JP2925802B2 - Receiver channel storage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television (TV).
The present invention relates to a channel storage device suitable for use in a receiver having a channel selection function and a clock function in a receiver such as a receiver, a video tape recorder (VTR), and a radio receiver.

[0002]

2. Description of the Related Art In a TV receiver, a VTR, and the like, a function called a so-called "last channel memory" is added. This last channel memory function is to store the last selected channel when operating last time,
When operating next time, it is a function to operate from the last stored channel.

[0003]

By the way, in the last channel memory, for example, the operation starts on the same channel as when the last operation was performed. Is rare, and rather the channel (program) you want to watch is often determined by the day of the week, the time, and the time zone. In most cases, when the power is turned on and the screen is displayed, the channel that you want to watch first is performed I have to.

Accordingly, an object of the present invention is to solve such a drawback.

[0005]

A channel selecting means for selecting a receiving channel, a clock means for counting a current day of the week time,
Storage means for storing at least two or more channel data corresponding to the day of the week; power-on detection means for detecting whether or not the power switch is turned on; While always repeating the operation of updating the oldest channel data corresponding to the currently received channel data being tuned by the tuning means, and detecting that the power is turned on by the detection means, The day of the week at the time of insertion is called from the clock unit, the most frequent channel data among the channel data corresponding to the day of the week is read out from the storage unit, and the channel selection unit selects a channel according to the channel data. And a storage control means for causing the localization.

[0006]

According to the above arrangement, the channel frequently viewed at that time is automatically selected at the same time when the power is turned on.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram of a main part of a VTR embodying the present invention, FIG. 2 is an operation flowchart thereof, FIG. 3 is a memory map, 8 is a tuner, 7 is a tuning circuit for allowing the tuner to select reception. , 6 is a memory for storing day time data, 3 is a tuning control unit for controlling the tuning circuit 7, 4
Is a clock circuit having data of the current day of the week time, 1 is VT
This is a system control microcomputer (system controller) that controls the R system. The system controller 1 also detects whether or not a power switch (power switch) of the VTR is turned on. Reference numeral 5 writes channel data to the memory 6 based on data from the system controller 1, the clock circuit 4, and the tuning control unit 3, and controls the tuning control unit 3. Note that the tuning control unit 3, the clock circuit 4, and the channel storage control unit 5 are actually configured by a one-chip microcomputer.

Next, the operation of the channel storage controller will be described with reference to FIG.
Will be described according to the flowchart of FIG.

First, it is determined whether the power is on or not.
A check is made based on information from the system microcomputer 1 (S1). Here, if the power is not turned on, the process ends.

If it is detected in step 1 (S1) that the power is on, then it is checked based on information from the system microcomputer 1 whether or not the power has just been turned on (S2). Here, whether or not it is right now is determined by determining whether or not a certain extremely short time has elapsed since the power switch was turned on. If it is determined that the power has just been turned on, the most frequent channel data among the channel data corresponding to the current day of the week time is read from the memory 6. That is, the configuration of the memory 6 is as shown in FIG.
Since the data for the channels is input, if there are two or more identical channel data, they will be read.

For example, assuming that the current time is 20:30 on Monday, as shown in the memory map of FIG.
The data of the channel (2CH) is read. If all three channels are different, the last updated channel data is read. The update is performed in the order of the memory addresses 1, 2, and 3. In the memory map of FIG. 3, CH indicates a terrestrial broadcast channel, and BS indicates a satellite broadcast channel.

When the channel data is read out in step 3, the channel data is supplied to the channel selection control unit 3 in step 4 (S4). For example, control is performed so as to select two channels, and the processing ends.

If the power has not just been turned on in step 7, the process proceeds to step 5 (S5). In step 5, the current day-of-week time is read from the clock circuit 4, and it is checked whether it is the data fetch time. Step 5
If it is not the data capture time, the process ends. Step 5
When it is determined that the current time is the data fetching time, the currently selected channel data is obtained from the channel selection control unit 3 and stored in a predetermined address of the memory 6 to update the data. For example, if the current date and time is 22:15 on Wednesday, the channel data with the oldest update time among the channel data (BS7, BS7, BS11) is updated. The time interval for capturing the channel data is, for example, 30 hours longer than the one-hour interval.
Although a minute interval is preferable, the required memory capacity increases in that case.

In the above embodiment, three data of the same day of the week are stored, and data of the same time zone on the same day is stored for the past three weeks. The number may be further increased.

According to the present embodiment, when the power is turned on, the channel which is frequently watched or listened to at the time of the day of the week is selected, so that the user does not have to select the channel when the power is turned on. is there.

[0017]

As described above, according to the present invention, when the power is turned on, the channel which is often viewed or heard at the time of the day of the week is selected, so that the user has the trouble of selecting the channel upon turning on the power. Can be omitted.

[Brief description of the drawings]

FIG. 1 is a main block diagram of a VTR embodying the present invention.

FIG. 2 is an operation explanatory diagram of FIG. 1;

FIG. 3 is a diagram showing a configuration of a memory used in an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 System control microcomputer 3 Tuning control unit 4 Clock circuit 5 Channel storage control unit 6 Memory 7 Tuning circuit 8 Tuner

Continuation of front page (56) References JP-A-3-214919 (JP, A) JP-A-4-207718 (JP, A) JP-A-4-137825 (JP, A) JP-A-4-82410 (JP) JP-A-4-68620 (JP, A) JP-A-3-289211 (JP, A) JP-A-3-250912 (JP, A) JP-A-3-134588 (JP, A) 2-116226 (JP, A) JP-A-1-236826 (JP, A) JP-A-1-168124 (JP, A) JP-A-4-162816 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04B 1/06

Claims (1)

(57) [Claims] 1. A channel selecting means for selecting a receiving channel; a clock means for counting the current day of the week; a memory for storing at least two or more channel data corresponding to the day of the week; Power-on detecting means for detecting the oldest channel data corresponding to the day of the week in the storage means at regular time intervals while the power is on. When the power is turned on by the detection means, the day of the week at the time of power on is called from the clock means, and the channel data corresponding to the day of the week is most frequently read out. The channel data having a high frequency is read out from the storage means, and the channel according to the channel data is stored in the tuning means. And a storage control unit serving as allowed to station includes channel storage apparatus of a receiver comprising.