JPH10282275A - Electronic equipment for displaying year in christian era and method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately grasp a year according to the Christian era by allowing a second display part to indicate the lower two digits of a year according to the Christian era and a first display part to indicate the upper two digits when setting a year according to the Christian era. SOLUTION: When a date display signal is inputted, a display control part 62 performs control so that a date is displayed at a liquid crystal display 30. The display control part 62 reads current date data from a memory 63 and displays only the lower two digits '97' of 1997, mouth, and date at a second display part 82 of the liquid crystal display 30 in this order. At this point, a first display part 81 displays a track number '02'. Then, according to the control by the system controller part 61 where a time-setting signal is inputted, the display control part 62 reads date data from the memory 63 to change current time data and displays the data at a liquid crystal display part 30. At this time, a first display part 81 displays the upper two digits '19' instead of '02'. Therefore, a year can be totally displayed, thus enabling a user to set a date accurately without any mistake.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for displaying the year in the Christian era, and more particularly to an apparatus and a method for displaying the year in the Christian era on an electronic device such as an audio device.

[0002]

2. Description of the Related Art DAT (Digital Audio Tape Recorder)
r) Other electronic devices are provided with a display device for displaying a track number, a reproduction time, and the like of reproduced information (such as a song) during reproduction of a recording medium such as a tape. DAT and the like have a calendar function for specifying a date and time. With the calendar function, the current date and time can be displayed on the display device.

In general, a display device such as a DAT is a DAT.
The size of the tape is limited for reasons such as miniaturization, and the displayed playback time, date, and time of the tape are individually switched and displayed by a changeover switch or the like.

[0004] At present, when the year 2000 is approaching, the year data of the year displayed internally by the calendar function has four digits of the year. On the other hand, the display device displays the display data other than the year, for example, that the time display of the reproduction time is a two-digit display of hours, minutes, and seconds. The year is also displayed in the last two digits because the date is switched between month, day, hour, minute, and second.

[0005]

However, in such a conventional device, since the year of the year displayed on the display device is performed in the last two digits, the user is required to indicate the calendar function. There is a problem that it is not possible to accurately determine the year in which a company is located. For example, when the display of the year on the display device is “99”, it cannot be accurately determined whether the year currently recognized by the calendar function is “2099” or “1999”.

When the supply of power to the audio device is stopped, the calendar function is initialized, and when the power is re-supplied, the date display shows "00". If the year is displayed as "00" due to initialization,
There is a problem that it is impossible to determine whether the year recognized by the calendar function is "2000" or "1900".

In order to solve this problem, it is conceivable to redesign the display device to make it possible to display the four digits of the fiscal year. Therefore, there is a problem that the manufacturing apparatus is changed and a new cost is generated.

Accordingly, it is an object of the present invention to provide an electronic device and a method for accurately determining the year in the Christian era.

[0009]

SUMMARY OF THE INVENTION An object of the present invention is to provide a first display unit for displaying the last two digits of the year in the Christian era, and a second display unit for displaying information relating to reproduction of a recording medium. Display means, setting means for setting the year in the year display, and means for controlling to display the first two digits of the year in the year display on the second display when setting the year in the year display from the setting means. Is solved by an electronic device comprising:

Another object of the present invention is to provide a display method for displaying a year on a display having a display unit for displaying the last two digits of the year in the year of the Christian era and a display unit for displaying information relating to reproduction of a recording medium. Determining whether or not the mode is for setting the year in the year display, and, when determining that the mode is for setting the year in the year display, displaying the year on the display unit for displaying information related to the reproduction of the recording medium. Top 2 of the year
Displaying the digits.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

1. DAT Hereinafter, an embodiment of the present invention is referred to as DAT (Digital Audio Ta).
pe Recorder) will be described as an example. As shown in FIG.
T includes a cassette holder 2 rotatably mounted on the tape recorder main body 1, and the tape cassette 3 is mounted on the tape recorder main body 1 by inserting the tape cassette 3 into the cassette holder 2. The main body 1 is provided with a liquid crystal display unit 30 for displaying a calendar. During reproduction, a program number (track number) is displayed in addition to the calendar.

The main body 1 is provided with operation buttons such as a rewind button 15, a stop button 13, a play button 11, a fast forward button 14, and a record (record) button 12. A slide-type hold button 16 is provided on the side surface. When the hold button 16 is slid to the hold position, the device is kept in the sleep mode.

For convenience of explanation, the liquid crystal display unit 30, various operation buttons, and a cover for mounting and removing the cassette are provided on the main body 1.
Although they are shown as being on the same surface, they may be arranged in any manner depending on the operability and aesthetic design of the product. A cassette loading / unloading port is provided on the back surface of the main body, and various operation buttons can be largely arranged on the main surface. The main body 1 is provided with a volume control button or knob, a calendar setting key, an eject button for opening a cassette cover, etc., in addition to those shown, a microphone for recording, a speaker for reproduction, a terminal for line input, a line output. Terminals are also provided.

Referring to FIGS. 1 and 2, when the tape cassette 3 is mounted, a tape loading mechanism provided in the tape recorder main body 1 starts operating, and the magnetic tape 6 is moved to a head cylinder 7 having a rotating magnetic head. Is loaded on a predetermined tape running path along the route. Magnetic tape 6
Is driven by a capstan 8 and a pinch roller 9 as shown in FIG. The head cylinder 7 and the capstan 8 are driven by a cylinder motor M1 and a capstan motor M2, respectively.

An audio signal from a microphone (not shown) or a line input is input to an analog block 21 where it is amplified, and the A / D and D / A block 22 output an A / D signal.
The data is sampled, quantized and digitized by the D converter 22a, and enters the signal processing block 23. The signal processing block 23 converts the digital signal into an interleave unit 23a.
, An error correction code is added by the code generation unit 23b, and 8-10 conversion is performed by the 8-10 conversion unit 23c. The digital signal processed in this manner is converted into a head drive current by the recording amplifier 24a of the electromagnetic conversion block 24, and is recorded on the magnetic tape 6 via the recording / reproduction switch 24b.

At the time of the reproducing operation, the audio signal from the magnetic tape 6 is sent to the reproducing amplifier 24c through the recording / reproducing switch 24b of the electromagnetic conversion block 24 and amplified, and is subjected to waveform equalization by the equivalent shaping section 24d. The data is shaped and the data is extracted. This data is used as the signal processing block 2
3, where the reverse operation is performed. That is, the data is 10-8 converted by the 10-8 conversion unit 23f, subjected to error correction by the error correction unit 23e, and then deinterleaved by the deinterleave unit 23d.
The digital data thus obtained is sent to the D / A converter 22b, converted into an analog reproduction output, amplified, and sounds a speaker (not shown).

The microcontroller 25 includes a play operation button 11, a recording operation button 12, a stop operation button 13, a fast forward operation button 14, and a rewind operation button 1 provided on the key input unit 10 for selecting an operation mode of the DAT.
5. Receive operation signals from other operation buttons or keys, and send a control signal to the mechanical controller 26 according to the operation mode. Although only a limited number of keys or buttons are shown in FIG. 3 as the key input unit 10, many other operation keys such as a volume control key and a calendar setting key are also included in the key input unit 10 as described above. Further, the microcontroller 25 sends a display signal for displaying a track number at the time of reproduction and recording, a reproduction time, a time, a date, and the like to the liquid crystal display unit 30. The liquid crystal display unit 30 displays a date, a track number, and the like in response to the display signal.

The mechanical controller 26 controls the servo block 27 while communicating with the microcontroller 25. That is, the mechanical controller 26
Control the mechanical mechanism of the device.

The tracking servo at the time of reproduction is ATF (A
utomatic Track Finding) method, and the ATF unit 2
7a. An ATF area is provided on the magnetic tape 6, and when the reproducing head of the head cylinder 7 passes through the ATF area, an error between the reproducing head and a track (home track) to be traced is detected. Briefly, based on the first frequency signal (synchronous signal) recorded in the ATF area on the home track, a second frequency signal (pilot signal) on an adjacent track is sampled and held, and the head and the home track are sampled and held. Is controlled, and the difference is controlled to be zero. The capstan drive 27b of the servo block 27 controls the rotation of the capstan motor M2 based on the ATF signal. The cylinder motor M1 for rotating the head cylinder 7 is driven by a cylinder drive 27 of the servo block 27.
Driven by c.

2. Display Device FIG. 3 is a block diagram showing a process of displaying a date on the display device of the present invention. FIG. 3A shows the date display in the normal mode, and FIG. 3B shows the date display in the clock setting mode.

The microcontroller 25 includes a system control unit 61 for controlling each device of the DAT, a memory 63 for storing clock and calendar data, and a display control unit 62 for controlling the liquid crystal display unit 30.

The display control section 62 includes a liquid crystal display section 3.
0, is connected to the system control unit 61 and the memory 63, and has a calendar function for setting date and controlling display.

The liquid crystal display section 30 has a first display section 81 for displaying the track number of the tape normally reproduced.
And a second display unit 82 for switching and displaying the date, time, reproduction time, and the like.

The system control section 61 is connected to a control target system 70 including the signal processing block 23 and the mechanical controller 26 and the key input section 10 for generating an operation from a user as an input signal.

The date display processing in the normal mode will be described below. 3A, when a date display signal is transmitted from the key input unit 10 to the system control unit 61, the system control unit 61 causes the display control unit 62 to send the date to the liquid crystal display unit 30 in response to the date display signal. Is controlled to be displayed. Display control unit 62
Receives the control signal from the system control unit 61, reads the current date data from the memory 63, and displays it on the second display unit 82 of the liquid crystal display unit 30. At this time, the year “1997” in the year display in the year is represented by the last two digits “9”.
Only "7" is displayed at the first (left) two digits of the second display section 82,
Subsequently, the month and day are sequentially displayed at intervals of two digits. The displayed number is, for example, 1 like the month data in FIG.
When the digit is “2”, the first digit may be blank as shown in the figure, or “02” may be displayed with the first digit being “0”. At this time, the first display section 81 of the liquid crystal display section 30 displays the track number “02” of the tape being reproduced.

Next, a process of displaying a date in the clock setting mode will be described below. In FIG. 3B, the key input unit 1
From 0, a clock setting signal is sent to the system control 61. The system control unit 61 controls the display control unit 62 to change the current clock data stored in the memory 63 according to the clock setting signal. Here, the clock data is data including date data and time data.

The display control section 62 receives the control signal from the system control section 61, first reads out the date data from the current clock data from the memory 63,
It is displayed on the liquid crystal display unit 30. At this time, the first two digits “19” of the year “1997” in the Christian year are displayed on the first display section 81 of the display device instead of the track number. The second display section 82 of the display device is displayed in the same manner as in the normal mode. The user looks at the date displayed on the liquid crystal display unit 30 and operates the key input unit 10 to change the date to a desired date. At this time, since the year “1997” in the year display is all displayed, the user can set the date accurately without hesitation.

When the date setting is completed, the user performs a date setting end operation from the key input unit 10. In response to the date setting end signal from the key input unit 10, the system control unit 61 sends a control signal to the display control unit 62. The display control unit 62 stores the date displayed on the liquid crystal display unit 30 in the memory 63 according to the control signal. Next, the time is set in a similar manner, and the clock setting mode ends. In the time setting, the processing is performed only by the display on the second display unit 82 of the liquid crystal display unit 30.

FIG. 4 is a flowchart showing the process for setting the clock. In the normal clock display mode (301), in which the track number of the tape is displayed on the first display section 81 of the liquid crystal display section 30 and the date or time is displayed on the second display section 82, the user presses the key. When the clock setting key of the input unit 10 is pressed (302), the liquid crystal display unit 30
As shown in (b), the first two digits of the year are displayed on the first display unit 81, and the last two digits of the year, month, and day are displayed on the second display unit (303). When the user completes the setting of the year and shifts to the setting of the month (304), the display of the first two digits of the year in the first display section 81 disappears, the display returns to the normal tape track number display, and the liquid crystal is displayed. The display unit 30
The display is returned to the same display as the date display in the normal mode (30
5). When the date and time settings are completed (306), the changed clock data is stored in the memory 63, and the display returns to the normal display mode (307). In the normal mode, the display on the second display unit 82 of the liquid crystal display unit 30 does not change unless the user presses the clock setting key or the display change key of the key input unit 10 (308).

FIG. 5 shows the liquid crystal display unit 3 in the clock setting mode.
This is a view showing how 0 is displayed. The display of the date in the normal mode is indicated on the first display section 81 by the track of the tape.
The number is displayed, and the second display unit 82 displays the last two digits of the year, month, and day (401). When the user presses the clock setting key of the key input unit 10 to enter the clock setting mode, as described above, the first two digits of the year are displayed on the first display unit 81, and the lower two digits of the year are displayed on the second display unit. Two digits, month, and day are displayed. At this time, the four-digit number representing the year (“19” on the first display unit 81 and “98” on the second display unit 82) blinks or is displayed with high brightness.
The user is notified that setting (changing) of the year is possible (402). When the user further presses the clock setting key, the setting of the year is completed and the process shifts to the setting of the month, and the number representing the month is blinked or displayed with high brightness.
At this time, the display of the first display section 81 returns from the display of the first two digits of the year in the Christian era to the display of the track number of the same tape as in the normal mode (403). When the month setting is completed, the process shifts to day setting in the same manner (404). After setting the date, the second display unit 82 displays the time (hour, minute, and second).
And the time can be set. When all the settings of the date and time are completed, the user finally presses the clock setting key, so that the set clock data is stored in the memory 63, the clock setting mode is exited, and the normal clock display is performed (405). ).

Although the DAT has been described as an example, the present invention can be applied to devices such as a video deck and a camera in addition to a mini disc (MD) player, a compact disc (CD) player, a cassette tape recorder and the like. Can be.

[0032]

According to the display method of the present invention, since the year in the Christian year is displayed in four digits, the year in the Christian year can be accurately grasped without cost.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of an example of a DAT to which the present invention can be applied.

FIG. 2 is a block diagram illustrating a configuration of an example of a DAT to which the present invention can be applied.

FIG. 3 is a block diagram showing a date display process of the display device of the present invention.

FIG. 4 is a flowchart showing a process of setting a clock.

FIG. 5 is a block diagram showing a display state of a display device in a clock setting mode.

[Explanation of symbols]

Reference Signs List 10 key input unit 25 microcontroller 30 liquid crystal display unit 61 system control unit 62 display control unit 63 memory 70 controlled system

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code Fig 11B 27/34 P

Claims (3)

[Claims] 1. A first display unit for displaying the last two digits of the year in the year of the Christian era, and a second display unit for displaying information relating to reproduction of a recording medium.
Display means having a display part of the following; and setting means for setting the year of the year in the year of the Christian era. An electronic device comprising: a unit configured to control to display 2. The display device according to claim 1, wherein said first display section and said second display section are provided adjacent to each other. 3. A display method for displaying a year on a display having a display unit for displaying the last two digits of the year in the year of the Christian era and a display unit for displaying information related to reproduction of a recording medium, comprising: Determining whether or not the mode is a mode for setting the year, and when it is determined that the mode is for setting the year of the year, the display unit for displaying information related to the reproduction of the recording medium is displayed on the display unit. Displaying the two digits, the display method comprising: