JPS60244164A - Television receiver - Google Patents

Abstract

PURPOSE:To display the time and calendar on a picture plane and to confirm visually an unset state of a timepiece by securing a calendar display mode of the relevant month when a data is set to a TV receiver and then an automatic calendar changing mode when no date is set to the TV receiver respectively. CONSTITUTION:A mode switching key 28 and a timer key 29 which turns on and off a reserved timer are connected to a control circuit 20 containing a program timer function using a microcomputer of a TV receiver. A CRT control circuit 25 incorporated to a character generator is actuated by a command of the circuit 20 to supply character signals SR-SB to a CRT5. While the circuit 20 applies the control signals to an electronic tuning circuit 12, video output circuit 4 and a sound control circuit 27. When a date is set by keys 28 and 29, a calendar mode of the corresponding month is set. While an automatic calender changing mode is set when no date is set. Then the time and the calender are displayed on the CRT scope. Thus an unreset state of a timepiece can be confirmed visually and easily.

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a television receiver capable of displaying a clock and a calendar on the picture tube surface, and in particular, to an automatic turning-over display of a monthly calendar when the clock is not set. Regarding television receivers capable of

BACKGROUND TECHNOLOGY AND PROBLEMS In current television receivers, the current time signal is sent from the station only during a specific time period, so it is displayed only during a specific time period, and at other times, It is impossible to check the current time on the TV screen. However, when watching a broadcast program, it would be convenient if the current time etc. could be selectively displayed and superimposed on the television screen. At this time, it would be more convenient if today's date, day of the week, etc. could be displayed at the same time.

Also, when there is no calendar hanging in the living room or drawing room where the television receiver is located,
It would be extremely convenient if a calendar could be displayed on the screen instead of the television image.

In this way, when displaying a clock display (including display of date, etc.) and a calendar display on the same CRT screen, if the clock display can be selected with priority over the calendar display, the clock display will be It is preferable to change the next calendar display state between when the clock is set and when it is not, because this can visually remind the user that the clock has not been set.

Furthermore, it is somewhat advantageous to display the calendar in an automatic month-turning mode when the clock is not set. for example,
This is because when a television receiver is placed as a product in a store, the demonstration effect is further enhanced by automatically flipping the calendar display.

Purpose of the Invention Therefore, in the present invention, it is possible to display a clock and a calendar using the same CRT screen, and to display a calendar that automatically flips when the clock is not used. The present invention proposes a television receiver whose status can be easily checked visually.

SUMMARY OF THE INVENTION Therefore, in the present invention, in a television receiver in which the set date and calendar are displayed on the picture tube surface, when the date is set, the current month's calendar display mode is set, and the 84-inch The above object is achieved by setting the calendar to automatic turning display mode when the calendar is not set.

Embodiment Next, an example of a television receiver according to the present invention will be explained in detail with reference to FIG. 1 and subsequent figures.

In this invention, the basic image is a television image, and the images to be replaced with or superimposed on this television image are a calendar image and a clock image, but images other than these are also the same. It may also be possible to display it on the CRT tube surface. In addition to these images, the television receiver to which this invention is applied can also display program reservation details and the like.

FIG. 1 shows an example of a television receiver according to the present invention, in which (1) is a tuner, (2) is a video intermediate frequency amplification circuit, (3) is a video detection circuit, (4) is a video output circuit, (
5) is a picture tube (CRT), (6) is an audio intermediate frequency amplification circuit, (7) is an output amplifier, (8) is a speaker, (9) is a horizontal and vertical deflection circuit, and (11) is a deflection system. (12) is an electronic tuning circuit; (13) is a decoder that receives remote control signals and channel selection signals inside the receiver;
(14) is a channel selection voltage forming circuit, and (15) is a PLL that receives this selection voltage. In addition, a decoder (1
The output of 3) is supplied to an AC power supply control circuit (17). (18) is a light receiving element for remote control signals.

Further, (20) is a control circuit having a program timer function for image display, and its main body is a microcomputer. In response to the command from the control circuit (20), the CRT*J control circuit (25), which has a built-in character generator, operates. Red to blue character signals sR, sG, and sB are generated from the CRT control circuit (25). In addition, the control circuit (2
0) is a blanking signal BLK for erasing the TV image.
is sent to the video output circuit (4), and if necessary, a buzzer sound is sounded at the end of the key operation.
The audio control signal S is sent to the audio control circuit (2
7).

The AND circuit (19) is for inhibiting input of a remote control signal by pulse P1 when a control signal is being sent from the control circuit (20) to the electronic tuning circuit (12).

(28) is a mode switching key provided on the receiver body, in this example PPC (Programab!e Pic
(29) is a timer key that can turn on and off the reservation timer, and the command data is taken into the CPU via the I10 port provided in these block control circuits (20). .

FIG. 2 shows an example of the key layout provided on the commander (30). The commander (30) is used for channel selection, power on/off, etc., as well as for displaying the current time as described above. Among the multiple keys, (31) is a channel direct selection key, the PPC key is a mode switching key with the same function as the one provided on the main unit, (32)
, (33) is "+".

"-" key, (34) and (35) are shift keys to shift the data setting mark "↓" left and right, (36)
is a pencil-shaped clock start key.

In this invention, the microcomputer performs time display, calendar display, etc. Figure 3 is a display flowchart that explains the above-mentioned image display in relation to key operations.Using this to explain the outline of the operation procedure, first, when the main power is turned on, a normal TV image (hereinafter this TV image, etc.) is displayed. (The display image is called a page) (step a) is displayed, and if you press the PPC key here, if the current time is in cents, a predetermined year and month will be displayed on the TV image, regardless of the actual year, month, and day. The date and time are superimposed (
Step b). An example of the date and time display is shown in FIG. 4A. The predetermined date is just one example.

When the current time is set and the clock is already running, the actual date and time are superimposed and displayed (step C). If the current time is in cents, set the current time in step d) and turn on the clock start key (36) (step e). From that point on, the timer program operates and starts counting, and the process moves to step C. .

Instead of operating the clock start key (36),
If the clock is not in the c-teen range, the clock starts the clock mode in the same way as when the clock start key (36) is operated, and the current month's calendar is displayed instead of the television image (step f). If the PPC key is pressed while in step C, the current month's calendar will be displayed in the same way.

When the PPC key is pressed after step f, the channel reservation mode is entered (step g), and a channel reservation image is displayed on the CRT screen in place of the television image.

An example of a reservation image is shown in FIG. 4B. To reserve a channel, click
In this example, the timer off time is fixed at about 2 hours from the timer on. Since channel reservation is not directly related to the gist of the present invention, further explanation will be omitted.

If you press the PPC key while reserving a channel or after reserving a channel, a normal TV image will be displayed.

Also, if you press the PPC key in step b, or press the P and pc keys in step d with the cursor at the r100J position, a demonstration calendar will be displayed ( Step h). An example of a demonstration calendar is shown in FIG. 4C. In this way, the year and month displayed in step b are displayed on the demonstration calendar. This demonstration calendar is incremented at intervals of several seconds (2 to 3 seconds), and the calendar for the next month is displayed in sequence. In this case, all dates on the calendar disappear once, and the next moment a scroll-down display is performed in which the days are displayed sequentially from the 1st. The calendar follows the Gregorian calendar and runs from January 000 to December 9999.
Displays up to the month.

In this way, when the year, month, day, and time are not set, the monthly calendar is automatically turned over, so that it is possible to visually confirm that the current time has not been set. If the PPC key is pressed in this state, the display will be switched to the channel reservation display.

FIG. 5 is a flowchart showing an example of a display operation according to program data written in a ROM provided in the control circuit (20).

When the program starts, it moves to the main processing routine of step 4o, where remote control data and key manual data inside the receiver are checked, and processing for realizing other display modes such as channel reservation is performed. Then, in step 41, it is determined whether or not the page has changed. If the page has not changed, it is determined in step 42 whether or not the page displayed on the CRT screen is a calendar display. If the page is not a calendar display, the main Return to processing step 40.

When the page changes due to the operation of the PPC key, the process moves to step 43, and it is determined whether the current page is a calendar display or another display.If the current page is not a calendar display, the process returns to step 40, but it is determined that the current page is a calendar display. Sometimes, in step 44, initial values for the calendar display are read. This initial value is data for display as described above when the clock is uncensored.
When the clock has been marked, this is the data for displaying the year and month of the current month.

Next, the cent state of the current time is determined in step 45, and when the current time is cent and the clock timer has started, the current month's calendar data is successively displayed in step 46, and the current month's calendar data is displayed in step 47. The data is sent to the video output circuit stage and the current month's calendar is displayed instead of the television image.

If the current time has not yet been set, the process moves to a step for automatically turning over the demonstration calendar. That is, the counter that determines the automatic turning cycle of the demonstration calendar is set at step 48.
After the counter is incremented in step 49, the overflow state of the data of this counter is determined, and if there is no overflow, a demonstration calendar is displayed (step 47). This counter is counted up only during the automatic turning period, and when the automatic turning period (2 to 3 seconds) is reached, the data of this counter overflows, so in this case, the counter is reset in step 50, and in step 51. The display month of the demo calendar is incremented and the display month is updated. When the displayed month is updated, the updated monthly calendar is displayed again only during the automatic turning cycle. As shown in FIG. 4C, the displayed month is updated for each of the "day" and "month" display, and when December changes from January to January, the year is also incremented.

In addition, from the CRT control circuit (25) shown in FIG.
Blue character signal 5R-sB is output, and in the case of calendar display, the background is completely blue, Sunday rSUJ is displayed, the date related to this day is red, and other days rMD (Monday) to SA (Saturday)'' and The date is controlled based on command data from the control circuit (20) so that the date is displayed in green.

As described in detail, the present invention allows clock and calendar displays to be displayed using the same CRT tube surface. When the clock is set, the current month's calendar is displayed instead of the TV image, and when the clock is not set, the calendar is automatically turned over, so that it is easy to visually confirm that the clock is not set.

Of course, even if the time is set, the cursor is rlo
When the clock is in the OJ era position, pressing the PPC key does not start the clock, and the calendar automatically turns over at this time as well, so that it is easy to confirm that the clock has not been set.

Furthermore, since the calendar display is automatically turned over when the clock is not set, for example, when displaying a television receiver as a product at a store, the demonstration effect can be further enhanced by setting the calendar display to turn over automatically. It also has the effect of increasing

[Brief explanation of the drawing]

FIG. 1 is a system diagram showing an example of a television receiver according to the present invention, FIG. 2 is a plan view showing an example of a commander key arrangement, and FIG. 3 is a chart showing an example of display transition of the present invention. FIG. 4 is a diagram showing an example of a display image, and FIG. 5 is a flowchart showing an example of the display operation of the present invention. (20) is a control circuit, (25) is a CRT control circuit, -5
R-sB is a character signal. Fig. 2 2 Fig. 3 Fig. 4 C Fig. 4 B

Claims (1)

[Claims] In a television receiver that displays a set date and calendar on the picture tube surface, when the above date is marked, the mode is set to display the current month's calendar,
A television receiver in which the calendar is set to an automatic turning display mode when the cents for the above date are not recorded.