CN200976098Y - Digital recording alarm clock - Google Patents
Digital recording alarm clock Download PDFInfo
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- CN200976098Y CN200976098Y CN 200620014791 CN200620014791U CN200976098Y CN 200976098 Y CN200976098 Y CN 200976098Y CN 200620014791 CN200620014791 CN 200620014791 CN 200620014791 U CN200620014791 U CN 200620014791U CN 200976098 Y CN200976098 Y CN 200976098Y
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Abstract
The utility model relates to a digital recording alarm clock, comprising a control circuit, a control command input device and a display device connected with the control circuit, wherein, a MCU is arranged in the control circuit. The MCU is connected with a clock circuit and a ringing control circuit. The control command input device is composed of a clock display setting key and a setting key for ringing at certain times. A clock display section is arranged on the display device, the utility model is characterized in that: the output terminal of the ringing control circuit is connected with a voice processing unit with the ability of recording and playing back; the voice processing unit is connected with a microphone and a speaker; the control command input device also comprises a recording key and a play key. The digital recording alarm clock of the utility model has the advantages that: consumers can take self-recording sound which is favorite by the consumers as ring of the alarm clock; individual requirements of consumers can be met to the full extent; consumers can record voice messages and play the voice messages at certain times; the utility model also has a secretarial function.
Description
Technical field
The utility model relates to digital clock, more particularly, relates to a kind of digital recording alarm clock of recording and can playing institute's recorded voice signal.
Background technology
The clock and watch product is an indispensable product in the general life, and long lasting, its advantage is economical and practical, and is kind and approachable, and everybody uses.The alarm clock product is also being constantly brought forth new ideas in recent years, for example adds that music quarter-bell, color lamp are backlight, inductive switch or the like, has increased many gloss to digital clock.
But the quarter-bell sound of existing alarm clock just is solidificated in the chip by coding before generally being dispatched from the factory by chip production manufacturer, even if the music quarter-bell also only has several head, and can not change the quarter-bell content voluntarily, so the quarter-bell dullness, and user's selectivity is little.And lack individuality, can't satisfy the demand of user individual.
The utility model content
The technical problems to be solved in the utility model is, at the above-mentioned alarm clock quarter-bell dullness of prior art, the defective that user selection is little, provide a kind of can be by user recorded voice and the Multifunctional Digital Clock regularly play voluntarily.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of digital recording alarm clock, the regulation and control command input device, the display device that comprise control circuit, link to each other with control circuit; Be provided with MCU in the wherein said control circuit, described MCU is connected with clock circuit, quarter-bell control circuit; Described regulation and control command input device comprises that the clock demonstration is provided with key, regularly quarter-bell is provided with key; Described display device is provided with the clock viewing area; It is characterized in that the output terminal of described quarter-bell control circuit is connected with the Audio Processing Unit that can record and reset, this Audio Processing Unit is connected with microphone and loudspeaker, and described regulation and control command input device also comprises record button and play button.
In digital recording alarm clock of the present utility model, the output terminal of described quarter-bell control circuit also is connected with hummer, and described quarter-bell control circuit comprises can select an output switching selection switch as the quarter-bell voice output between described Audio Processing Unit and hummer.
In digital recording alarm clock of the present utility model, the output terminal of described quarter-bell control circuit also is connected with music IC, and described output switching selection switch also comprises can select a change-over switch as the voice output of timing quarter-bell between Audio Processing Unit and music IC.
In digital recording alarm clock of the present utility model, described Audio Processing Unit also is provided with the circuit of changing voice.
In digital recording alarm clock of the present utility model, described Audio Processing Unit is the AMSRB006A recording chip, the described circuit of changing voice is connected between recording chip OSC end and the power vd D2 end, it comprise an end parallel connection a plurality of different resistances resistor and can between the other end of these a plurality of resistors, switch the cancel of connection.
In digital recording alarm clock of the present utility model, described Audio Processing Unit is the AMSRB006A recording chip, and the described circuit of changing voice is to be connected the adjustable resistance that the recording chip OSC end resistance between holding with power vd D2 is regulated between can 150K Ω to 680K Ω.
In digital recording alarm clock of the present utility model, described MCU is the GC4116A single-chip microcomputer.
In digital recording alarm clock of the present utility model, described regulation and control command input device also comprises alarm clock function ON/OFF key and/or snooze/backlight key.
In digital recording alarm clock of the present utility model, the display screen of described display device also comprises: date viewing area, week the viewing area.
In digital recording alarm clock of the present utility model, described MCU is connected with temperature and/or humidity measuring circuit; Described display screen is provided with temperature and/or humidity display district.
Implement digital recording alarm clock of the present utility model, have following beneficial effect: (1), user can record the sound oneself the liked quarter-bell as alarm clock voluntarily, farthest satisfy user's individual demand.(2), user's recorded speech information voluntarily, and regularly play voice messaging, possess secretary function.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the functional module structure figure according to the digital recording alarm clock of the utility model embodiment;
Fig. 2 is the functional module structure figure according to the digital recording alarm clock of another embodiment of the utility model;
Fig. 3 A is the external structure of the utility model digital recording alarm clock embodiment;
Fig. 3 B is the stereographic map of digital recording alarm clock shown in Fig. 3 A;
Fig. 4 is the circuit theory diagrams of the utility model digital recording alarm clock embodiment;
Fig. 5 be embodiment illustrated in fig. 4 in, the principle of work block diagram of AMSRB006A recording chip;
Fig. 6 be embodiment illustrated in fig. 4 in, the principle of work block diagram of GC4116A clock chip.
Embodiment
The clock and watch product is an indispensable product in the general life, and long lasting, its advantage is economical and practical, and is kind and approachable, and everybody uses.Product is also being constantly brought forth new ideas in recent years, for example adds the music quarter-bell, and color lamp is backlight, and inductive switch or the like has increased many gloss to digital clock.
The utility model has increased recording/playing function on the basis of existing digital clock, the sound that the user can be recorded voluntarily oneself like farthest satisfies user's individual demand as the quarter-bell of alarm clock.
As shown in Figure 1, the digital recording alarm clock of the present utility model regulation and control command input device, display device, microphone (MIC) and the loudspeaker that comprise control circuit, link to each other with control circuit.Wherein be provided with MCU in the control circuit, this MCU is connected with clock circuit and quarter-bell control circuit.The output terminal of quarter-bell control circuit is connected with the Audio Processing Unit (recording IC) that can record and play institute's recorded voice.In the work, after the clock signal that MCU produces clock circuit is handled, when demonstrating by display device, minute, second, date and/or week equal time information.When the quarter-bell time of setting arrived, quarter-bell control circuit triggering Audio Processing Unit driving loudspeaker plays was prerecorded sound therein.This sound of prerecording can be any sound that the user records by MIC.
Embodiment shown in Figure 2 has increased hummer, music IC and the circuit of changing voice on the basis of Fig. 1 embodiment.The user can by the setting to the quarter-bell control circuit, select in hummer, music IC and recording IC as required, and wherein any one of selection selected as the quarter-bell voice output.In addition, the user can also be provided with or regulate the circuit of changing voice as required, thereby changes the tone when institute's sound recording sound is play among the recording IC.This part content of the selection of relevant voice output will describe in detail in conjunction with Fig. 4 in the back.
Shown in Fig. 3 A and Fig. 3 B, on external structure, this digital recording alarm clock includes display screen 32, microphone (MIC) 33, loudspeaker 34, record indicator 35 and a plurality of button 310,315,316.These a plurality of buttons 310,315,316 belong to a part of regulating and control command input device.Button 315 and 316 is respectively record button and play button.Button 310 can comprise that the clock demonstration is provided with key, regularly quarter-bell is provided with key.As selection, button 310 also can comprise SNOOZE/ backlight key, alarm clock function ON/OFF key, volume adjusting key etc.Wherein snooze (SNOOZE)/backlight is two shared keys of function, when quarter-bell rings, presses that this key can only make a noise and it is noisy to ring again after a few minutes (as 4,5 minutes), and under the non-quarter-bell state, it is bright to press this button background light.These buttons can be independent function keys, cooperate+,-key carries out that clock shows, regularly quarter-bell setting.Also can be Macintosh, show and setting key by mode selecting key, on-screen menu ,+,-key is provided with.
Fig. 4 is the circuit theory diagrams of the utility model digital recording alarm clock embodiment.As shown in Figure 4, what Audio Processing Unit adopted among this embodiment is the AMSRB006A recording chip, and what MCU adopted is the GC4116AMASK single-chip microcomputer.
The Play-E of AMSRB006A recording chip, Play-L, Rec-L, Rec-E pin are connected with Play-E, Play-L, Rec-L, Rec-E button respectively.Also be connected with microphone M1, loudspeaker SPEAKER and record indicator LED2 on the corresponding input of AMSRB006A recording chip, the output pin.
Be connected with hummer B1 between the IOA6 pin of GC4116A MASK single-chip microcomputer and the VDD.Its IOA7 pin is connected with change-over switch S1, and its effect is to select quarter-bell signal output control signal is transferred to music IC or is transferred to recording IC.
The INB3-INB7 of GC4116A MASK single-chip microcomputer and+be connected with model selection MODE key respectively between the 3V power supply, the SET key be set ,+/ alarm ON/OFF UP/C/F/ALAEM ON/OFF key,-/12/24 display mode select DOWN/12/24 key, snooze/background light to select the SOOZE/LIGHT key.INB1 is connected with option switches Optionl, and it can switch between+3V power supply and ground; INB2 is connected with option switches Option2, and it can switch between+3V power supply and ground; With the output of selection quarter-bell sound in hummer, music IC and recording IC, as shown in the table:
| |
Option switches 2 | Function |
| GND | GND | The output of driving hummer |
| GND | VDD | Drive music IC output |
| VDD | VDD | Drive recording IC output |
Between recording chip OSC end and power vd D2 end, be connected with the circuit of changing voice, it comprise an end parallel connection three different resistances resistor and can between the other end of these three resistors, switch the cancel of connection.For example, the resistance of these three resistors is respectively 150k Ω, 430k Ω, 680k Ω.When pushing the 430K resistance grade at cancel, normal recording, playback.During playback, when cancel being pushed the 150K resistance grade, the sound that plays back is girl's sound; And cancel is pushed the 680K resistance grade, the sound that then plays back is old male sound.Certainly the quantity of resistor is not limited to 3, also can be 2,4,5 etc.As selection, this circuit of changing voice also can be realized by being connected the adjustable resistance that the recording chip OSC end resistance between holding with power vd D2 regulates between can 150K Ω to 680K Ω.
Below in conjunction with Fig. 5, Fig. 6 the principle of work of the utility model digital recording alarm clock is elaborated.
In this embodiment, the control circuit of digital recording alarm clock mainly comprises two IC chips, and wherein recording, player function are to be realized by AMSRB006A recording IC.Ring tone be by GC4116A clock IC setting after the quarter-bell time arrives, will export a continuous high level signal of 1 minute, connect switch triode, trigger the play button of recording IC, the sound that repeat playing records in advance, duration are 1 minute.GC4116A clock IC mainly contains following function; Can show year, month, day, week, the time, branch, temperature, humidity, following weather forecasting and demonstration, alarm clock has the snooze and background light is lighted and time-delay closing function.
The AMSRB006A information recording device provides high-quality record/the put application of 6 seconds information.Cmos device comprises sheet internal oscillator, microphone preamplifier, from gain control, pulsed filter, smoothing filter and speaker amplifier.Use a microphone, loudspeaker, several element, record/put button and power supply just can be configured to minimum recording/playback subsystem.
In the nonvolatile memory of sound store on sheet of admission, it provides the storage of zero power information, and information can be preserved up to 100 years under the situation of power supply not having.Voice and voice signal directly deposit in the reservoir with their natural form, thereby have obtained high-quality solid-state sound reproduction.
AMSRB006A recording IC comprises REC record button and PLAY playback button circuit, voltage supply circuit, record indicator LED output circuit, microphone input end (MIC) circuit, loudspeaker output circuit as shown in Figure 5.
About REC record button and PLAY playback button circuit, by the effective recorded audio signals of REC key input end low level, device begins recording when the REC step-down during recording, and signal must keep low level in record length.When REC moves high level to or storage space when being filled, just be through with during the recording.
When PLAY playback button signal from high to low the time, then the playback cycle begins.The playback meeting continues to be drawn high up to PLAY always, detects till the end of EOM mark or arrival storage space.When the playback cycle finished, device can enter the stand-by operation mode by automatic power down.
Voltage supply circuit; The analog-and digital-circuit of AMSRB006A inside has used the power bus that separates, to reduce the noise jamming on the sheet.These power buss are drawn out to the pin that separates on the IC, should link together and close as much as possible power supply.This point is very important: the decoupling element of power supply should be tried one's best near IC.
Record indicator LED output circuit; During recording, REC imports step-down, it can be used as and drive a LED lamp, and a feedback information is provided, and shows to be in during the recording.In addition, during playback in, REC has the low to pulse of a moment when running into the EOM mark.
Microphone input end (MIC) circuit; The microphone input end is that its signal is sent on the prime amplifier of recording IC.Automatic gain control (AGC) circuit has been controlled the gain of this prime amplifier on sheet, from-15dB to 24dB.External microphone is ac-coupled on this pin by the capacitor of a serial connection, and the numerical value of this electric capacity has determined the logical low-frequency cut-off frequency of AMSRB006A series band together with the inside 4.7K resistance value on this pin.
Loudspeaker output circuit PWM1, PWM2; PWM and PWM2 pin provide direct driving impedance to be lower than the loudspeaker of 16 Ω.Can use single-ended output directly to drive loudspeaker, improvement up to 4 times be arranged but the output of two reversed polarity is connected the output power aspect than single-ended output.During recording, the loudspeaker output is in high-impedance state, and remains on VSSA in during power down.
As shown in Figure 6, GC4116A clock IC is made up of following circuit: reset circuit, clock circuit, function button, LCD display circuit, quarter-bell control circuit, backlight circuit, temperature and humidity metering circuit.Its principle of work is as follows;
The principle of work of reset circuit;
When the automatic reset circuit of single-chip microcomputer GC4116A is the single-chip microcomputer energized, CPU is before bringing into operation, require inner each circuit state of single-chip microcomputer should finish initialization, therefore, requirement applies the level pulse of certain width at the reset terminal of monolithic, the hand-reset button uses when then generally being used for taking place to crash when single-chip microcomputer moves, and the inspection that also is used for the full screen demonstration of LCD clock is simultaneously used.
The reset circuit peripheral cell is made up of RESET button and capacitor C 6.
The principle of work of clock circuit:
The external oscillation frequency of oscillator end of employed single-chip microcomputer IC is the crystal oscillator of 32.768KHz in the LCD clock, and the circuit in this crystal oscillator and the single-chip microcomputer has been formed the clock oscillator of a single-chip microcomputer operation.In order to reduce the frequency departure of LCD clock, must select suitable external capacitor.
Clock circuit is made up of crystal oscillator Y1 and capacitor C 4, C5 (25P).
The principle of work of LED-backlit circuit:
In night or dark in order to see the shown time of LCD clock clearly, generally be equipped with backlight control circuit, when the needs back lighting, making output port output backlight duration of single-chip microcomputer IC by backlight key control is 3 seconds pulse, the control transistor makes it conducting, thereby LED light emitting diode energized is luminous, illuminate the LCD display curtain.
The LED-backlit circuit is made up of resistance R 1 (22 Ω) and triode Q3 (S8050) and LED1.
The principle of work of quarter-bell control circuit:
When the quarter-bell time of setting arrives, the quarter-bell output port meeting output audio signal of single-chip microcomputer IC, " serge, serge " sound, by the note amplifier of forming by transistor and inductance, piezo, the output process is amplified the noisy sound of sound, and alarm clock is provided with the snooze, covets the interval time of sleeping is 4 minutes.
Adopt " serge, serge " sound to form resistance R 5 (1K) by following element as the quarter-bell circuit, triode Q1 (S8050), piezo BUZZER and inductance L 1 (25mH) are formed.
As adopt the sound that records in advance to play as ring tone, when the sound of the setting time of making a noise arrives, single-chip microcomputer IC provides 1 minute high level, triode Q2 (S8050) is an electronic switch, the collector of triode Q2 connects the playback pin of AMSRB006A recording IC, after electronic switch closed, playback button came out the sound playing that records in advance also with regard to ground connection.
The control of alarm clock recorded audio signals is made up of resistance R 7 (1K), triode Q2 (S8050), resistance R 8 (1K), and the collector of triode Q2 connects the playback pin of recording IC.
Thermometric principle of work:
Indirect measuring method is generally all adopted in measurement to resistance, many measuring methods that all adopt relative time or numeration in the LCD clock.Promptly utilize single-chip microcomputer IC to provide sampling pulse, respectively to measuring the charging of loop and reference loop, and the ratio of Measuring Time constant, when the reference resistance in circuit immobilizes, the measurement of ratio is exactly the measurement to thermosensitive resistance, but to the measurement of temperature, the advantage of this kind relative measurement is: the measuring accuracy height, and be easy to systematic error is calibrated.
Temperature measuring circuit is that reference resistance R 2 (10K Ω) and charging capacitor C15 form by thermistor R/T (resistance value of thermistor 25 ℃ the time is 10K Ω).
The principle of work of moisture measurement:
Utilize single-chip microcomputer IC to provide sampling pulse, charge to measuring loop and reference loop respectively, and the ratio of Measuring Time constant, when the reference resistance in circuit immobilizes, the measurement of ratio is exactly the measurement to the humidity sensor value, humidity sensor has two kinds, and a kind of is resistance measurement, low price, generally be used in the LCD clock, another kind is a capacitive measurement, and price is expensive, generally is used for instrument and meter.
Humidity measuring circuit is that reference resistance R 3 (680K Ω), current-limiting resistance R4 and charging capacitor C15 form by humidity sensor R/H (resistance value of temperature when humidity is at 60%RH 25 ℃ the time is 31K Ω).
The utility model digital recording alarm clock has following function:
The utility model digital recording alarm clock can be a digital voice recorder simultaneously, by being contained in the microphone in the product, on any sound recording that the user will be able to be recorded and the built-in recording chip that is stored into product, and sound playing is come out by the controls playing key;
After setting the arrival of quarter-bell time, MCU will export a continuous high level signal, triggers the recording playing function, thereby realizes regularly broadcast and the function of repeat playing recording substance continuously.
The record length of the utility model digital recording alarm clock is decided on the capacity of employed recording chip, can be from several seconds to dozens of minutes even up to a hundred minutes; The recording sectional is recorded with segmentation and is play, and also can record continuous broadcast continuously;
The utility model digital recording alarm clock is controlled by MCU, can trigger in different time points and play different recording sections, realizes regularly prompting function;
Can record voluntarily owing to ring noisy sound and content, the practicality and the interest of the utility model digital recording alarm clock are all more intense;
The utility model digital recording alarm clock can pass through toggle switch, changes the resistance value of circuit, just can change the feature of sound, can accomplish that male voice becomes female voice, and female voice becomes male voice, and voice becomes alternative sounds effects such as machine voice, has increased the interest of product.
The utility model digital recording alarm clock uses three 1.5V dry cells to be the digital recording circuit supply, uses two 1.5V dry cells or a 3.0V button-type lithium cell to power as the LCD clock.
Claims (9)
1, a kind of digital recording alarm clock, the regulation and control command input device, the display device that comprise control circuit, link to each other with control circuit; Be provided with MCU in the wherein said control circuit, described MCU is connected with clock circuit, quarter-bell control circuit; Described regulation and control command input device comprises that the clock demonstration is provided with key, regularly quarter-bell is provided with key; Described display device is provided with the clock viewing area; It is characterized in that the output terminal of described quarter-bell control circuit is connected with the Audio Processing Unit that can record and reset, this Audio Processing Unit is connected with microphone and loudspeaker, and described regulation and control command input device also comprises record button and play button.
2, digital recording alarm clock according to claim 1, it is characterized in that, the output terminal of described quarter-bell control circuit also is connected with hummer, and described quarter-bell control circuit comprises can select an output switching selection switch as the quarter-bell voice output between described Audio Processing Unit and hummer.
3, digital recording alarm clock according to claim 2, it is characterized in that, the output terminal of described quarter-bell control circuit also is connected with music IC, and described output switching selection switch also comprises can select a change-over switch as the voice output of timing quarter-bell between Audio Processing Unit and music IC.
4, according to each described digital recording alarm clock in the claim 1 to 3, it is characterized in that described Audio Processing Unit also is provided with the circuit of changing voice.
5, digital recording alarm clock according to claim 4, it is characterized in that, described Audio Processing Unit is the AMSRB006A recording chip, the described circuit of changing voice is connected between recording chip OSC end and the power vd D2 end, it comprise an end parallel connection a plurality of different resistances resistor and can between the other end of these a plurality of resistors, switch the cancel of connection.
6, digital recording alarm clock according to claim 4, it is characterized in that, described Audio Processing Unit is the AMSRB006A recording chip, and the described circuit of changing voice is to be connected the adjustable resistance that the recording chip OSC end resistance between holding with power vd D2 is regulated between can 150K Ω to 680K Ω.
7, digital recording alarm clock according to claim 4 is characterized in that, described MCU is the GC4116A single-chip microcomputer.
8, digital recording alarm clock according to claim 4 is characterized in that, described regulation and control command input device also comprises alarm clock function ON/OFF key and/or snooze/backlight key.
9, digital recording alarm clock according to claim 4 is characterized in that, described MCU is connected with temperature and/or humidity measuring circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620014791 CN200976098Y (en) | 2006-09-18 | 2006-09-18 | Digital recording alarm clock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620014791 CN200976098Y (en) | 2006-09-18 | 2006-09-18 | Digital recording alarm clock |
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| CN200976098Y true CN200976098Y (en) | 2007-11-14 |
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| CN 200620014791 Expired - Fee Related CN200976098Y (en) | 2006-09-18 | 2006-09-18 | Digital recording alarm clock |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950155A (en) * | 2010-09-08 | 2011-01-19 | 周大庆 | Multifunctional intelligent alarm clock sounding device |
| CN101950154A (en) * | 2010-09-08 | 2011-01-19 | 周大庆 | Multifunctional environment stimulation device |
| CN102253642A (en) * | 2011-08-11 | 2011-11-23 | 谭强 | Multifunctional electric clock |
| CN102331709A (en) * | 2011-05-31 | 2012-01-25 | 苏州天擎电子通讯有限公司 | Solar energy alarm clock |
| CN102523333A (en) * | 2011-11-24 | 2012-06-27 | 宇龙计算机通信科技(深圳)有限公司 | Processing method and device for realizing time prompt of mobile terminal |
| CN108022579A (en) * | 2018-01-16 | 2018-05-11 | 深圳和而泰小家电智能科技有限公司 | Sounding regulating device, adjusting method and the household electrical appliance of a kind of buzzer |
| CN109270829A (en) * | 2018-11-02 | 2019-01-25 | 北海华源电子有限公司 | Portable electronic mosquito repellent alarm clock |
| CN109782575A (en) * | 2017-11-15 | 2019-05-21 | 深圳市洛斐客文化有限公司 | A kind of multi-functional alarm clock |
-
2006
- 2006-09-18 CN CN 200620014791 patent/CN200976098Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950155A (en) * | 2010-09-08 | 2011-01-19 | 周大庆 | Multifunctional intelligent alarm clock sounding device |
| CN101950154A (en) * | 2010-09-08 | 2011-01-19 | 周大庆 | Multifunctional environment stimulation device |
| CN102331709A (en) * | 2011-05-31 | 2012-01-25 | 苏州天擎电子通讯有限公司 | Solar energy alarm clock |
| CN102253642A (en) * | 2011-08-11 | 2011-11-23 | 谭强 | Multifunctional electric clock |
| CN102523333A (en) * | 2011-11-24 | 2012-06-27 | 宇龙计算机通信科技(深圳)有限公司 | Processing method and device for realizing time prompt of mobile terminal |
| CN102523333B (en) * | 2011-11-24 | 2013-12-25 | 宇龙计算机通信科技(深圳)有限公司 | Processing method and device for realizing time prompt of mobile terminal |
| CN109782575A (en) * | 2017-11-15 | 2019-05-21 | 深圳市洛斐客文化有限公司 | A kind of multi-functional alarm clock |
| CN108022579A (en) * | 2018-01-16 | 2018-05-11 | 深圳和而泰小家电智能科技有限公司 | Sounding regulating device, adjusting method and the household electrical appliance of a kind of buzzer |
| CN109270829A (en) * | 2018-11-02 | 2019-01-25 | 北海华源电子有限公司 | Portable electronic mosquito repellent alarm clock |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20150918 |
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| EXPY | Termination of patent right or utility model |