CN200976097Y - Multifunction digital clock - Google Patents

Multifunction digital clock Download PDF

Info

Publication number
CN200976097Y
CN200976097Y CNU2006200144422U CN200620014442U CN200976097Y CN 200976097 Y CN200976097 Y CN 200976097Y CN U2006200144422 U CNU2006200144422 U CN U2006200144422U CN 200620014442 U CN200620014442 U CN 200620014442U CN 200976097 Y CN200976097 Y CN 200976097Y
Authority
CN
China
Prior art keywords
mcu
clock
module
digital clock
multifunctional digital
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
CNU2006200144422U
Other languages
Chinese (zh)
Inventor
陈芒
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.)
SHENZHEN CHAOWEI INDUSTRY Co Ltd
Original Assignee
SHENZHEN CHAOWEI INDUSTRY Co Ltd
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 SHENZHEN CHAOWEI INDUSTRY Co Ltd filed Critical SHENZHEN CHAOWEI INDUSTRY Co Ltd
Priority to CNU2006200144422U priority Critical patent/CN200976097Y/en
Application granted granted Critical
Publication of CN200976097Y publication Critical patent/CN200976097Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Abstract

The utility model relates to a multifunctional digital clock, comprising a control circuit, a control command input device, a display device and an audio output device connected with the control circuit; wherein, a first MCU is arranged in the control circuit, a clock generation module, a clock display control module and a timing diabolo control module are arranged in the first MCU; the control command input device is composed of a clock display setting key and a timing diabolo setting key; a clock display section is arranged on the display device; the control circuit also comprises a second MCU connected with the first MCU; an external connection memory interface, an audio file decoding module and a power amplification module are connected with the second MCU; an audio file reading and playing control module is arranged in the second MCU; the control command input device comprises an audio file select key. The multifunctional digital clock of the utility model can help users take favorite sound as ring of the alarm clock by oneself and individual requirements of consumers can be met to the full extent, which can also fully utilize prior resources and is environmentally safe and low in cost.

Description

Multifunctional Digital Clock
Technical field
The utility model relates to digital clock, more particularly, relates to a kind of Multifunctional Digital Clock that can regularly play the MP3 music.
Background technology
Existing common alarm clock general utility functions are single, only can show Time of Day, and the quarter-bell dullness of alarm clock, and user's selectivity is little.In addition, having now has some more out-of-date comparatively speaking low capacity SD card or flash disks in many staff, do not use basically, causes the very big wasting of resources.These things being turned waste into wealth, make full use of the cost that existing resource reduces new product, is that some have the corporate decision maker of market eye and environmental consciousness and product development personnel to pursue and consider.
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, provides a kind of and can be provided with by the user, regularly play the Multifunctional Digital Clock of the music that the user selects.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of Multifunctional Digital Clock, the regulation and control command input device, display device, the audio output device that comprise control circuit, link to each other with control circuit; Wherein said control circuit comprises a MCU who is provided with clock generating module, clock demonstration regulation and control module, timing quarter-bell regulation and control module; 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, described control circuit also comprise be connected with a MCU communication port be provided with the 2nd MCU that audio file reads transmit control module, external memorizer interface, the audio file decoder module that is connected with described the 2nd MCU, the power amplifier module that is connected with the output terminal of audio file decoder module, and the audio output device that is connected with the power amplifier module output terminal, described regulation and control command input device also comprises the audio file options button.
In Multifunctional Digital Clock of the present utility model, described the 2nd MCU also is connected with internal memory.
In Multifunctional Digital Clock of the present utility model, described the 2nd MCU also is provided with equalizer module.
In Multifunctional Digital Clock of the present utility model, described external memorizer interface comprises SD card, mmc card interface and/or USB interface.
In Multifunctional Digital Clock of the present utility model, described audio file decoder module comprises MP3, WAV, WMA and/or RA format audio file decoding module.
In Multifunctional Digital Clock of the present utility model, described regulation and control command input device also comprises following button: in alarm clock function ON/OFF key, snooze/backlight key, broadcast/time-out/stop key, the selection/and next melody key, volume adjusting key and/or balanced device key.
In Multifunctional Digital Clock of the present utility model, the display screen of described display device also comprises: date viewing area, week viewing area, alarm clock viewing area, volume viewing area, balanced device viewing area and/or play mode viewing area are set.
In Multifunctional Digital Clock of the present utility model, a described MCU is 8 8-digit microcontrollers, and described the 2nd MCU comprises single-chip microcomputer and MP3 digital signal processor integrated circ.
In Multifunctional Digital Clock of the present utility model, described internal memory comprises mask-type ROM (MASK ROM).
In Multifunctional Digital Clock of the present utility model, also be connected with temperature and/or humidity sensor in the described control circuit, described display screen is provided with temperature and/or humidity display district.
Implement Multifunctional Digital Clock of the present utility model, have following beneficial effect: the user can select the melody oneself the liked quarter-bell as alarm clock voluntarily, farthest satisfies user's individual demand; Made full use of existing resource, turned waste into wealth, cost of products is low, compliance with environmental protection requirements.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Figure 1A is the functional module structure figure of the utility model Multifunctional Digital Clock;
Figure 1B is the functional module structure figure of the utility model Multifunctional Digital Clock;
Fig. 2 is the synoptic diagram of the utility model Multifunctional Digital Clock embodiment;
Fig. 3 is the circuit theory diagrams of the utility model Multifunctional Digital Clock embodiment;
Fig. 4 is the synoptic diagram according to the 8 8-digit microcontroller IC chips of the utility model Multifunctional Digital Clock embodiment;
Fig. 5 is the synoptic diagram according to 8051 single-chip microcomputers of the utility model Multifunctional Digital Clock embodiment+MP3 DSP IC 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.
MP3 then is the digital product that has just risen over the last two years, the young man is MP3 of staff almost, so it is intoxicated in the music world of oneself. move towards in modern product under the trend of personalization, the adding of Mp3, to can will be referred to as " the MP3 music clock of desktop " to new life of digital clock.
The design concept of Multifunctional Digital Clock of the present utility model is to increase the MP3 playing function on the basis of existing digital clock, and will make full use of in a lot of staff existing low capacity SD/MMC card or USB flash drive as external memorizer.
Adopt design of the present utility model, digital clock is remoulded oneself thoroughly, become the desktop small sized personal MP3 sound equipment that can substitute traditional recording playback machine.It can use SD/MMC card or USB flash drive to replace audiotape or CD.In addition, can give up built-in flash memory internal memory, reduce production costs, and the price risk of avoiding the flash memory internal memory, for the user provides a kind of cost performance high product.Have again, the CRBT of the mobile phone that matches in excellence or beauty, the free MP3 music of user is worked as the alarm clock ring tone, fully satisfying personalized demand.
Shown in Figure 1A, regulation and control command input device, display device, audio output device and power interface that Multifunctional Digital Clock of the present utility model comprises control circuit, links to each other with 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 and audio file options button (not shown).
Be provided with first microcontroller (MCU), the 2nd MCU, external memorizer interface, audio file decoder module and power amplifier module in the control circuit.The one MCU communicates by letter with the 2nd MCU and links to each other.Be provided with clock generating module, clock among the one MCU and show regulation and control module, quarter-bell regulation and control module regularly, be provided with among the 2nd MCU that audio file reads and transmit control module.Wherein the external memorizer interface links to each other with the 2nd MCU, and the input end of audio file decoder module links to each other with the 2nd MCU, and the output terminal of audio file decoder module links to each other with the input end of power amplifier module, and the output terminal of power amplifier module is connected to audio output device.
Shown in Figure 1B, select as another, the 2nd MCU of the utility model Multifunctional Digital Clock also can connect an internal memory.In addition, as improvement, also equalizer module can be set among the 2nd MCU to play quality.
The principle of work of Multifunctional Digital Clock of the present utility model is: according to the needs of timing quarter-bell, can key be set and the audio file options button is provided with several time points by the timing quarter-bell of regulation and control on the command input device, start the broadcast of melody, and be set in which time point and play which first melody.When clock arrives certain time point that sets, under the control of timing quarter-bell regulation and control module, audio file reads transmit control module and just read that first melody corresponding to this time point from circumscribed storer or internal memory, send it to afterwards and carry out decoding processing in the audio file decoder module and convert simulated audio signal to, send into power amplifier module amplification rear drive audio output device subsequently and play this melody.
For example, the circumscribed storer can be SD/MMC card or USB flash drive.During use, the user can be stored in SD/MMC card or USB the inside in advance by music or the song that equipment such as computer internet and card reader are liked oneself, SD card or USB are inserted among the corresponding card slot of Multifunctional Digital Clock of the present utility model again, just can put the music on by this machine sowing, also can simply edit music by the button on this Multifunctional Digital Clock control panel, such as, the user can select for use a first excited impassioned music as getting up the alarm clock music, the lullaby before also can selecting melody that a head releives as sleep.Can show selected music numbering on the LCD display, What You See Is What You Get, simple to operate.
Again for example, the audio file decoder module can comprise format audio file decoding modules such as MP3, WAV, WMA and/or RA, can carry out decoding processing to the audio file of forms such as MP3, WAV, WMA and/or RA.
In addition, can also on lcd screen, show year, month, day, week, the time, minute, second, temperature, humidity, air pressure etc.The demonstration of clock can be that digital clock shows and/or pointer clock.As previously mentioned, can set many group alarm clocks as required, alarm clock also can have snooze and background light and light and time-delay closing function.
As a kind of application, Multifunctional Digital Clock of the present utility model also can be designed to a MP3 player that has the compact horn audio amplifier, control circuit has MP3 decoding and power amplification function, can play-over the MP3 music, also can patch the audio output line of products such as common MP3, MP4, mobile phone, laptop computer, use as a small-sized audio amplifier.
Multifunctional Digital Clock of the present utility model also can be provided with automatic shutdown programm, makes its power consumption that does not have holding state, thereby power consumption can be reduced to low-down degree.For example, according to song every days two, 4 fens halfs of per song calculate, and high-quality " AA " dry cell of two joint alkalescence can use more than 8 months.This product can also be equipped with the DC supply socket in addition, as cooperate external power supply to use, a year and a half above (serviceable life of battery is relevant with battery quality, at this electric weight that only can provide according to general high-quality battery as the foundation of calculating) then then can be provided the serviceable life of battery.
Multifunctional Digital Clock of the present utility model is configurable also can not to dispose internal memory, but the socket of SD/MMC card and/or USB is provided, and can use SD/MMC card or USB to make external memorizer.This way can reduce the material cost of this product significantly, and the low capacity SD card of giving with product in the time of can utilizing the user to buy digital product is simultaneously turned waste into wealth; Also can use the USB that popularizes very much as storer, very convenient.
As application, disposed when Multifunctional Digital Clock of the present utility model under the situation of internal memory, can utilize built-in storer to store advertisement user's advertising message in advance, allow this product first playing advertisements content before playing free MP3 music.
Below be example with the MP3 format audio file, illustrate embodiment of the present utility model.It will be understood by those of skill in the art that the utility model is not limited to mp3 file.As previously mentioned, can also dispose the audio decoder module of other form (as forms such as WAV, WMA and/or RA) file in the control circuit of the utility model digital clock, so that the audio file of various different-formats is handled.In addition, know as known to a person skilled in the art, audio decoder module can be constituted also and can be made of software by hardware.Therefore, digital clock of the present utility model only is not limited to and realizes the audio decoder module with hardware mode.
Figure 2 shows that Multifunctional Digital Clock according to the utility model embodiment.As shown in Figure 2, the Multifunctional Digital Clock of the utility model embodiment is actually a kind of electronic calendar clock of playing the MP3 function that possesses, it comprises a main frame and two little audio amplifiers, and the control panel of main frame is provided with earphone jack, and the store memory among the main frame MCU contains the perpetual calendar table of comparisons.And can power by dual power supply (battery or AC power supplies adapter).
Display screen can show: the alarm clock setting of date, week, time, three time points (preestablishing 3 groups of MP3 songs is ring tone), volume, balanced device setting and/or play mode or the like.
Button on the control panel comprises: mode selecting key, key is set, options button, SNOOZE/ backlight key, alarm clock function ON/OFF key, broadcast/time-out/stop key, selected songs key, volume adjusting key and/or balanced device are provided with key etc. up and down.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.
This design of the present utility model makes it can replace traditional sound-track engraving apparatus, substitutes audiotape and CD to insert the SD/MMC card, plays MP3 song and music, and digital clock changes into individual's table and goes up sound equipment.And can preestablish balancer function, the sound field effect in the place that emulation is different.
Fig. 3 is the circuit theory diagrams of the utility model Multifunctional Digital Clock embodiment.As shown in the figure, the utility model Multifunctional Digital Clock can be designed to two MCU structures.The one MCU is master control IC, adopts 8 8-digit microcontrollers (8bits MCU IC).The 2nd MCU adopts 8051 single-chip microcomputers+MP3 DSP IC for cooperation IC.
Wherein:
8 bits MCU IC are master control IC, are responsible for the communication of man-machine interface, detect user's keypress function, and show the LCD message according to functional requirement, and play MP3.
8051 single-chip microcomputers+MP3 DSP IC is attached IC, but it is powerful.Wherein 8051 single-chip microcomputers can be done programming Control, cooperate or the like such as the foundation of balancer function, access Mask ROM and SD/MMC card data, FAT and with the function between master control IC.MP3 DSP can play stored MP3 song in MaskROM and the SD/MMC card.
Store 8051 programs that will operate and predefined MP3 song in the Mask ROM.Do not disposing under the situation of internal memory, 8051 programs that will operate can be stored among the external Mask ROM.The SD/MMC card is for storing the media of MP3 song.
Below in conjunction with Fig. 4 and Fig. 58 8-digit microcontroller IC chips and the 8051 single-chip microcomputers+MP3 DSP IC that one embodiment of the utility model digital clock is adopted simply described.
Fig. 4 is the synoptic diagram according to the 8 8-digit microcontroller IC chips of the utility model Multifunctional Digital Clock embodiment.MCU shown in the figure is 8 microprocessor controllers of a low unit price, high-effect, complete static power saving, uses CMOS technology brand-new design.But it possesses 8 reinforced central microprocessors is arranged, static RAM (SRAM), timer, lcd driver, I/O port program (complex form of Chinese characters in the former book of telling somebody what one's real intentions are is that " programmable Yin Xiao Productivity gives birth to device " converts to and just become like this after simplified, what meaning do not I understand yet? please the inventor explain) audio generator and program ROM.
The system frequency generator adopts two oscillation source designs, increases the applying flexible degree of this chip; It is fit to be used on general consumer products and the client's type product customized, for example wrist-watch, counter, clock perpetual calendar, LCD handheld game device, infra-red remote control emission and reception.Clearly, no matter this kind MCU can allow the programmer give full play to maximum usefulness at the first-class superpower hardware configuration of battery saving mode control, voice output or intelligent sound effect control.
The main performance of this MCU is as follows:
● 8 reinforced central microprocessors
●?ROM
●RAM
● operating voltage: 2.4V ~ 6V
● 10 two-way BIT of CMOS can independently plan the I/O pin
● input interrupts having hardware spring elimination function selecting
● the PULL-UP resistance function that input pin can independently be planned
● timer/counter:
One 8 bit timing device/16 digit counters
8 basic timers
● 5 high-effect interrupt sources are handled:
-external signal is interrupted (edge-triggered)
-basic timer interrupts
-A[7 ~ 0] input port interrupts (transition triggering)-DAC and upgrades data interruption
● 128 layer stacks (256 BYTE)
● two group system frequency generators:
-OSCX: quartz crystal oscillation source 32.768K Hz
-OSC:RC oscillation source 500K ~ 4M Hz
● built-in vibration starts timer
● programmable LCD drives duty control:
-1/8?duty,1/4?bias
-1/4?duty,1/3?bias
● the LCD picture has the compared with control of multistage
● but two groups of program audio generators (PSG) comprising:
-sound producer
-audio generator
-16 sections volume controls
-digital DAC is used for voice/sound control
● 3 kinds of battery saving modes:
-WAIO pattern
-WAI1 pattern
-STP pattern
Fig. 5 is the synoptic diagram according to 8051 single-chip microcomputers of the utility model Multifunctional Digital Clock embodiment+MP3 DSPIC chip.Its main performance is as follows:
● have the single-chip MP3 decoding device that embeds power amplifier module
● follow the 3rd layer of audio decoder of ISO11172-3 and ISO13818-3
● the low 8kbps, 48KHz sampling rate institute of reaching of the MP3 data stream of being supported for the 16KHz sampling rate
The MP3 data stream of supporting is up to 320kbps
● support the WAVE file based on PCM of 8KHz to 48KHz sampling rate
● the hardware-accelerated main interface of SD/MMC card reader
● FAT 16 and FAT32 file system, support SD/MMC card up to 4GB
● the multistage sub-directory file search and the playback of SD/MMC card
● by selecting output pin, two kinds of ROM encoding operation patterns can be arranged
-pattern 0: operate with the ROM coding that is stored among the external program ROM
-pattern 1: operate with the ROM coding that is stored among the inner ROM
● linear ROM interface
● the Data SRAM that cooperates function Should to use
● master/slave spi bus interface, to carry out the function expansion, as being undertaken by firmware upgrade
● digital volume control
● built-in balanced device
● embedded D power-like amplifier directly drives loudspeaker, no capacitance
● embedded stereoscopic sound headphone driver
● outside MOS connects to drive stereo speaker (shared ROM address pin)
● low-power design, the operation of individual system clock
● single supply
● function management pattern and stop mode
● embedded Watch Dog Timer
The music that Multifunctional Digital Clock of the present utility model is play or the acoustical quality of voice, more effective than common alarm clock music (generally be solidificated in MCU the inside) or common digital recording, and plant under can selecting from the internet voluntarily by the user fully, therefore can at utmost satisfy user's individual demand.These 2 all is that common alarm clock is not available, also is the attraction that can attract the consumer.The setting of Multifunctional Digital Clock of the present utility model, programming and use are extremely simple in addition, can accomplish not see that instructions promptly can operate, therefore no matter the old and the children are easy to use.Multifunctional Digital Clock of the present utility model be because can need internal memory, so material cost reduces significantly, and the price of finished product also just can reduce significantly, therefore can become the product of popular style rapidly, and market outlook are wide.

Claims (10)

1, a kind of Multifunctional Digital Clock, the regulation and control command input device, display device, the audio output device that comprise control circuit, link to each other with control circuit; Wherein said control circuit comprises a MCU who is provided with clock generating module, clock demonstration regulation and control module, timing quarter-bell regulation and control module; 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, described control circuit also comprise be connected with a MCU communication port be provided with the 2nd MCU that audio file reads transmit control module, external memorizer interface, the audio file decoder module that is connected with described the 2nd MCU, the power amplifier module that is connected with the output terminal of audio file decoder module, and the audio output device that is connected with the power amplifier module output terminal, described regulation and control command input device also comprises the audio file options button.
2, Multifunctional Digital Clock according to claim 1 is characterized in that, described the 2nd MCU also is connected with internal memory.
3, Multifunctional Digital Clock according to claim 2 is characterized in that, described the 2nd MCU also is provided with equalizer module.
According to claim 1,2 or 3 described Multifunctional Digital Clock, it is characterized in that 4, described external memorizer interface comprises SD card, mmc card interface and/or USB interface.
According to claim 1,2 or 3 described Multifunctional Digital Clock, it is characterized in that 5, described audio file decoder module comprises MP3, WAV, WMA and/or RA format audio file decoding module.
6, Multifunctional Digital Clock according to claim 4, it is characterized in that described regulation and control command input device also comprises following button: in alarm clock function ON/OFF key, snooze/backlight key, broadcast/time-out/stop key, the selection/next melody key, volume adjusting key and/or balanced device key.
7, Multifunctional Digital Clock according to claim 6 is characterized in that, the display screen of described display device also comprises: date viewing area, week viewing area, alarm clock viewing area, volume viewing area, balanced device viewing area and/or play mode viewing area are set.
8, Multifunctional Digital Clock according to claim 4 is characterized in that, a described MCU is 8 8-digit microcontrollers, and described the 2nd MCU comprises single-chip microcomputer and MP3 digital signal processor integrated circ.
9, Multifunctional Digital Clock according to claim 2 is characterized in that, described internal memory comprises mask-type ROM.
10, Multifunctional Digital Clock according to claim 7 is characterized in that, also is connected with temperature and/or humidity sensor in the described control circuit, and described display screen is provided with temperature and/or humidity display district.
CNU2006200144422U 2006-08-30 2006-08-30 Multifunction digital clock Expired - Lifetime CN200976097Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2006200144422U CN200976097Y (en) 2006-08-30 2006-08-30 Multifunction digital clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2006200144422U CN200976097Y (en) 2006-08-30 2006-08-30 Multifunction digital clock

Publications (1)

Publication Number Publication Date
CN200976097Y true CN200976097Y (en) 2007-11-14

Family

ID=38902381

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2006200144422U Expired - Lifetime CN200976097Y (en) 2006-08-30 2006-08-30 Multifunction digital clock

Country Status (1)

Country Link
CN (1) CN200976097Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103019084A (en) * 2013-01-09 2013-04-03 深圳市强大实业有限公司 Multifunctional clock with weather forecasting and warning function
CN105005192A (en) * 2015-07-03 2015-10-28 烟台北极星石英钟有限公司 Pointer-type multifunctional intelligent clock

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103019084A (en) * 2013-01-09 2013-04-03 深圳市强大实业有限公司 Multifunctional clock with weather forecasting and warning function
CN105005192A (en) * 2015-07-03 2015-10-28 烟台北极星石英钟有限公司 Pointer-type multifunctional intelligent clock
CN105005192B (en) * 2015-07-03 2018-05-22 烟台北极星石英钟有限公司 A kind of pointer type intelligent clock

Similar Documents

Publication Publication Date Title
CN206497597U (en) A kind of bracelet for vocality study
CN1996171A (en) Alarm clock and control method therefor
CN200976097Y (en) Multifunction digital clock
CN102855923A (en) Intelligent music play device
CN207249379U (en) A kind of bell-controlling radio of belt variable color atmosphere lamp wakes up lantern clock
US20040022130A1 (en) Multifunction wristwatch
CN203643755U (en) Anti-snooze student alarm clock with English learning function
CN109782575A (en) A kind of multi-functional alarm clock
CN205491076U (en) Intelligence sound scene bedroom stereo set based on bluetooth
CN101604485A (en) A kind of learning device and timing player method thereof
CN207502939U (en) A kind of multi-functional alarm clock
CN202275573U (en) Digital photo frame with voice time-telling function
CN200976099Y (en) Ring tone changeable alarm clock
CN202258112U (en) Small-sized integrated information processing system
CN210078848U (en) Multifunctional piano toy
CN201215263Y (en) Bed lamp with acoustics
CN204440028U (en) A kind of bed-side alarm clock facilitating observing time
CN201327572Y (en) Electronic alarm clock
CN2662306Y (en) Rolling MP3 multi-function watch
CN201048050Y (en) Learning machine capable of fast selecting songs
CN205080847U (en) Music ephemeris in ten thousand years
CN1331075C (en) Digital linguistic studying apparatus
CN201681617U (en) Sectional type presetting recorder
CN201142230Y (en) Voice device with recording playback and timing broadcast function
CN201464835U (en) Recordable electronic voice reminder

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20071114

EXPY Termination of patent right or utility model