect of the present invention, in the information recording / reproducing apparatus according to the third aspect, the information displayed on the display unit is information relating to the content being processed in the information recording / reproducing apparatus. Yes, the control unit concatenates character strings representing information related to the content for which the processing is being performed .

According to a fifth aspect of the present invention, in the information recording / reproducing apparatus according to the fourth aspect, the control unit includes a character string indicating information related to a process being performed on the content among the information displayed on the display unit. Are displayed without being connected .

According to a sixth aspect of the present invention, in a display method for displaying information on a display unit based on an operation signal from a remote control device for remote operation, the receiving unit receives an operation signal from the remote control device, and the receiving unit The display method changes the display size of the information displayed on the display unit according to the strength of the operation signal received at the display unit, and the display unit decreases as the strength of the operation signal received at the reception unit decreases. When the display size of the information displayed on the screen is made larger, the information is displayed with the number of lines corresponding to the display size of the information displayed on the display unit, and the number of lines is reduced according to the display size Connects the character string displayed on the reduced line to the character string displayed on the remaining line, and scrolls the connected character string .

According to a seventh aspect of the present invention, in a computer program mounted on a display device that displays information on a display unit based on an operation signal from a remote control device for remote operation, the computer is operated from the remote control device. receiver for receiving signals, in accordance with the intensity of the received operation signal by the receiving unit, a program for the control unit, to function as to change the display size of the information displayed on the display unit, the The control unit increases the display size of the information displayed on the display unit as the intensity of the operation signal received by the receiving unit is weaker, and according to the display size of the information displayed on the display unit. When the information is displayed by the number of lines and the number of lines is reduced according to the display size, the character string displayed on the reduced line is connected to the character string displayed on the remaining line. Scrolls display a string the connecting.

  According to the present invention, since the display size of the information displayed on the display unit is changed according to the strength of the operation signal received by the receiving unit, the display can be performed with the display size corresponding to the distance from the user. it can.

[First Embodiment]
First, the music recording / reproducing apparatus 100 as an information recording / reproducing apparatus in the first embodiment of the present invention will be described.

  FIG. 1 shows a functional configuration of the music recording / playback apparatus 100. As shown in FIG. 1, the music recording / reproducing apparatus 100 includes a control unit 10, an operation unit 20, a display unit 30, a receiving unit 40, a storage unit 50, a reproducing unit 60, a recording unit 70, and the like. Connected by bus.

  The control unit 10 includes a CPU (Central Processing Unit), a RAM (Random Access Memory), and the like, and comprehensively controls the processing operation of each unit of the music recording / playback apparatus 100. Specifically, the CPU reads various processing programs stored in the storage unit 50 in accordance with an operation signal input from the operation unit 20 or an operation signal from the remote control device 200 received by the reception unit 40. The data is expanded in a work area formed in the RAM, and various processes are performed in cooperation with the program.

  The operation unit 20 is a functional unit that accepts an operation by a user, and includes various keys such as a direction instruction key, a determination key, and a reproduction key. 10 is output.

  The display unit 30 includes an LCD (Liquid Crystal Display) and displays various screens according to control signals output from the control unit 10.

  The receiving unit 40 receives the operation signal transmitted from the remote control device 200, converts a voltage value corresponding to the intensity of the received operation signal into a digital signal, and outputs the digital signal to the control unit 10.

  Here, FIG. 2 shows a configuration example of the receiving unit 40 when infrared light (invisible light) is used as the remote control operation signal. As shown in FIG. 2, the receiving unit 40 includes a phototransistor 41 that receives infrared light transmitted from the remote control device 200, a load resistor 42, and an A / D converter 43.

  Now, when the infrared light transmitted from the remote control device 200 is incident on the phototransistor 41, the phototransistor 41 is turned on and a collector current flows. This collector current has a value corresponding to the amount of infrared light incident on the phototransistor 41 (that is, the intensity of the operation signal). Corresponding to the increase / decrease of the collector current, the voltage value Vd across the load resistor 42 changes. The voltage value Vd is converted into a digital signal by the A / D converter 43 and output.

  Specifically, the greater the amount of infrared light received by the phototransistor 41 (that is, the closer the remote control device 200 is), the higher the voltage value Vd output from the receiving unit 40 to the control unit 10. The voltage value Vd output from the receiving unit 40 to the control unit 10 is lower as the amount of infrared light received by the receiver is smaller (that is, the remote control device 200 is farther away).

  The storage unit 50 is a storage device for storing various data. The storage unit 50 stores various processing programs executed by the control unit 10, music files, a display size correspondence table 51 (see FIG. 3), and the like.

  The music file is music data in a format such as MP3 (MPEG Audio Layer-3), WMA (Windows Media (registered trademark) Audio), or AAC (Advanced Audio Coding). The tag information of the music file includes a song name, artist name, album name, and the like.

  The display size correspondence table 51 is a table in which the voltage value Vd output from the receiving unit 40 is associated with the display size. FIG. 3 shows an example of the display size correspondence table 51. As shown in FIG. 3, when the voltage value Vd is V1 or more, the display size is “small”, and when the voltage value Vd is less than V1, the display size is “large”. The value of V1 is predetermined.

  The playback unit 60 converts music data into an analog signal based on the music file to be played back stored in the storage unit 50 in accordance with an instruction from the control unit 10, and outputs sound from the speaker. The playback unit 60 may play back music files recorded on a CD, MD (MiniDisc), or the like.

  The recording unit 70 records a music file on a CD-R (CD-Recordable), MD, or the like according to an instruction from the control unit 10.

  The control unit 10 causes the display unit 30 to display information based on an operation signal from the operation unit 20 or the remote control device 200. Here, the “information” includes not only information displayed in response to the operation signal but also information related to processing being executed by the music recording / playback apparatus 100.

  When the operation signal from the remote control device 200 is received by the receiving unit 40, the control unit 10 determines the display size of information displayed on the display unit 30 according to the strength of the operation signal received by the receiving unit 40. change. The control unit 10 increases the display size of the information displayed on the display unit 30 as the strength of the operation signal received by the receiving unit 40 is weaker. The strength of the operation signal corresponds to the voltage value Vd output from the receiving unit 40, and the voltage value Vd increases as the strength of the operation signal increases.

  Specifically, when the operation signal is received by the receiving unit 40, the control unit 10 causes the display unit to display the display size “small” when the voltage value Vd output from the receiving unit 40 is equal to or greater than V1, When the voltage value Vd output from 40 is less than V1, display is performed with the display size “large”.

  Further, the control unit 10 displays information with the number of lines corresponding to the display size of the information displayed on the display unit 30. Specifically, when the display size is “small”, it is displayed in 4 lines, and when the display size is “large”, it is displayed in 2 lines. Note that the number of lines according to the display size can be changed as appropriate.

  The remote control device 200 is for remotely operating the music recording / playback device 100 and includes a control unit, an operation unit, a storage unit, a transmission unit, and the like, and transmits an operation signal according to the content operated by the user on the operation unit. To do. Specifically, remote control device 200 outputs infrared light modulated according to the operation content.

Next, the operation of the music recording / playback apparatus 100 will be described.
FIG. 4 is a flowchart showing processing executed in the music recording / playback apparatus 100. This process is realized by software processing in cooperation with the CPU of the control unit 10 and the program stored in the storage unit 50.

  First, the control unit 10 determines whether or not the operation signal from the remote control device 200 is received by the receiving unit 40 (step S1). If no operation signal is received (step S1; NO), the process returns to step S1.

  When the operation signal is received (step S1; YES), the control unit 10 determines whether or not the voltage value Vd output from the receiving unit 40 is equal to or higher than V1 (step S2).

  When the voltage value Vd output from the receiving unit 40 is equal to or greater than V1 (step S2; YES), the control unit 10 refers to the display size correspondence table 51 and displays the display size “small” corresponding to “V1 or greater”. Is read out. And the display size of the information displayed on the display part 30 is made "small" by the control part 10 (step S3).

On the other hand, when the voltage value Vd output from the receiving unit 40 is less than V1 (step S2; NO), the control unit 10 refers to the display size correspondence table 51 and displays the display size corresponding to “less than V1”. “Large” is read out. And the display size of the information displayed on the display part 30 is made "large" by the control part 10 (step S4).
The process ends here.

  FIGS. 5A and 5B show examples of screens displayed on the display unit 30. FIG. Here, an example is shown in which a music file having a song name “MUSICTITLE123”, an album name “ALBUMTITLEAAA”, and an artist name “ARTISTNAMEBBB” is being played. FIG. 5A shows an example in which a character string is displayed with the display size “small”. When the display size is “small”, each piece of information is displayed in four lines. FIG. 5B shows an example in which a character string is displayed with the display size “large”. When the display size is “large”, each piece of information is displayed in two lines. Therefore, “PLAY” indicating that playback is in progress is always displayed on the first line, and “PLAY” is displayed on the second line. The string “MUSICTITLE123 ALBUMTITLEAAA ARTISTNAMEBBB” is scrolled and displayed. The displayed information is not limited to a character string, but may be a symbol, code, figure, or the like.

  As described above, according to the music recording / reproducing apparatus 100 of the first embodiment, when the operation signal is received by the reception unit 40, according to the strength of the operation signal received by the reception unit 40, Since the display size of the information displayed on the display unit 30 is changed, the display size can be displayed according to the distance from the user. Specifically, in order to detect the intensity of the operation signal, a method of converting the amount of infrared light into a voltage value Vd corresponding to the amount of light is displayed on the display unit 30 according to the voltage value Vd. The display size of information can be changed.

  In addition, since the display size of the information displayed on the display unit 30 is increased as the strength of the operation signal received by the receiving unit 40 is weaker, the user performs an operation from a position away from the music recording / reproducing device 100. In some cases, the display size can be increased so as to be easily recognized. On the other hand, when the user performs an operation from a position close to the music recording / reproducing apparatus 100, the information amount can be prioritized because the display is possible even when the display size is small.

[Second Embodiment]
Next, a music recording / reproducing apparatus as an information recording / reproducing apparatus in the second embodiment of the present invention will be described. The music recording / playback apparatus in the second embodiment has the same configuration as that of the music recording / playback apparatus 100 shown in the first embodiment. The illustration and description are omitted. Hereinafter, a configuration and processing characteristic of the second embodiment will be described.

  In the first embodiment, the case where two types of display sizes are provided and the display size is changed in two stages according to the intensity of the operation signal received by the receiving unit 40 has been described. However, in the second embodiment, A case will be described in which three display sizes are provided and the display size is changed in three stages according to the intensity of the operation signal received by the receiving unit 40.

  The storage unit 50 stores a display size correspondence table 52. FIG. 6 shows an example of the display size correspondence table 52. As shown in FIG. 6, when the voltage value Vd is V2 or more, the display size is “small”, and when the voltage value Vd is V3 (V3 <V2) or more and less than V2, the display size is “medium”. When Vd is less than V3, the display size is “large”. The values of V2 and V3 are predetermined.

  When the operation signal from the remote control device 200 is received by the receiving unit 40, the control unit 10 determines the display size of information displayed on the display unit 30 according to the strength of the operation signal received by the receiving unit 40. change. The control unit 10 increases the display size of the information displayed on the display unit 30 as the strength of the operation signal received by the receiving unit 40 is weaker. The strength of the operation signal corresponds to the voltage value Vd output from the receiving unit 40, and the voltage value Vd increases as the strength of the operation signal increases.

  Specifically, when the operation signal is received by the receiving unit 40, the control unit 10 causes the display unit to perform display with the display size “small” when the voltage value Vd output from the receiving unit 40 is V2 or more. When the voltage value Vd output from 40 is V3 or more and less than V2, the display size is “medium”, and when the voltage value Vd output from the receiving unit 40 is less than V3, the display size is “large”. Make it.

  Further, the control unit 10 displays information with the number of lines corresponding to the display size of the information displayed on the display unit 30. Specifically, when the display size is “small”, it is displayed in 4 lines, when the display size is “medium”, it is displayed in 3 lines, and when the display size is “large”, it is displayed in 2 lines. Display. Note that the number of lines according to the display size can be changed as appropriate.

Next, the operation of the music recording / playback apparatus according to the second embodiment will be described.
FIG. 7 is a flowchart illustrating processing executed in the music recording / playback apparatus according to the second embodiment. This process is realized by software processing in cooperation with the CPU of the control unit 10 and the program stored in the storage unit 50.

  First, the control unit 10 determines whether or not the operation signal from the remote control device 200 is received by the receiving unit 40 (step S11). When the operation signal is not received (step S11; NO), the process returns to step S11.

  When the operation signal is received (step S11; YES), the control unit 10 determines whether or not the voltage value Vd output from the receiving unit 40 is equal to or greater than V2 or equal to or greater than V3. (Step S12, Step S13).

  When the voltage value Vd output from the receiving unit 40 is V2 or more (step S12; YES), the control unit 10 refers to the display size correspondence table 52 and displays the display size “small” corresponding to “V2 or more”. Is read out. And the display size of the information displayed on the display part 30 is made "small" by the control part 10 (step S14).

  When the voltage value Vd output from the receiving unit 40 is not less than V3 and less than V2 (step S12; NO, step S13; YES), the control unit 10 refers to the display size correspondence table 52 and reads “V3 or more V2 The display size “medium” corresponding to “less than” is read out. Then, the control unit 10 sets the display size of the information displayed on the display unit 30 to “medium” (step S15).

When the voltage value Vd output from the receiving unit 40 is less than V3 (step S12; NO, step S13; NO), the control unit 10 refers to the display size correspondence table 52 and corresponds to “less than V3”. The display size “large” to be read is read out. And the display size of the information displayed on the display part 30 is made "large" by the control part 10 (step S16).
The process ends here.

  FIGS. 8A, 8B, and 8C show examples of screens displayed on the display unit 30. FIG. Here, an example is shown in which a music file having a song name “MUSICTITLE123”, an album name “ALBUMTITLEAAA”, and an artist name “ARTISTNAMEBBB” is being played. FIG. 8A shows an example in which a character string is displayed with the display size “small”. When the display size is “small”, each piece of information is displayed in four lines. FIG. 8B shows an example in which a character string is displayed with the display size “medium”. When the display size is “medium”, each piece of information is displayed in three lines. Therefore, “PLAY” indicating that playback is in progress is always displayed on the first line, and “PLAY” is displayed on the second line. “MUSICTITLE123” is always displayed, and the character string “ALBUMTITLEAAA ARTISTNAMEBBB” is scrolled and displayed on the third line. FIG. 8C shows an example in which a character string is displayed with the display size “large”. When the display size is “large”, each piece of information is displayed in two lines. Therefore, “PLAY” indicating that playback is in progress is always displayed on the first line, and “PLAY” is displayed on the second line. The string “MUSICTITLE123 ALBUMTITLEAAA ARTISTNAMEBBB” is scrolled and displayed. The displayed information is not limited to a character string, but may be a symbol, code, figure, or the like.

  As described above, according to the music recording / reproducing apparatus of the second embodiment, when the operation signal is received by the reception unit 40, the display is performed according to the strength of the operation signal received by the reception unit 40. Since the display size of the information displayed on the unit 30 is changed, the display size can be displayed according to the distance from the user. Specifically, in order to detect the intensity of the operation signal, a method of converting the amount of infrared light into a voltage value Vd corresponding to the amount of light is displayed on the display unit 30 according to the voltage value Vd. The display size of information can be changed.

  Moreover, since the display size of the information displayed on the display unit 30 is increased as the strength of the operation signal received by the receiving unit 40 is weaker, when the user performs an operation from a position away from the music recording / reproducing apparatus. Can increase the display size so that it can be easily seen. On the other hand, when the user performs an operation from a position close to the music recording / playback apparatus, the information amount can be prioritized because the display is possible even when the display size is small.

  The descriptions in the above embodiments are examples of the information recording / reproducing apparatus according to the present invention, and the present invention is not limited to this. The detailed configuration and detailed operation of each part constituting the apparatus can be changed as appropriate without departing from the spirit of the present invention.

  For example, although cases have been described with the above embodiments where infrared light is used as invisible light emitted from the remote control device 200, invisible light other than infrared light may be used.

  In each of the above-described embodiments, the apparatus for recording / reproducing a music file has been described. However, the present invention is not limited to music but can be applied to an apparatus for recording / reproducing a moving image or the like. Further, the present invention can be applied to an information recording apparatus that only records (recording / recording) information such as music and moving images, and an information reproducing apparatus that performs only reproduction. In addition, the display device or information recording / reproducing device that is a display size control target may be fixedly installed in a home, a facility, or the like, or may be mounted on a vehicle.

  In each of the above embodiments, when the operation signal is received by the receiving unit 40, the display size is set in two levels (small, large) or three levels (small, medium, large) according to the strength of the operation signal. However, the display size may be controlled by dividing into more stages. Further, the display size may be changed gently according to the intensity of the operation signal.

  In the above description, an example in which the storage unit 50 is used as a computer-readable medium storing a program for executing each process has been disclosed, but the present invention is not limited to this example. As other computer-readable media, a non-volatile memory such as a flash memory and a portable recording medium such as a CD-ROM can be applied. A carrier wave may be applied as a medium for providing program data via a communication line.

It is a block diagram which shows the functional structure of the music recording / reproducing apparatus in the 1st Embodiment of this invention. It is a circuit block diagram of a receiving part. It is an example of a data structure of a display size correspondence table. It is a flowchart which shows the process performed in the music recording / reproducing apparatus of 1st Embodiment. (A) And (b) is the example of a screen displayed on a display part. It is a data structural example of a display size correspondence table. It is a flowchart which shows the process performed in the music recording / reproducing apparatus of 2nd Embodiment. (A), (b), and (c) are examples of screens displayed on the display unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Control part 20 Operation part 30 Display part 40 Reception part 41 Phototransistor 42 Load resistance 43 A / D converter 50 Memory | storage part 51 Display size correspondence table 52 Display size correspondence table 60 Playback part 70 Recording part 100 Music recording / reproduction apparatus 200 Remote control apparatus

Claims (7)

In a display device that displays information on a display unit based on an operation signal from a remote control device for remote operation,
A receiving unit for receiving an operation signal from the remote control device;
A control unit that changes a display size of information displayed on the display unit according to an intensity of an operation signal received by the reception unit;
Equipped with a,
The control unit increases the display size of information displayed on the display unit as the strength of the operation signal received by the receiving unit is weaker, and according to the display size of information displayed on the display unit. When the number of lines is displayed and the number of lines is reduced according to the display size, the character string displayed on the reduced line is connected to the character string displayed on the remaining line, and A display device that scrolls the connected character strings . The operation signal from the remote control device is invisible light,
The receiving unit converts the light amount of the invisible light into a voltage value corresponding to the light amount,
The control unit changes a display size of information displayed on the display unit according to the voltage value.
The display device according to claim 1 . An information recording / reproducing apparatus comprising the display device according to claim 1 . The information displayed on the display unit is information related to the content being processed in the information recording / reproducing apparatus,
The control unit concatenates character strings representing information related to the content for which the processing is being performed.
The information recording / reproducing apparatus according to claim 3. The control unit displays information related to the process being executed on the content among the information displayed on the display unit without connecting character strings.
The information recording / reproducing apparatus according to claim 4. In a display method for displaying information on a display unit based on an operation signal from a remote control device for remote operation,
The operation signal from the remote control device is received by the receiving unit,
A display method for changing a display size of information displayed on the display unit according to an intensity of an operation signal received by the receiving unit ,
The lower the intensity of the operation signal received by the receiving unit, the larger the display size of the information displayed on the display unit, and the number of lines corresponding to the display size of the information displayed on the display unit. When the information is displayed and the number of lines is reduced according to the display size, the character string displayed on the reduced line is connected to the character string displayed on the remaining line, and the connected character string is Display method to scroll display . Based on an operation signal from a remote control device for remote operation, in a computer program mounted on a display device that displays information on a display unit,
The computer,
A receiver for receiving an operation signal from the remote control device;
A control unit that changes a display size of information displayed on the display unit according to an intensity of an operation signal received by the reception unit;
A program for functioning as,
The control unit increases the display size of information displayed on the display unit as the strength of the operation signal received by the receiving unit is weaker, and according to the display size of information displayed on the display unit. When the number of lines is displayed and the number of lines is reduced according to the display size, the character string displayed on the reduced line is connected to the character string displayed on the remaining line, and A program that scrolls concatenated character strings .

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