CN100367748C - Conversion module for memory card to projector - Google Patents
Conversion module for memory card to projector Download PDFInfo
- Publication number
- CN100367748C CN100367748C CNB2003101161356A CN200310116135A CN100367748C CN 100367748 C CN100367748 C CN 100367748C CN B2003101161356 A CNB2003101161356 A CN B2003101161356A CN 200310116135 A CN200310116135 A CN 200310116135A CN 100367748 C CN100367748 C CN 100367748C
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- projector
- image data
- order
- memory card
- microprocessor
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Abstract
The present invention provides a converting module for a memory card to a projector. The converting module is arranged on a projector to make the projector directly read image data stored in a memory card through the converting module under the precondition that the self system structure is not changed, and the image data are played. In addition, signal transmission is carried out between a projector and the converting module by using an I2C communication protocol, and accordingly, the design cost of soft hardware can be reduced.
Description
Technical field
The present invention is a kind of modular converter, particularly a kind of modular converter that is applied to the image data conversion between projector and memory card.
Background technology
Universal day by day along with digital camera, society all gradually custom with digital camera recording image data.The principle of digital camera is after the video conversion of will shoot with video-corder is digitized electronic signal, be stored in the flash memory in the digital camera, not only stored image data is many than the egative film of traditional camera, and when the user will watch image data, only need the image data in the memory card is transferred on the specific display unit and can watches in advance, can not see image and do not need as traditional camera, egative film to be developed.
Just, the memory card of digital camera and the coffret between display unit often need just can carry out the transmission of image data through extra design of hardware and software, this not less than the complexity that increases system with use not convenient.
Especially when user's desire plays back the image data in the memory card by projector, need earlier memory card to be connected to a personal computer that is provided with the memory card coffret, read image data in the memory card by this personal computer again, by personal computer image data is transferred to projector then and carry out broadcast, so work flow is not only complicated, also is very not convenient for the user.
In view of this, as if this function modoularization on the display that image data can be read into projection from memory card, again this module is arranged on the display, so not only can simplify and cause the complicated of system because of this appends function, can also not change under the previous system framework, fast this function importing is being applied on the existing display.
Summary of the invention
Main purpose of the present invention is provides a kind of modular converter, makes projector can be directly read the image data that is stored in the memory card to play by this modular converter.
To achieve these goals, technical scheme of the present invention is achieved in that a kind of modular converter, it is characterized in that, be connected to a projector and a memory card respectively, the image data that this projector is read by this modular converter be stored in this memory card is play to carry out, it includes: an interface processing unit is connected to this memory card, in order to read the stored image data of this memory card; One register is connected to this interface processing unit, in order to store the image data that this interface processing unit is read; One microprocessor is connected to this register and this projector respectively, in order to receiving the order that this projector exports, to being stored in after image data in this register handles, exporting this image data to this projector and carries out and play; And a memory, be connected to this microprocessor, in order to store a software program, make this microprocessor carry out the processing and the transmission of this image data according to this software program.
By interface processing unit of the present invention is connected to a memory card with usb bus, make the form that the image data that is stored in the memory card can serial data transfer to the interface processing unit, by the interface processing unit serial data is converted to again and transfers to register after the parallel data and store.
At this moment, receive the order that projector sent by the microprocessor that is connected to projector again, this order is in order to resolution, renewal frequency and the broadcast mode etc. of definition image data, then microprocessor promptly reads the software program that is stored in the memory according to the order of projector, with to being stored in after image data in the register handles accordingly, transferring to projector again and carry out and play.
Carry out the signal transmission by the bus of I2C between projector and microprocessor, this I2C bus includes a clock bus (Serial CLock, SCL) and a data/address bus (Serial DAta, SDA) form, this clock bus is in order to the transmission of transmit clock signal with control data, and this data/address bus is then in order to transmission data and order.
Description of drawings
Fig. 1 is a circuit box schematic diagram of the present invention.
Wherein, description of reference numerals is as follows:
100 modular converters
101 projectors
102 memory cards
103 interface processing units
104 registers
105 microprocessors
106 memories
The 107USB bus
108 clock bus
109 data/address buss
Embodiment
For purpose of the present invention, structural feature and function thereof are further understood, existing conjunction with figs. is described in detail as follows:
Please refer to shown in Figure 1, be circuit box schematic diagram of the present invention, as shown in the figure: modular converter 100 of the present invention, be arranged in the projector 101, or as an independent unit that operates, to be connected with projector 101 by a connecting interface, projector can connect a memory card 102 by this modular converter 100, then projector 101 can read stored image data in the memory card 102 by this modular converter 100, and the image data that reads is come out by projector's 101 projections.
This memory card 102, be plugged on the digital camera (not shown), with the taken image data of store digital camera, this memory card 102 can be compact flash (Compact Flash), carry-on dish (Micro Drive), smart card (Smart Media), memory stick (Memory Stick), Security Digital (SD) (Secure Digital, be called for short SD) or multimedia card (Multi Media Card is called for short MMC) etc.
This modular converter 100 is made up of an interface processing unit 103, a register 104, a microprocessor 105 and a memory 106.
This interface processing unit 103 is connected to memory card 102, in order to reading the stored image data of memory card 102, and the image data that reads is stored into register 104.And this interface processing unit 103 utilizes usb bus 107 and memory 102 to carry out transfer of data, make the stored image data of memory card 102 transfer to interface processing unit 103 by usb bus 107 with the form of serial data, after by interface processing unit 103 serial data that receives being converted to parallel data again, be stored in register 104.
This register 104 is connected to interface processing unit 103, the image data that is read from memory card 102 in order to storage interface processing unit 103.
This microprocessor 105, be connected to register 104, in order to carry out the transmission and the conversion of process image data, this microprocessor 105 can be 8051 single-chip microcomputer or 8086 single-chip microcomputer, read the image data that is stored in register 104 by this microprocessor 105, back output again is correspondingly processed image data.
This memory 106 is connected to microprocessor 105, in order to store a software program, makes microprocessor 105 can carry out the transmission and the processing of image data according to this software program.
This projector 101 is connected with the microprocessor 105 of modular converter 100, and projector 101 utilizes I2C bus and microprocessor 105 to carry out transfer of data, promptly by the microprocessor 105 of these projector's 101 output commands to modular converter 100, microprocessor 105 is promptly according to the order that receives, read the relevant software programs that memory 106 stores, thereby after according to software program the image data that reads from memory card 102 being handled, again image data is transferred to projector 101 and carry out and play.
And the order that projector 101 is exported, in order to the renewal frequency of resolution, the image data of definition image data and the broadcast mode of image data (as play forward, broadcast, loop play etc. backward).
This I2C bus includes a clock bus (Serial CLock, SCL) 108 and one data/address bus (Serial DAta, SDA) 109 compositions, this clock bus 108 are in order to the transmission of transmit clock signal with control data, and this data/address bus 109 is then in order to transmission data and order.
Thereby, modular converter 100 of the present invention is arranged in the projector 101, and the microprocessor 105 of modular converter 100 is connected with projector 101, this moment memory card 102 is connected to the interface processing unit 103 of modular converter 100, then projector 101 can give an order to the microprocessor 105 of modular converter 100, command processor 105 reads the image data of memory card 102, and defines resolution, renewal frequency and the broadcast mode etc. of the image data that reads.
And the data and the command transfer pattern of 105 of projector 101 and microprocessors, be when projector 101 and 105 of microprocessors are failure to actuate, clock bus 108 and data/address bus 109 all maintain high potential, when projector 101 desires output command to microprocessor 105, earlier send electronegative potential to microprocessor 105 at data/address bus 109, through after a bit of time, again clock bus 108 is become electronegative potential, this is that projector's 101 output commencing signals are to microprocessor 105.Then, the address signal of projector 101 output microprocessors 105 is to microprocessor 105, engages in the dialogue with it so that microprocessor 105 is determined projector 101.
If microprocessor 105 is correctly received the beginning and the address signal of projector 101, then microprocessor 105 promptly sends one and confirms that (Acknowledge) signal to projector's 101 expressions correctly receive, this moment, projector 101 maintained high potential with data/address bus 109, when microprocessor 105 is confirmed data/address bus 109 was pulled to electronegative potential; If microprocessor 105 fails correctly to receive the signal of projector 101, then microprocessor 105 promptly is failure to actuate, and makes data/address bus 109 maintain high potential.
After treating that projector 101 determines that microprocessors 105 have been received signal, transmission that can the initiation command signal, this command signal is relevant informations such as the resolution, renewal frequency of definition image data.
After projector 101 finishes transfer of data with microprocessor 105, promptly earlier clock bus 108 is released into high potential, again data/address bus 109 is released into high potential through after a bit of time, promptly finish the transfer of data of 105 of projector 101 and microprocessors.
In addition, modular converter 100 of the present invention also can be applied to various video display except that can being arranged on projector 101, as LCD, plasma display, CRT etc.
Though the present invention with aforementioned preferred embodiment openly as above; so it is not in order to limit practical range of the present invention; the equalization that those skilled in the art is done in not breaking away from spirit of the present invention and patent protection scope changes and modifies; all should be scope of patent protection of the present invention and contain, therefore scope of patent protection of the present invention should be as the criterion with the protection range that claims were defined.
Claims (8)
1. a modular converter is characterized in that, is connected to a projector and a memory card respectively, and the image data that this projector is read by this modular converter be stored in this memory card is play to carry out, and it includes:
One interface processing unit is connected to this memory card, in order to read the stored image data of this memory card;
One register is connected to this interface processing unit, in order to store the image data that this interface processing unit is read;
One microprocessor is connected to this register and this projector respectively, in order to receiving the order that this projector exports, to being stored in after image data in this register handles, exporting this image data to this projector and carries out and play; And
One memory is connected to this microprocessor, in order to store a software program, makes this microprocessor carry out the processing and the transmission of this image data according to this software program.
2. modular converter as claimed in claim 1, it is characterized in that, this interface processing unit is connected to this memory card by a usb bus, then the stored image data of this memory card transfers to this interface processing unit with the form of serial data, exports this register to after by this interface processing unit this image data being converted to parallel data again.
3. modular converter as claimed in claim 1 is characterized in that, this microprocessor is 8051 single-chip microcomputer.
4. modular converter as claimed in claim 1 is characterized in that, this microprocessor is 8086 single-chip microcomputer.
5. modular converter as claimed in claim 1 is characterized in that, this microprocessor is connected to this projector by an I2C bus.
6. modular converter as claimed in claim 1 is characterized in that the order that this projector exported is in order to define the resolution of this image data.
7. modular converter as claimed in claim 1 is characterized in that the order that this projector exported is in order to define the renewal frequency of this image data.
8. modular converter as claimed in claim 1 is characterized in that the order that this projector exported is in order to define the broadcast mode of this image data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101161356A CN100367748C (en) | 2003-11-17 | 2003-11-17 | Conversion module for memory card to projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101161356A CN100367748C (en) | 2003-11-17 | 2003-11-17 | Conversion module for memory card to projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1620093A CN1620093A (en) | 2005-05-25 |
| CN100367748C true CN100367748C (en) | 2008-02-06 |
Family
ID=34760592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101161356A Expired - Fee Related CN100367748C (en) | 2003-11-17 | 2003-11-17 | Conversion module for memory card to projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100367748C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2425464Y (en) * | 2000-05-23 | 2001-03-28 | 上海证威科技实业发展有限公司 | Viewdata TV receiving card for ISA bus |
| EP1300753A1 (en) * | 2000-06-14 | 2003-04-09 | Matsushita Electric Industrial Co., Ltd. | Image outputting device from mobile storage medium |
| JP2003302959A (en) * | 2002-04-08 | 2003-10-24 | Sharp Corp | Image output device and its image signal adjusting method |
-
2003
- 2003-11-17 CN CNB2003101161356A patent/CN100367748C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2425464Y (en) * | 2000-05-23 | 2001-03-28 | 上海证威科技实业发展有限公司 | Viewdata TV receiving card for ISA bus |
| EP1300753A1 (en) * | 2000-06-14 | 2003-04-09 | Matsushita Electric Industrial Co., Ltd. | Image outputting device from mobile storage medium |
| JP2003302959A (en) * | 2002-04-08 | 2003-10-24 | Sharp Corp | Image output device and its image signal adjusting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1620093A (en) | 2005-05-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20131117 |