KR19990042779A - Rotary channel tuning device for television - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a channel channel selection apparatus for television that includes a plurality of broadcast reception channels and tunes a desired channel by a number key and a direction key. A key input unit having a rotary key for selecting the channel corresponding to the key; A storage unit for storing channel change information corresponding to a key operation of the rotary key and tuning data for tuning a channel; The channel change control signal is fetched from the storage unit corresponding to the combination of numbers set by the rotary keys of the multi-stage, and the channel change control signal is changed to a desired channel based on the channel change information extracted from the storage unit. Generating system control unit; By providing a channel channel selection apparatus of a television, which further comprises a channel changing unit for changing a currently set channel to a predetermined other channel based on the channel change control signal of the system control unit, a user can quickly and easily select a desired channel. It has the effect of making a choice.

Description

Rotary channel tuning device for television

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a channel tuning apparatus for television, and more particularly, to selecting a broadcast reception channel of a television, including a remote controller (hereinafter, abbreviated as a remote controller) and a key panel. The present invention relates to a rotary type channel selection apparatus of a television configured to select a desired broadcast reception channel in parallel with a numeric key and a direction key.

As is well known, television broadcasting has entered the multi-channel era due to the increasing number of stations and the generalization of cable television.

As such a viewing channel is diversified, various apparatuses and methods have been developed to facilitate receiving channel selection. At present, two methods described below have become mainstream. It will be described with reference to the following.

1 is an exemplary view showing an example of a key input unit provided with a channel selection apparatus according to the prior art.

First, the first method of selecting a channel according to the prior art is selected by directly inputting the number of a broadcast reception channel to be received using the numeric keys 20 provided in the key input unit 100 such as a recocon and a key panel. That's how.

Another method is to sequentially search all channels received from a television, store only a broadcast reception channel having a received signal higher than a predetermined signal level, and then use the direction key 30 provided in the key input unit 100. Up / down by one channel.

However, in the first case described above, the information on the desired broadcast reception channel should be known, but when the number of broadcast reception channels such as cable television is large, it is difficult to memorize information on each broadcast reception channel one by one.

In addition, in the second case described above, if the desired broadcast reception channel is in a position adjacent to the current channel, there is no problem. However, when the channel interval with the current channel is large, up to down one by one to select the desired broadcast reception channel. There is a problem that takes time.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to adopt a multi-stage rotary channel selection device corresponding to each digit of the decimal number so as to easily select a desired broadcast reception channel. The present invention provides a channel selecting device for a television.

In order to achieve the above object, according to the present invention, in a television channel selecting apparatus comprising a plurality of broadcast receiving channels and tuning a desired channel by a numeric key and a direction key, a multi-stage corresponding to each digit of the decimal number. A key input section comprising rotary keys for selecting the channels corresponding to the stages; A storage unit for storing channel change information corresponding to a key operation of the rotary key and tuning data for tuning a channel; The channel change control signal is fetched from the storage unit corresponding to the combination of numbers set by the rotary keys of the multi-stage, and the channel change control signal is changed to a desired channel based on the channel change information extracted from the storage unit. Generating system control unit; According to the channel change control signal of the system control unit, there is provided a channel channel selection apparatus for a television further comprising a channel change unit for changing the currently set channel to a predetermined other channel.

1 is an exemplary view showing an example of a key input unit provided with a channel selection device according to the prior art;

2 is an exemplary view showing a key input unit having a rotary channel selection device according to a preferred embodiment of the present invention;

3 is a block diagram illustrating a channel tuning apparatus using a rotary channel selection apparatus according to a preferred embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

100: key input unit 10: power key

20: number keys 30: direction keys

40: rotary key 42: rotary once

44: 10-speed rotary 200: system control

300: storage unit 400: channel conversion unit

500: motor drive unit 600: rotary motor

Advantages and other objects and advantages of the present invention will be more clearly understood by the following description with reference to the attached FIGS. 2 and 3.

2 is an exemplary view showing a key input unit having a rotary key according to a preferred embodiment of the present invention, and FIG. 3 is a block diagram showing a channel tuning apparatus using a rotary key according to a preferred embodiment of the present invention. .

First, referring to FIG. 3, the channel tuning apparatus according to the preferred embodiment of the present invention includes a key input unit 100, a system control unit 200, a storage unit 300, a channel change unit 400, and a motor driver 500. , Consisting of a rotary motor 600, referring to Figure 2, the key input unit 100 according to the present invention is a power key 10, a numeric key 20, a direction key 30, a rotary key 40 The function of each structural member will be described below.

First, referring to FIG. 2, a key input unit 100 having a rotary key 40 according to an exemplary embodiment of the present invention will be described.

The key input unit 100 includes a plurality of function keys, such as a power key 10, a numeric key 20, a direction key 30, and a rotary key 40, and a key signal corresponding to a user's key operation. By controlling the television as desired by the user by providing the generated key signal to the system controller 200, the remote control and the television having the above-mentioned functions at a distance separated by a predetermined distance from the television. This includes a key panel attached to a predetermined portion to perform the above-described function.

Referring to FIG. 2, first, the power key 10 performs a function of turning on / off a television by a user's key manipulation.

Next, the numeric key 20 and the direction key 30 are a kind of selection key for generating a key signal corresponding to the user's key operation and selecting a desired broadcast reception channel.

Next, the rotary key 40 is composed of a rotary 42 and the tenth rotary 44, each of which performs the following functions. At this time, in the preferred embodiment of the present invention, for the sake of understanding of the present invention, a rotary key 40 having two stages of the rotary 42 and the tenth rotary 44 is described as an example. In response to the number of channels, the sandalwood rotary, the heavenly rotary (not shown) are used. Etc., it is possible to increase the number of stages.

First, assuming that the broadcast reception channel through which a broadcast signal is received is within the range of 1 to 99, the tenth round rotary 44 sets the number of digits of each ten to 0, 10, 20, 30. The rotary 42 once represents the number of digits of work corresponding to the tens of digits of the tenth rotary 44.

That is, when the tenth rotary 44 is selected to 10, the rotary 42 is provided with 0, 1, 2, 3... Are respectively 10, 11, 12, 13... The number of digits to add to.

In this case, as shown in FIG. 2, it is preferable that a mark having a predetermined shape is formed at a point around the rotary key 40 as a reference point for channel selection by the rotary key.

On the other hand, the system control unit 200 shown in FIG. 2 controls the overall operation of the television in response to the key signal provided from the key input unit 100, in particular, corresponding to the numeric key signal generated from the key input unit 100 The channel changing unit 400 is controlled to retrieve the channel information from the storage unit 300, and changes the current channel to a channel corresponding to the channel information retrieved from the storage unit 300, and stores information about the current channel. Control to store in the unit 300. In this case, the changed broadcast reception channel may be a channel through which a broadcast signal is not received.

Meanwhile, the system controller 200 searches for the channel information corresponding to the direction key signal provided from the key input unit 100 from the storage unit 300, and corresponds to the channel information retrieved from the storage unit 300 for the current channel. While controlling the channel changing unit 400 to change to a channel, it controls to store the information about the current channel in the storage unit 300. In this case, the broadcast reception channel may be any one of channels that initially search the entire broadcast reception channel and store a channel in which the broadcast signal having a predetermined signal level or more is detected in the storage unit 300.

As described above, when the desired channel is tuned using the numeric key 20 or the direction key 30 provided in the key input unit 100, the system controller 20 uses the numeric key 20 or the direction key ( Drive control of the motor driving unit 500 to rotate the rotary key 40 to correspond to the channel selected by the 30. At this time, by rotating the rotary key 40 corresponding to the channel selected by the numeric key 20 or the direction key 30, the channel selection signal and the rotary key by the numeric key 20 or the direction key 30. It is possible to prevent an error in channel selection caused by the channel selection signals by 40 being different from each other.

In addition, the system controller 200 combines the tens of digits selected by the tenth rotary 44 of the rotary key 40 and the ones of the digits selected by the rotary 42 once, and operates the rotary key 40 through operation. Recognizing a channel selected by the user, searching for tuning data corresponding to the recognized channel from the storage unit 300, and using the tuning data retrieved from the storage unit 300 to change the current channel to a predetermined channel selected by the user. The channel changing unit 400 is controlled.

The storage unit 300 may have predetermined information described below, or information that changes during use of the television.

As for the information stored in the storage unit 300, first, preset channel data corresponding to each channel number is preset and stored. In addition, the number information corresponding to the position of the tenth rotary 44 and the rotary 42 of the rotary key 40 based on a mark is preset and stored, and the rotary keys corresponding to the respective channel numbers are stored. The position information of the tenth rotary 44 and the rotary 42 of the 40 is preset and stored.

In addition, the information on the previous channel set at the time of power off (Off), the information on the previous channel set before the channel change, etc. will be changed and stored every time.

The channel changer 400 includes a tuner (not shown), a PLL (Phase Locked Loop, not shown), and the like, and is controlled by the system controller 200 and retrieved from the storage 300. The channel is changed to receive a broadcast signal through a channel based on predetermined channel data.

Hereinafter, a preferred embodiment according to the present invention will be described with respect to a process of tuning a desired predetermined channel using a channel tuning apparatus that performs the above-described function.

First, when a user manipulates a power key 10 provided in the key input unit 100 to watch a predetermined broadcast through a television, the key input unit 100 is a power on key for applying power to the television. A signal is generated and the generated power on key signal is provided to the system controller 200. At this time, when the power key 10 is operated, the power on key signal will be generated in the power off state, and the power off key signal will be generated in the power on state.

The system control unit 200 which receives the power-on key signal from the key input unit 100 controls the power supply unit (not shown) to apply power to the television, and under the control of the system control unit 200, the power supply unit controls the television. The power will be turned on by supplying power to each of the constituent members. In this case, since the power is always applied to the system controller 200, a predetermined key signal may be provided from the key input unit 100 even in the power off state.

When the television is turned on, the system controller 200 searches for the previous channel information in the storage 300 and controls the channel changer 400 to receive a broadcast signal based on the retrieved previous channel information. In this case, the previous channel information may be predetermined channel data.

Under the control of the system controller 200, the channel changer 400 sets a predetermined channel based on channel selection data corresponding to previous channel information, and receives a broadcast signal through a channel set by the channel changer 400. When received, the received broadcast signal will be displayed on a monitor (not shown) through a predetermined signal processing process.

Subsequently, in order to set another channel while watching the broadcast displayed on the monitor, the user manipulates the numeric key 20, the direction key 30, the rotary key 40, etc. included in the key input unit 100, and the predetermined channel. You will be able to choose.

At this time, the user can quickly and easily select the desired channel as follows using the rotary key 40 according to the preferred embodiment of the present invention.

First, the user rotates the rotary 42 once in the state where the tenth rotary 44 of the rotary key 40 is set to a predetermined number.

For example, if the tenth rotary 44 is currently set to 10, and once the rotary 42 is set to 3, when the rotary is rotated once by the user's operation, the channel is 13 → 14 → 15 → 16 →. 17 → 18 → 19 → 10 → 11 → 12 → 13... Will be chosen.

The key input unit 100 generates a rotary key signal corresponding to a user's manipulation of the rotary key 40, and provides the generated rotary key signal to the system controller 200.

The system controller 200 receiving the rotary key signal from the key input unit 100 retrieves channel information corresponding to the rotary key signal from the storage unit 300 and changes the current channel to correspond to the retrieved channel information. The control unit 400 controls the channel changing unit 400 to change the channel in response to the change of the rotary key signal under the control of the system control unit 200.

According to the channel change of the channel changer 400, the monitor (not shown) will display the broadcast signal received through each changed channel through a predetermined signal processing, and the user may select 13 → 14 → 15 → 16. ? 17? 18? 19? 10? 11? 12? As described above, it may be possible to confirm whether a desired broadcast reception channel is desired by viewing a predetermined screen by a broadcast signal received on the changed channel.

The monitor confirms that the image of the channel that is sequentially changed is displayed. If there is no desired channel, the user sets the tenth roundabout to the next number again and repeats the above-described process. For example, if the channel of the tenth rotary is changed to 20, the monitor performs 23 → 24 → 25 → 26 → 27 → 28 → 29 → 20 → 21 → 22 → 23. As the channel is changed as shown, an image corresponding to the changed channel is displayed.

While repeating the above process, there is a desired channel, and the user will be able to select the desired channel by stopping the operation of the rotary key 40.

Therefore, using the channel selection apparatus for television according to the present invention, the user sets the tenth rotary 44 provided in the rotary key 40, and then operates the rotary 42 once, continuously for each tenth unit. By changing and searching channels, it is possible to select a desired channel more easily and quickly.

Claims (2)

A channel tuning apparatus for television, which has a plurality of broadcast reception channels and tunes a desired channel by a numeric key and a direction key, A key input unit comprising a rotary key for selecting the channel corresponding to each stage, the multi-stage corresponding to each digit of the decimal number; A storage unit for storing channel change information corresponding to a key operation of the rotary key and tuning data for tuning a channel; The channel change control signal is fetched from the storage unit corresponding to the combination of numbers set by the rotary keys of the multi-stage, and the channel change control signal is changed to a desired channel based on the channel change information extracted from the storage unit. Generating system control unit; And a channel changer for changing the currently set channel to a predetermined other channel based on the channel change control signal of the system controller. The channel selecting apparatus of claim 1, wherein A rotary motor for rotating the rotary key; A motor driver for driving the rotary motor; And a system control unit for controlling the motor driving unit to rotate the rotary key corresponding to the tuned channel when the channel is tuned by the numeric key and the direction key.