JPH0230610B2 - - Google Patents

Info

Publication number
JPH0230610B2
JPH0230610B2 JP57055207A JP5520782A JPH0230610B2 JP H0230610 B2 JPH0230610 B2 JP H0230610B2 JP 57055207 A JP57055207 A JP 57055207A JP 5520782 A JP5520782 A JP 5520782A JP H0230610 B2 JPH0230610 B2 JP H0230610B2
Authority
JP
Japan
Prior art keywords
memory
input operation
channel
channel selection
special
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP57055207A
Other languages
Japanese (ja)
Other versions
JPS58172011A (en
Inventor
Retsu Okamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to JP57055207A priority Critical patent/JPS58172011A/en
Publication of JPS58172011A publication Critical patent/JPS58172011A/en
Publication of JPH0230610B2 publication Critical patent/JPH0230610B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0254—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter
    • H03J5/0263—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter the digital values being held in an auxiliary non erasable memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Description

【発明の詳細な説明】 本発明はテレビジヨン受像機の選局装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a channel selection device for a television receiver.

最近の米国におけるCATV（ケーブルテレビジ
ヨン）システムの発達には目覚しいものがあり、
その送出チヤンネル数は日ごとに増加する方向に
ある。これにより多数のチヤンネルから適宜選局
すれば、一台のテレビジヨン受像機にて多種多様
の特色ある番組を受像することが可能となる。 The recent development of the CATV (cable television) system in the United States is remarkable.
The number of transmission channels is increasing day by day. This makes it possible to receive a wide variety of distinctive programs on a single television receiver by appropriately selecting from a large number of channels.

ところが反面、これらチヤンネルの中には親と
して子供に見せたくないような番組を売物にして
いるものも増え、小さい子供のある家庭等ではこ
のようなチヤンネル数の増加は喜ぶことができな
かつた。 However, on the other hand, an increasing number of these channels featured programs that parents would not want their children to watch, and families with small children were not happy about this increase in the number of channels. .

本発明はこのような点に鑑みなされたものであ
り、特定のチヤンネルについては通常の選局操作
では選局することができない特殊な選局装置を提
供するものである。 The present invention has been made in view of these points, and provides a special channel selection device that cannot be used to select a specific channel using normal channel selection operations.

以下図面に示す実施例とともに本発明を説明す
る。図面は本発明の１実施例を示すものであり、
ここで１は選局情報や同調電圧情報を入力する第
１の入力操作部、２はこの操作部１より入力され
た選局情報を表示する表示装置、３は複数個の同
調電圧情報をデイジタル化した内容で個々に記憶
する第１のメモリ、４は入力操作部１より入力さ
れた情報に基いて各部の動作を制御するコントロ
ーラ、５はメモリ３より読み出された同調電圧情
報をアナログの同調電圧に変換するDA変換器、
６はチユーナであり、これらによつて通常一般の
選局装置が構成されている。 The present invention will be described below with reference to embodiments shown in the drawings. The drawings show one embodiment of the invention,
Here, 1 is a first input operation unit for inputting tuning information and tuning voltage information, 2 is a display device for displaying tuning information input from this operation unit 1, and 3 is a digital display device for displaying a plurality of pieces of tuning voltage information. 4 is a controller that controls the operation of each part based on the information inputted from the input operation section 1; 5 is a controller that stores the tuned voltage information read from the memory 3 in an analog form DA converter that converts to tuning voltage,
6 is a tuner, which usually constitutes a general channel selection device.

このような選局装置の選局動作は周知である
が、ここで簡単に説明しておくと、まず入力操作
部１において所望とするチヤンネルの選局キーを
オン操作すれば、このときコントローラ４からの
情報に基いてそのチヤンネルに対応する番号が表
示されるとともにメモリ３に予め記憶されている
そのチヤンネルに対応する同調電圧情報が読み出
され、これがDA変換器５にて同調電圧に変換さ
れたのちチユーナ６の同調電圧供給端子VTに印
加され、こうしてチユーナ６において所望とする
チヤンネルが選局受信される。 The channel selection operation of such a channel selection device is well known, but to briefly explain it here, first, turn on the channel selection key of the desired channel on the input operation section 1, then the controller 4 Based on the information from the channel, the number corresponding to that channel is displayed, and the tuning voltage information corresponding to that channel stored in advance in the memory 3 is read out, and this is converted into a tuning voltage by the DA converter 5. Thereafter, it is applied to the tuning voltage supply terminal V T of the tuner 6, and the tuner 6 selects and receives the desired channel.

なおここで、入力操作部１のプリセツトキー及
び選局キーを操作することによつてメモリ３の各
アドレスに各チヤンネルに対応する同調電圧情報
をデイジタル化して予め記憶させることができ
る。 Here, by operating the preset key and the channel selection key of the input operation section 1, the tuning voltage information corresponding to each channel can be digitized and stored in advance at each address in the memory 3.

本発明では上記のような選局装置にさらに第２
の入力操作部７と第２のメモリ８とメモリ選択回
路９を加えて構成したものである。即ちここでは
第２の入力操作部７の各キーを操作して予め第２
のメモリ８に通常一般には視聴することのない特
定のチヤンネルに対応する同調電圧情報を記憶さ
せておくものとする。 In the present invention, the above-mentioned channel selection device further includes a second channel selection device.
It is constructed by adding an input operation section 7, a second memory 8, and a memory selection circuit 9. That is, here, each key of the second input operation section 7 is operated to enter the second input operation section in advance.
It is assumed that tuning voltage information corresponding to a specific channel that is not normally viewed is stored in the memory 8 of the user.

そして第１の入力操作部１による通常の選局操
作ではメモリ選択回路９からの指令により第１の
メモリ３からの読出し動作を優先的に行なわせ、
第２のメモリ８からの読出し動作は一切行なわせ
ないものとする。 In the normal channel selection operation by the first input operation section 1, the reading operation from the first memory 3 is performed with priority according to a command from the memory selection circuit 9,
It is assumed that no read operation from the second memory 8 is performed.

従つてこの場合第１の入力操作部１において選
局キーをオン操作しただけでは、予め第１のメモ
リ３に記憶されているチヤンネルの同調電圧情報
しか読み出すことができず、予め第２のメモリ８
に記憶されている特殊なチヤンネルの同調電圧情
報を読み出すことはできない。 Therefore, in this case, by simply turning on the channel selection key in the first input operation section 1, only the channel tuning voltage information stored in the first memory 3 can be read out. 8
It is not possible to read the tuning voltage information of a special channel stored in the .

そしてこの特殊なチヤンネルの同調電圧情報を
読み出す場合には２つの入力操作部１，７を組合
わせた特殊な操作をしたときのみメモリ選択回路
９の指定が第１のメモリ３から第２のメモリ８に
切換わり、このとき第２のメモリ８から同調電圧
情報が読み出され、これがDA変換器５を介して
チユーナ６に供給され、このとき初めて特定のチ
ヤンネルが選局受信される。 In order to read out the tuning voltage information of this special channel, only when a special operation is performed by combining the two input operation units 1 and 7, the memory selection circuit 9 changes from the first memory 3 to the second memory. At this time, the tuning voltage information is read from the second memory 8 and is supplied to the tuner 6 via the DA converter 5, and at this time, a specific channel is selected and received for the first time.

なおここで上記第２の入力操作部７を第１の入
力操作部１とは分離し、第１の入力操作部１のみ
を受像機の前面に配置し、第２の入力操作部７は
隠れた場所に設置すれば一層有効であろう。 Note that the second input operation section 7 is separated from the first input operation section 1, and only the first input operation section 1 is placed in front of the receiver, and the second input operation section 7 is hidden. It would be even more effective if installed in a suitable location.

本発明のテレビジヨン受像機の選局装置によれ
ば、上記のように２つの入力操作部と２つのメモ
リとメモリ選択回路を有し、通常時視聴する一般
的なチヤンネルの情報を第１のメモリに記憶さ
せ、例えば子供の視聴に適しない番組を放送して
いる特殊なチヤンネルの情報は第２のメモリに記
憶させており、２つの入力操作部の操作を組合わ
せた特殊な操作をした時のみ第１のメモリから第
２のメモリに選択的に動作が切換えられ特殊なチ
ヤンネルを選局することができるよう構成されて
いるので、そのような特殊な操作を認識していな
い子供は特殊なチヤンネルを選局することができ
ず、親として視聴させたくない特殊なチヤンネル
の番組を子供が見るのを、放送局側に連絡するこ
となくテレビジヨン受像機側の操作のみで確実に
防止することができ、子供をもつ親にとつて非常
に有用であり、CATVシステムのように常に特
色のある番組を送出しているチヤンネルを受信す
るさいの選局装置として特に好適となる。 According to the channel selection device for a television receiver of the present invention, as described above, it has two input operation units, two memories, and a memory selection circuit, and the information on the general channel normally viewed is stored in the first channel. For example, information about special channels broadcasting programs not suitable for children is stored in a second memory, and a special operation that combines the operations of two input operation sections is performed. Since the device is configured so that the operation can be selectively switched from the first memory to the second memory only at the time of operation and a special channel can be selected, children who are not aware of such special operations may To reliably prevent children from watching programs on special channels that their parents do not want them to watch, simply by operating the television receiver without contacting the broadcasting station. This is very useful for parents with children, and is particularly suitable as a channel selection device when receiving channels that always broadcast distinctive programs, such as CATV systems.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の１実施例のブロツク線図であ
る。 １…第１の入力操作部、３…第１のメモリ、７
…第２の入力操作部、８…第２のメモリ、９…メ
モリ選択回路。 The drawing is a block diagram of one embodiment of the invention. 1...First input operation section, 3...First memory, 7
...Second input operation unit, 8...Second memory, 9...Memory selection circuit.

Claims (1)

【特許請求の範囲】[Claims] １ 一般的なチヤンネルの選局操作を行なうこと
のできる第１の入力操作部と、前記一般的なチヤ
ンネルに対応する情報を個々に記憶する第１のメ
モリを有するテレビジヨン受像機の選局装置にお
いて、前記第１の入力操作部の操作と組合わせて
特殊なチヤンネルの選局操作を行なうことができ
る第２の入力操作部と、前記特殊なチヤンネルに
対応する情報を記憶する第２のメモリと、前記第
１の入力操作部の操作と前記第２の入力操作部の
操作を組合わせた特殊な操作に呼応して第１のメ
モリから第２のメモリに選択的に動作を切換える
メモリ選択回路とを具備してなり、前記第１の入
力操作部の操作と前記第２の入力操作部の操作を
組合わせた特殊な操作によつてのみ前記特殊なチ
ヤンネルの選局動作を行なえるようにしたことを
特徴とする選局装置。1. A channel selection device for a television receiver, comprising a first input operation unit capable of performing a general channel selection operation, and a first memory that individually stores information corresponding to the general channel. a second input operation section that can perform a special channel selection operation in combination with the operation of the first input operation section; and a second memory that stores information corresponding to the special channel. and a memory selection for selectively switching the operation from the first memory to the second memory in response to a special operation that combines the operation of the first input operation section and the operation of the second input operation section. circuit, so that the special channel selection operation can be performed only by a special operation that combines the operation of the first input operation section and the operation of the second input operation section. A channel selection device characterized by:
JP57055207A 1982-04-01 1982-04-01 Channel selector Granted JPS58172011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57055207A JPS58172011A (en) 1982-04-01 1982-04-01 Channel selector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57055207A JPS58172011A (en) 1982-04-01 1982-04-01 Channel selector

Publications (2)

Publication Number Publication Date
JPS58172011A JPS58172011A (en) 1983-10-08
JPH0230610B2 true JPH0230610B2 (en) 1990-07-09

Family

ID=12992201

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57055207A Granted JPS58172011A (en) 1982-04-01 1982-04-01 Channel selector

Country Status (1)

Country Link
JP (1) JPS58172011A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61232463A (en) * 1985-04-08 1986-10-16 Canon Inc Photoreceptor
US4792972A (en) * 1986-08-19 1988-12-20 Scientific-Atlanta, Inc. Remote programming of CATV channel authorization unit
JP2844593B2 (en) * 1987-05-28 1999-01-06 ソニー株式会社 Receiver
US5045947A (en) * 1989-05-31 1991-09-03 Jack Beery Television receiver having memory control for tune-by-label feature
JPH0461510A (en) * 1990-06-29 1992-02-27 Matsushita Electric Ind Co Ltd Channel selection device
US5963269A (en) * 1995-06-07 1999-10-05 Beery; Jack Apparatus for controlling a television receiver using a plurality of stored labels

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132939A (en) * 1977-04-25 1978-11-20 Matsushita Electric Ind Co Ltd Wire television viewing method
JPS5640375A (en) * 1979-09-11 1981-04-16 Clarion Co Ltd Pay television broadcast system
JPS5645228U (en) * 1979-09-17 1981-04-23

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132939A (en) * 1977-04-25 1978-11-20 Matsushita Electric Ind Co Ltd Wire television viewing method
JPS5640375A (en) * 1979-09-11 1981-04-16 Clarion Co Ltd Pay television broadcast system
JPS5645228U (en) * 1979-09-17 1981-04-23

Also Published As

Publication number Publication date
JPS58172011A (en) 1983-10-08

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