CN1127966A - TV program prestorage tune changer - Google Patents
TV program prestorage tune changer Download PDFInfo
- Publication number
- CN1127966A CN1127966A CN 95100158 CN95100158A CN1127966A CN 1127966 A CN1127966 A CN 1127966A CN 95100158 CN95100158 CN 95100158 CN 95100158 A CN95100158 A CN 95100158A CN 1127966 A CN1127966 A CN 1127966A
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- China
- Prior art keywords
- program
- prestorage
- tune
- television set
- changer
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Abstract
The device for storing TV programmes to be watched, their channels and broadcast time in advance and automatically switching to desired channel on time for watching features that the programmes schedulded in a week to one month may be stored in advance. The switching device may be independent from controlled TV set or directly installed in it.
Description
The present invention is a kind of device that is used for television set, can carries out preliminary election, storage and automatically switching channel to TV programme.
At present,, in the city, can receive the TV programme (comprising cable TV station) of ten above channels usually because television channel is many, thus quite bothersome in the selection of program.And the broadcast of TV programme is an intersexuality sometimes, is difficult to usually after having broadcast replay, owing to be not able to do in time when televiewing or forgotten converted channel, has missed and oneself has wanted see very much program, feels unfortunate deeply.
The purpose of this invention is to provide so a kind of device, it can and broadcast constantly the channel code name of your the required program of watching (day, time, branch) stores in advance, usually can store the program in month in a week, once can deposit more than 30, and not be afraid of power down.Constantly one arrive, on the program that it just can be automatically will be watched channel switch to you.
A series of automatic control process of the present invention all is that depended software is realized, its software mainly is made up of two systems.One is travel time system, is unit with the second, advances to divide in full 60 seconds, and full 60 minutes reach at 24 o'clock and advance day when advancing, and (month big, month little automatic selecting) advances the moon to reach 30 or 31.Constitute tight second → minute → real-time system of time → day → moon.This system is managed by interruption, has the priority treatment function, and timekeeping performance is very high.
Another is keyboard, demonstration, search system.Because of interrupt procedure is exceedingly fast, only in a flash, so the overwhelming majority time is to move in keyboard, demonstration, search.When charactron shows actual walk at ordinary times, owing to have only four charactrons, so when only showing usually, branch.This system constantly monitors keyboard in when operation, sees if there is key and presses, if any, then handle accordingly, or when inserting away, or deposit program in.The search of every one minute of this system once, day during with actual walk, the time, branch with all deposit in program day, the time, branch compares one by one, all do not wait, still return in keyboard, the demonstration and move.As equating that with the moment of certain program this moment that shows the program that prestores arrives, the channel code name taking-up with this program is automatically converted to corresponding code, is launched by infrared emission tube after modulating.Because this code is corresponding one by one with code on the TV remote controller, thus by the reception of the infrared receiver of television set after the distant control function disposable plates is handled, program is transformed on the channel that prestores.Afterwards, program is got back to again and is continued operation under original state.
The present invention has no effect to all properties (comprising image, sound and various function) of former television set, and TV remote controller is shone with not missing.
Implement the solution of the present invention and have two kinds: split type and integral type describes respectively below.
Split type: it is characterized in that, TV program prestorage tune changer (being called for short pre-storage, as follows) with contacted directly by TV set controlled nothing, and independent separately.During use, it need only be placed on before the television set just, former television set must not done any change.
Fig. 1 is an electrical schematic diagram of implementing split type scheme.It is with single-chip microcomputer IC
1The treatment system of band keyboard, demonstration and the infrared ray transmitting function that constitutes for core.IC
1P
0Mouth (P
0. 0-P
0.7Pin), adopts time sharing mode, by ale signal control, preceding half cycle time P
0Low eight of mouthful OPADD bus are by address latch IC
2After latching, export program storage sheet IC to
3Low eight (A of address
0-A
7).IC
1P
2Mouth (P
2.0-P
2.7) high eight-bit (P of OPADD bus
2Mouth latchs voluntarily) to IC
3The high eight-bit of address (herein only with 5, P
2.0-P
2.4).The second half time, P
0Mouth is made the data bus and is used, and is coupled to IC
3Data port (D
0-D
7) carry out instruction fetch, hold the operation of instruction.PSEN is program storage sheet IC
3Gating signal.
IC
1P
1P in mouthful
1.0-P
1.6Pin is exported as charactron LED font, and by triode T
1-T
7The driving charactron is luminous.This pre-storage adopts group of four figures pipe, to reduce volume and to reduce cost.And actual data have eight, during as actual walk are: month (two), day (two), the time (two), divide (two).As deposit program in and be: channel code name (two), day (two), the time (two), divide (two).When inserting away or when depositing program in, charactron adopts the method for twice demonstration, promptly shows month, day (or channel code name, day) for the first time, second time when showing, branch.In order to distinguish this twice demonstration, when showing for the second time sign (prompt) will appear.IC
1P
3The P of mouth
3.4-P
3.7The position selected control system signal that pin output charactron is required, and by seven inverter ics
4In the defeated conductance of four charactrons of four inverter drive logical, finish the scanning Presentation Function.
The dependence keyboard KEY that deposits in of the initial moment when this pre-storage is walked and program realizes.P
3The P of mouth
3.4-P
3.7The usefulness of the capable selection of while double as key, and P
3.0-P
3.2Pin is as the usefulness of key column selection, and both constitute the array of keyboard.Keyboard adopts 12 keys.0-9 is a numerical key, and A, B are function key.When pressing each key, IC
1Just can produce corresponding processing, if numerical key, then numeral can be deposited in the memory cell of some regulation with pending, and show this number (wouldn't show when walking) by charactron simultaneously.If function key then can produce corresponding processing.A is a key when walking, the initial moment in the time will walking: the moon, day, the time, branch totally eight key in successively by numerical key after, press the A key again, promptly when this begins to walk constantly.B is the program memory key, keys in earlier the channel code name of program successively by numerical key, day, the time, totally eight of branches, press the B key again, program deposits in.When recovering again after depositing in.
IC
5Be program storage sheet, it is a kind of EEPROM storage sheet of electrically rewritable, and it can and broadcast constantly by a keyboard entry again through IC the channel code name of program
1Deposit in after handling in the sheet, then take out and use, not drop-out has a power failure.P
1.0-P
1.2Pin (dual-purpose) and P
3The P of mouth
3.3Pin is finished IC
5The depositing in and taking out of information.
Arrive P when the moment one of the program that prestores
1The P of mouth
1.7Pin is just exported the channel switch control signal through ovennodulation, and this signal is corresponding to the code on the TV remote controller, and by IC
4Two inverter drive after, DH launches by infrared emission tube, is received and automatically switching channel by the infrared receiver of television set.
Split type advantage is that former television set need not be done any change, and pre-storage can be used as the auxiliary products of television set, also can be separately as a kind of product.
Integral type: it is characterized in that pre-storage directly installs in the television set, constitutes integrated.Fig. 2 is an electrical schematic diagram of implementing an aspect of the invention, and former television set need only have been changed several wiring just.With Fig. 1 relatively, the circuit of Fig. 2 comes simply, it has saved keyboard, finish the function of former keyboard with TV remote controller, and remote controller need not be done any change.The infrared signal that remote controller sends is received by the infrared receiver of television set, infrared receiver can share the infrared receiver of former television set, also can be independent, when adopting the former, an available K switch manages, and when throwing to a, remote controller disappears to the various controlled function of former television set, at this moment, the output signal of infrared receiver enters pre-storage (from the P of IC1
3.0Pin input), press the effect that key on the remote controller just can play keyboard KEY among Fig. 1, the ten key of the corresponding keyboard KEY of its 0-9 key, key A and program memory key B when the corresponding respectively keyboard of line unit is walked under line unit and the channel code name on its channel code name.Why can accomplish this point, it is the binary code that one group of correspondence is all arranged because of each button on the remote controller, when pressing certain key, just can launch this code with infrared mode, and this has the function of discerning this code in storage in advance, it can be corresponding 0-9 numeral with the code conversion of the 0-9 button of remote controller, key and program memory key when line unit is converted to away under line unit on the channel code name and the channel code name, and carry out its function.Therefore, just can finish when walking by remote controller and the processing of program storage.
Because pre-storage is contained in the television set, so saved the infrared process, the channel switch control signal of pre-storage output directly enters into the distant control function disposable plates of television set and handles, and reaches the purpose of automatically switching channel.
Other control procedures of integral type are with split type.
When K throws to b, original controlled function full recovery of remote controller.
Integral type can also adopt independent infrared receiver, and Fig. 3 is a schematic diagram of implementing this scheme.It is characterized in that the infrared receiver B of this infrared receiver A and former television set, embeds the frequency modulated light sheet C that can horizontally slip on the window with one and selects with being installed in the infrared ray receive window of television set by horizontal direction.When blocking infrared receiver B, when remote controller is done input and walked and the usefulness of storage program; When blocking infrared receiver A, recover the original function of remote controller.The advantage of this scheme is that the wiring in the former television set can be motionless, need only connect several threads just in addition.
The advantage of integral type is to be integrated with television set, and is easy to use.Because television set has increased a kind of new function, has just improved the class and the market competitiveness of television set virtually.
Certainly, when split type among Fig. 1 also can adopt remote controller to come substituting for key KEY to import away and the storage program, the same integral type of principle and method, but split typely must be equipped with independent infrared receiver.And the channel switch control signal of its output still must adopt infrared mode to send.
Pre-storage is by little AC rectification stabilized voltage power supply (about a 2W) power supply, and necessary long-term energized continued when making away when pre-storage used.For integral type, and the inlet wire of this power supply (～220V) power line of television set altogether, it is connected on before the TV set power switch, and attaching plug is plugged the back with regard to energized (generally no longer pulling up), and the break-make of TV set power still must be controlled by mains switch.As power failure, can stop when walking, but program is not lost.When sending a telegram here, the prompt of flicker appears in charactron again, and reminds people is inserted the time again.Can certainly adopt four joint nickel-cadmium cells to make stand-by power supply, at ordinary times by rectifier power source to the nickel-cadmium cell floating charge, during power failure, by nickel-cadmium cell power supply, but charactron do not work, with electrical energy saving.
IC1 in this pre-storage adopts the MCS-51 single-chip microcomputer, also can be with the single-chip microcomputer and the microprocessor of other models.MCS-51 has two kinds of chips, and their instruction, function, size, pin are all identical, and main difference is whether to have memory under program in the sheet.A kind of is 8031 (80C31), and no memory under program in the sheet is so need external address latch sheet IC2 and program storage sheet IC3.Another kind of 8751 (87C51) or 8051 (80C51) have sheet internal program memory, so IC2, IC3 can dispense, peripheral circuit is simpler, but chip price is higher.Adopt the former among Fig. 1, adopted the latter among Fig. 2.Can exchange fully.
Program storage sheet IC5 is an EEPROM storage sheet of adopting serial or parallel electrically rewritable.
Claims (8)
1. TV program prestorage tune changer that is used on the television set, it is mainly by single-chip microcomputer IC
1, address latch sheet IC
2, program storage sheet IC
3, display driver sheet IC
4, program storage sheet IC
5, keyboard KEY, infrared emission tube DH constitute, its principal character is: it can be with the channel code name and the broadcast storage in advance constantly of TV programme, and compare with the actual travel time system of its inside at any time, prestore moment one of program arrives, and just automatically is transformed on the channel of this program.
2. according to the TV program prestorage tune changer described in the claim 1, it has two kinds of constituted modes, it is characterized in that: it and controlled television set are independent separately, formation is split type, and it directly is encased in the television set, the formation integral type.
3. according to the TV program prestorage tune changer described in claim 1 and the claim 2, its split type feature is: with the storage program, the channel switch control signal of its output is to handle, carry out automatically the conversion of channel after receiving by infrared emission tube DH emission and by the infrared receiver of television set when adopting keyboard KEY to import away.
4. according to the TV program prestorage tune changer described in claim 1 and the claim 2, the feature of its integral type is: when importing away with the TV remote controller substituting for key and the storage program, the infrared signal that remote controller sends enters TV program prestorage tune changer after being received by the infrared receiver of television set, the channel switch control signal of its output directly enters the distant control function disposable plates, carries out channel switch automatically.
5. integral type TV program prestorage tune changer according to claim 4, it is characterized in that: infrared receiver can share the infrared receiver of former television set, manage with a K switch, throw when a position, remote controller is used for input when walking and the storage program, throw when the b position, recover whole distant control functions of former television set.
6. integral type TV program prestorage tune changer according to claim 4, it is characterized in that: can use independent infrared receiver, this infrared receiver A can with the infrared receiver B of former television set with horizontal direction and be loaded in the infrared ray receive window of television set, with one embed on the window can move left and right frequency modulated light sheet C select, when shelves live in the latter, remote controller is used for input when walking and the storage program, when shelves are lived the former, and the full recovery of former TV remote-control function.
7. split type TV program prestorage tune changer according to claim 3 is characterized in that: in the time of also can coming substituting for key KEY to import away with remote controller and the storage program, but this TV program prestorage tune changer must install infrared receiver additional.
8. TV program prestorage tune changer according to claim 1 is characterized in that: single-chip microcomputer IC
1Be MCS-51 or other types single-chip microcomputer or microprocessor, program storage sheet IC
5What adopt is the EEPROM storage sheet of serial or parallel electrically rewritable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95100158 CN1127966A (en) | 1995-01-24 | 1995-01-24 | TV program prestorage tune changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95100158 CN1127966A (en) | 1995-01-24 | 1995-01-24 | TV program prestorage tune changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1127966A true CN1127966A (en) | 1996-07-31 |
Family
ID=5073282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95100158 Pending CN1127966A (en) | 1995-01-24 | 1995-01-24 | TV program prestorage tune changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1127966A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7227583B2 (en) | 2002-12-11 | 2007-06-05 | Lg Electronics Inc. | Digital TV method for switching channel automatically |
-
1995
- 1995-01-24 CN CN 95100158 patent/CN1127966A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7227583B2 (en) | 2002-12-11 | 2007-06-05 | Lg Electronics Inc. | Digital TV method for switching channel automatically |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |