CN1081423C - Colour TV set with timed cue function - Google Patents
Colour TV set with timed cue function Download PDFInfo
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- CN1081423C CN1081423C CN98107193A CN98107193A CN1081423C CN 1081423 C CN1081423 C CN 1081423C CN 98107193 A CN98107193 A CN 98107193A CN 98107193 A CN98107193 A CN 98107193A CN 1081423 C CN1081423 C CN 1081423C
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Abstract
The present invention relates to a television with the function of timing prompting. On the basis of the original functions of a television, circuits or components with the function of the timing prompting of audio signal processing and video signal processing are connected between a central processing unit (101), a video decoder (103), an audio power amplifier (104), a remote controller, picture tubes and a loudspeaker. Through the control software of an audio and video signal processing system of the central processing unit (101), which is used for the function of timing prompting, the function of prompting a television user for the proceeding of a certain specific event in the timing mode is realized; the timing time can be preset by the user, and the prompting mode can be realized through sounds or graphic symbols displayed on a screen in the flash mode. The present invention has the advantages of easy realization and convenient operation.
Description
The present invention relates to the color television set system, specifically refer to a kind of television set with timed cue function.
In daily life, normally when watching TV programme, need the incident of processing in time cook rice, boil water etc. again, because TV programme is interesting tempting, thereby people often by program attracted to forget in advance carry out boil milk, incident such as boil water, cause adverse consequences to generate; Always worry at heart perhaps thereby whether milk, boiling water have opened the development that can not be absorbed in the TV story of a play or opera.The device that can regularly point out the user of existing in the market alarm clock, timing warner and so on, but these devices need extra fund input, use inconvenience simultaneously.Can in television set, increase a kind of function setting so, not only be convenient to operate, but also can in time point out a certain particular event of spectators before the video screen to finish.
The objective of the invention is to provides a kind of television set with timed cue function for TV user.
The present invention relates to the color television set system, specifically refer to a kind of television set with timed cue function.It can remind a certain particular event of the user who watches TV to finish on time.Timing can be preestablished by the user, and prompting mode can be the graphic symbol of flicker demonstration on auditory tone cues or the screen.
The present invention realizes according to such principle: on the basis of ordinary color tv set, increase or modification part Control Software, increase part control circuit and corresponding components and parts.
The object of the present invention is achieved like this:
A kind of television set with timed cue function, contain central processing unit (CPU), Video Decoder, audio-frequency power amplifier, remote controller, picture tube, loud speaker etc., between central processing unit (CPU), Video Decoder, audio-frequency power amplifier, be connected with the circuit or the corresponding components and parts that have timing prompt tone vision signal processing capacity; The present invention also contains the audio-video signal treatment system Control Software that a cover is used to realize timed cue function.
Push " prompting " key that utilizes software specific on the remote controller as the user, when sending call instruction, the instruction after the infrared remote receiver demodulation of central processing unit (CPU) decoding input, red, green, the blue three primary colors pulse signal of the on-screen menu that need are shown respectively through every directly/clamped electric capacity sends into Video Decoder.The pulse of the quickly-blanking of central processing unit (CPU) output simultaneously is to Video Decoder.There is a high speed electronic switch Video Decoder inside, under the control of the quickly-blanking pulse of importing, the screen character tristimulus signals of input are inserted in the three primary colors pulse signal of television image, and output to the kinescope driver amplification, amplify the rear drive picture tube and show.Pushing volume before not disappearing at the prompting menu adds/subtracts key and carry out timing prompt time, the setting of " sound " switch." sound " option in the prompting menu can be set to " opening " or " pass " by the user, if be set to " pass ", then prompt time then only has prompting symbol screen display and the voiceless sound prompting.
The prompting timing that is provided with as the user then, the primary colours pulse of the prompting symbol also high speed electronic switch by Video Decoder inside inserts that output shows in the image-based chrominance signal; Simultaneously, central processing unit (CPU) output high level drives the voice-grade channel switching circuit and opens, thereby with a TV left side/right channel audio signal passage short circuit of importing; The pwm pulses (PWM) that central processing unit (CPU) output is fixed obtains a fixing DC level and delivers to audio-frequency power amplifier, the gain of control audio power amplifier after the low-pass filter circuit Filtering Processing; The square wave of central processing unit (CPU) output voice prompt is handled through smooth treatmenting circuit, the radio-frequency component that filtering is wherein too much, deliver to audio frequency left and right sound channels passage through the blender treatment circuit then, behind the electric capacity isolated DC, deliver to the left and right sound channels audio input port of audio-frequency power amplifier again, output and driving loud speaker sounding after audio-frequency power amplifier amplifies.
Central processing unit (CPU) is output low level when usual non-prompting sounding state, and the voice-grade channel switching circuit cuts out, and simultaneously the blender treatment circuit is oppositely ended, thereby the normal input that does not influence the television audio circuit is amplified.
Like this, corresponding teleswitch accesses the menu that comprises this function to TV user on the remote controller by pushing, and adjusts the timing of this function choosing-item again.Timing then, the video screen upper right side will show eye-catching prompting symbol, simultaneously loud speaker sends the prompting sound.Also just realized purpose of the present invention.
Below in conjunction with accompanying drawing the present invention is made a detailed description:
Fig. 1 is a theory diagram of the present invention;
Fig. 2 is a circuit theory schematic diagram of the present invention;
Fig. 3 is provided with flow chart for prompt time of the present invention;
Fig. 4 is a prompting control procedure flow chart of the present invention;
Fig. 5 is an operation interface schematic diagram of the present invention;
Fig. 6 is teleswitch exemplary plot on the used remote controller of the present invention;
Fig. 7 is a prompting symbol screen display schematic diagram of the present invention.
A kind of television set of the present invention with timed cue function, contain central processing unit (101), Video Decoder (103), audio-frequency power amplifier (104), remote controller, picture tube, loud speaker etc., between central processing unit (101), Video Decoder (103), audio-frequency power amplifier (104), be connected with circuit and components and parts with timing prompt tone vision signal processing capacity; This circuit and components and parts and original TV set circuit are to be connected like this and to realize timing prompt tone vision signal processing capacity.
Implementation process of the present invention as can be seen from Fig. 1,5,6,7.
Utilize software, definition " prompting " key (603) on the TV user remote controller; The user pushes this key and sends corresponding infrared command, and the infrared remote receiver on the TV (102) receives that the command pulse that this signal is demodulated into behind the infrared modulated signal of this order pulse position modulation (PPM) delivers in the central processing unit (CPU) (101); Central processing unit (CPU) (101) to this command decode after, access corresponding prompt setup menu (501), and wait for user's incoming timing time.The user can push volume on the remote controller and added the timing that (602) or volume down key (601) continue to be provided with prompting this moment.It is 1 to 99 minute that time is provided with scope.After configuring, the inner timing routine of central processing unit (CPU) (101) is started working.When timing then, eye-catching prompting symbol (701) appears in the screen upper right corner; Simultaneously, the audio frequency gating control of central processing unit (CPU) (101) mouthful output control level control audio channel switching circuit (105), a left side/right the television audio signals of input is cut off, the volume of central processing unit (CPU) (101) control mouthful output one fixing pwm pulses (PWM) is converted to a DC control level control audio power amplifier (104) after low-pass filter circuit (108) filtering be a fixed gain, and the size of this gain is too noisy for well not make us feeling voice prompt.The square wave of the voice prompt of central processing unit (CPU) (101) output simultaneously, earlier through smooth treatmenting circuit (107) smoothing processing, consider and send out puckery except that radio-frequency component prevents voice prompt, that passes through blender treatment circuit (106) and audio-frequency power amplifier (104) again sends into audio-frequency power amplifier (104) after a left side/the R channel input mixes, and sends voice prompt thereby export loud speaker through 104 to after amplifying.
Fig. 2 is a circuit theory schematic diagram of the present invention, when the user push " prompting " key (603) send " prompting " order after, central processing unit (CPU) (101) decoding is from order input, after infrared remote receiver HS0038 (102) demodulation of 44 pin, red, green, the blue tristimulus signals that will need prompts displayed menu (501) respectively through three every directly/clamped capacitor C 1, C2, C3 send into 31,30,29 pin of Video Decoder LA7688 (103).The pulse of the quickly-blanking of 30 pin of central processing unit (CPU) (101) output simultaneously is to 28 pin of Video Decoder LA7688 (103).There is a high speed electronic switch Video Decoder LA7688 (103) inside, under the control of the quickly-blanking pulse that 28 pin are imported, to insert the tristimulus signals of television image from the screen display character signal of 29,30,31 pin input, and output to kinescope driver from 33,34,35 pin and amplify, amplify the rear drive picture tube and show.(time length can be provided with, and is traditionally arranged to be 5 seconds) do not pushed volume and added/subtract key (602,601) and carry out timing prompt time, " sound " switch setting (502) before prompting menu (501) disappears.Prompting " sound " option in the menu can be set to " opening " or " passs " by TV user, if be set to " passs ", then prompt time then only has the symbol of prompting screen display (701) and voiceless sound is pointed out on TV.The prompting timing that is provided with as the user then, also output shows the primary colours pulse signal of prompting symbol the image-based chrominance signal from inserting by the inner high speed electronic switch of Video Decoder (103).Simultaneously, switch triode T1, T2 that 51 pin of central processing unit (CPU) (101) output high level drives in the voice-grade channel switching circuit (105) make it saturated, thus the left side that will import/right television audio signals passage short circuit; Fixing pwm pulses (PWM) signal of 39 pin output of central processing unit (CPU) (101), obtain a fixing DC level after low-pass filter circuit (108) filtering via resistance R 1, capacitor C 4 compositions, deliver to the gain of the 3 foot control system audio-frequency power amplifiers (104) of audio-frequency power amplifier TDA7496 (104); The square wave elder generation of the 52 pin output voice prompt of central processing unit (CPU) (101) is through the wherein too much radio-frequency component of capacitor C 7 smoothing processing filterings of smooth treatmenting circuit, blender D1, D2 in blender treatment circuit (106) mixes then, behind C5, C6 isolated DC, deliver to left and right sound channels audio input port 5 pin, 1 pin of audio-frequency power amplifier (104) again, after audio-frequency power amplifier (104) amplifies, export, and drive the loud speaker sounding from 12,14 pin.
Voice-grade channel switching circuit (105) is made up of setover current-limiting resistance R2 and R3, switch triode T1 and T2.Its connecting circuit relation is 51 pin of central processing unit (CPU) (101) and meets R2 and R3, R2 and R3 connect the base stage of switch triode T1 and T2 respectively, the emitter of switch triode T1 and T2 is connected back ground connection, and the collector electrode of T1 and T2 connects a left side/right television audio signals passage respectively; R2, R3 with connect positive five volts of voltages after pull-up resistor R6 is connected in series.
51 pin of central processing unit (CPU) (101) end switch triode T1, T2 in the voice-grade channel switching circuit (105) in usual non-prompting sounding state output low level, thereby the normal input that does not influence television audio is amplified.52 pin of central processing unit (CPU) (101) oppositely end blender D1, D2 in the blender treatment circuit (106) at usual non-prompting sounding state also output low level, thereby the normal input that does not also influence audio frequency is amplified.
R6 among Fig. 2, R7, R8 are respectively the pull-up resistor of 51,52,39 pin of central processing unit (CPU) (101), the positive five volts of voltages of R6, R7, R8 another termination separately.Smoothing processing device C7 also can replace by filter circuit better by flatness, that high frequency filtering effect is stronger, is advisable so that loud speaker sends soft, not ear-piercing voice prompt.For avoiding when pointing out sounding, being cut off suddenly because of the television audio passage, and the audio input end direct current of audio-frequency power amplifier (104) is suddenlyd change, thereby may send the noise of moment, it is quiet to be preferably in preceding 200 to the 400 milliseconds of elder generations of prompting sounding, and promptly 39 pin of central processing unit (CPU) (101) shift to an earlier date the gain vanishing that 200 to 400 milliseconds of output low levels make audio-frequency power amplifier (104).51 pin of central processing unit (CPU) (101) are exported high level again and are cut off the television audio input channel afterwards, point out the control and treatment of sounding.
Smooth treatmenting circuit (107) is connected in series 52 pin of CPU, the end of pull-up resistor R7, blender D2, the other end ground connection of C7 respectively by capacitor C 7.
The circuit connecting relation of low-pass filter circuit (108) is an end of capacitor C 4 respectively and behind connecting resistance R1 and 104 3 pin, is connected in series 39 pin, the pull-up resistor R8 of CPU again; The other end ground connection of C4.
The circuit connecting relation of blender treatment circuit (106) is resistance R 4, R5 respectively and after connecing blender D1 and D2, capacitor C 5 and capacitor C 6, is connected with 104 1 pin, 104 5 pin respectively again.The other end of resistance R 4, R5 connects a left side/right television audio signals passage respectively.
The present invention also contains the audio-video signal treatment system Control Software that a cover is used to realize timed cue function.This Control Software again respectively by a cover be used to be provided with the software program of prompt time and a cover be used to detect whether prompt time and setting are set prompt time whether to software program formed.
Fig. 3 is the software flow pattern that prompt time is set.Program checks at first whether new key input (301) is arranged; If have, check then whether new key is " prompting " key (302).
If the user has pushed " prompting " key (603), then program is carried out (304) and is gone to check whether the current screen display mode is under the prompting setup menu (501); For not, then go to prepare to access 501 menus and show, and the option that the current set of menu is set is first " prompting "; For being, go again then to check whether the current option in the prompting menu is first " prompting " (306); If current option is first, then changing current option is set is second " sound " option (309); If current option is second " sound " option, then removes current " prompting " menu screen and show (308).
Whether if be not checked through the input of " prompting " key during execution in step 302, then continuing to check has volume to add/subtract key input (303); If the user has pushed " volume adds/subtracts " key (602,601), continue then to check whether the current screen display mode is under the prompting setup menu (501): not, then directly withdraw from;
If yes, continue then to check that current option is first " prompting " still second " sound " (310):, then begin to be provided with regularly prompt time (312) if current option is first " prompting " ... volume adds, and then the time progressively increases; Volume down, then the time successively decreases; If current option is second " sound " option, then reversal switch setting (311) ... " open " and be reversed to " pass " or " pass " is reversed to " opening ".
Fig. 4 is the program control flow chart that is used to detect the software program whether prompt time that whether prompt time and setting are set arrived.This program at first checks whether point out timing that (401) are set; If prompt time is provided with, check then whether prompt time arrives (402); If prompt time arrives, then call prompting symbol display routine and prepare display reminding symbol (403), continue again to check whether prompting " sound " option is set to out (404): not, then directly withdraw from, only carry out 701 screen prompt symbols and show; Be, then at first 51 pin of central processing unit (CPU) (101) output high level removes to cut off a television audio left side/right passage (405), then the fixing pwm pulse of 39 pin of central processing unit (CPU) (101) output one through low-pass filter circuit (108) be converted to one fixedly DC level remove to control 104 audio-frequency power amplifiers (104) and make it to be operated in a fixed gain (306), the square wave generation program (407) of deactivation voice prompt then, after level and smooth, be mixed into a left side/R channel input of 104 from the 52 pin output of central processing unit (CPU) (101), send voice prompt thereby after 104 amplifications, export loud speaker to again.
The 52 pin output voice prompt of central processing unit (CPU) (101) is preferably 500 hertz, is spaced apart 1 second square wave.The size of voice prompt is too noisy for well not make us feeling sound.
The components and parts of the part model of the used circuit of the embodiment of the invention also can do as one likes can similarly be substituted.
Claims (4)
1. the television set with timed cue function contains central processing unit (CPU) (101), Video Decoder (103), audio-frequency power amplifier (104), remote controller, picture tube, loud speaker etc., it is characterized in that:
Between central processing unit (CPU) (101), Video Decoder (103), audio-frequency power amplifier (104), be connected with circuit and the corresponding components and parts that timing prompt tone vision signal processing capacity is controlled; And have a following feature:
When the user passes through specific " prompting " key of remote controller, after sending call instruction, the instruction after the infrared remote receiver demodulation of central processing unit (CPU) (101) decoding input, with red, green, the blue tristimulus signals of need prompts displayed menu respectively through every directly/clamped electric capacity sends into Video Decoder (103); The pulse of the quickly-blanking of central processing unit (CPU) (101) output simultaneously is to Video Decoder (103); There is a high speed electronic switch Video Decoder (103) inside, under the control of the quickly-blanking pulse of importing, the screen character tristimulus signals of input are inserted in the tristimulus signals of television image, and output to the kinescope driver amplification, amplify the rear drive picture tube and show; Pushing volume before not disappearing at the prompting menu adds/subtracts key and carry out timing prompt time, the setting of " sound " switch; " sound " option in the prompting menu can be set to " opening " or " pass " by the user, if be set to " pass ", then prompt time then only has prompting symbol screen display and the voiceless sound prompting;
The prompting timing that is provided with as the user then, the primary colours pulse of prompting symbol inserts by the inner high speed electronic switch of Video Decoder (103) also that output shows in the image-based chrominance signal; Simultaneously, central processing unit (CPU) (101) output high level drives voice-grade channel switch (105) makes it saturated, thereby with a TV left side/right channel audio signal passage short circuit of importing; The fixing pwm pulses (PWM) of central processing unit (CPU) (101) output obtains a fixing DC level and delivers to audio-frequency power amplifier (104), the gain of control audio power amplifier (104) after low-pass filter circuit (108) filtering; The square wave of central processing unit (CPU) (101) output voice prompt is earlier through smooth treatmenting circuit (107), the radio-frequency component that filtering is wherein too much, then after blender treatment circuit (106) mixing, isolated DC are handled, deliver to the left and right sound channels audio signal input port of audio-frequency power amplifier (104), after audio-frequency power amplifier (104) amplifies, output to the loud speaker sounding.
2. a kind of television set as claimed in claim 1 with timed cue function, it has circuit that timing prompt tone vision signal processing capacity is controlled and the voice-grade channel switching circuit (105) in the corresponding components and parts has following feature: voice-grade channel switching circuit (105) is made up of biasing current-limiting resistance R2 and R3, switch triode T1 and T2; Its circuit connecting relation is 51 pin of central processing unit (CPU) (101) and meets R2 and R3, R2 and R3 connect the base stage of switch triode T1 and T2 respectively, the emitter of switch triode T1 and T2 is connected back ground connection, and the collector electrode of T1 and T2 connects a left side/right television audio signals passage respectively; R2, R3 with connect positive five volts of voltages after pull-up resistor R6 is connected in series.
3. a kind of television set as claimed in claim 1 with timed cue function, it has circuit that timing prompt tone vision signal processing capacity is controlled and the low-pass filter circuit (108) in the corresponding components and parts has following feature: the annexation of low-pass filter circuit (108) is an end of capacitor C 4 respectively and behind 3 pin of connecting resistance R1 and 104, is connected in series 39 pin, the pull-up resistor R8 of CPU again; The other end ground connection of C4.
4. a kind of television set with timed cue function as claimed in claim 1 is characterized in that: the voice prompt of the 52 pin output of central processing unit (CPU) (101) is preferably 500 hertz, is spaced apart 1 second square wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98107193A CN1081423C (en) | 1998-04-15 | 1998-04-15 | Colour TV set with timed cue function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98107193A CN1081423C (en) | 1998-04-15 | 1998-04-15 | Colour TV set with timed cue function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1202779A CN1202779A (en) | 1998-12-23 |
| CN1081423C true CN1081423C (en) | 2002-03-20 |
Family
ID=5219267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98107193A Expired - Fee Related CN1081423C (en) | 1998-04-15 | 1998-04-15 | Colour TV set with timed cue function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1081423C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI280043B (en) | 2005-09-29 | 2007-04-21 | Asustek Comp Inc | Television capable of performing reminding function |
| CN100508573C (en) * | 2005-10-12 | 2009-07-01 | 华硕电脑股份有限公司 | Television with reminding function |
| CN100527809C (en) * | 2006-03-30 | 2009-08-12 | 华硕电脑股份有限公司 | Video and audio playback system and method with auxiliary wiring function |
| CN101626472B (en) * | 2008-07-11 | 2011-03-23 | 鸿富锦精密工业（深圳）有限公司 | Media playing device and health prompting method thereof |
| CN104469531A (en) * | 2014-12-18 | 2015-03-25 | 乐视致新电子科技（天津）有限公司 | Timing reminder method and device |
| CN108388104A (en) * | 2018-01-22 | 2018-08-10 | 上海酷曼网络科技有限公司 | A kind of intelligent alarm clock using knob button and voice combination settings |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107094U (en) * | 1991-07-19 | 1992-06-10 | 李冀增 | Multi-functional television remote-controller |
-
1998
- 1998-04-15 CN CN98107193A patent/CN1081423C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107094U (en) * | 1991-07-19 | 1992-06-10 | 李冀增 | Multi-functional television remote-controller |
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| Publication number | Publication date |
|---|---|
| CN1202779A (en) | 1998-12-23 |
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