TWI496071B - Portable virtual printing device - Google Patents

Description

Portable virtual printer

The present invention is a portable device, and more particularly to a portable analog printing device that is virtually printed and encrypted.

With the development of technology, many of the early information on paper as the main medium of transmission has gradually failed to meet and meet the current needs. In addition to the problem of having to use a large amount of paper in the case of excessive information, there is still a lot of information that cannot be used. This presentation presents the desired effect and requires a special reading device to be properly displayed, as well as other problems such as confidentiality and the like. Taking medical information as an example, medical informationization has become a necessary part of medical institutions and people's daily life, and medical diagnosis materials are particularly important as a basis for medical judgment, such as medical images, physiological test reports, medical records, etc. The main reference for diagnosing patients. However, the current information such as medical images, reports or medical records is still mainly using printed paper as the main transmission medium. It is not only inefficient and consumes a lot of valuable resources, but also has considerable harm to the environment.

Although other electronic media (such as optical discs) are already very common, they cannot be promoted to the information transmission with the privacy requirements of personal information. The main reason is that the protection and integrity of the information transmitted by these media cannot be ensured. Cost increases and environmental damage issues. For example, a new generation of optical discs can further improve the diagnosis, although it can store a variety of information and a large amount of information. The accuracy of the break, but the CD is generally difficult to save, and the information protection on the disc is difficult and difficult to repeat or update the reading and writing. It is often caused by the use of a large amount of plastic materials to cause more environmental problems. Rickets. In addition, the flash drive may be a relatively friendly product, but there are still many doubts about using the general flash drive to transmit information, such as easy poisoning, insufficient information security, easy to change, and poor compatibility between software and hardware. problem.

Finding simpler, more convenient, environmentally friendly and reusable mobile storage methods, reducing the use of medical consumables, reducing pollution, avoiding chemical contamination, ink, optical disc supplies, film consumables, etc., thereby reducing the burden of inspection for patients And the hospital operating costs, while reducing environmental pollution has always been one of the content of the applicant's research.

In order to solve the technical problems of pollution, inconvenience and information security caused by the current mainstream information transmission technology, the present invention proposes to use a virtual printer to make the important information to be transmitted in a virtual column in a form that cannot be changed with information confidentiality. The printing method is stored on the flash drive, so as to achieve a complete file, portable and uniform format portable storage device, solving many problems of the prior art.

The present invention provides a portable virtual printer comprising a main controller and a hot-swappable transmission interface and a storage unit electrically connected to the main controller, the main controller comprising an in-line toughness a storage and conversion program and a virtual printer driver for communicating with one of the external computers, the virtual printer driver establishing an information transfer agreement with the external computer, the main controller The hot swappable transmission interface receives a print command of the computer output and executes the print and convert program to print the print The command is converted to an output print file and stored in the storage unit.

The printing and conversion program includes an encryption means for encrypting the converted output print file and storing the same in the storage unit.

The encryption means may be password encryption or encryption of public and private keys, and the encryption operation is performed according to a private key, and the data in the output print file is accessed through the encryption key value comparison to determine the corresponding permission. The key is used as the primary encrypted value in the encryption operation.

The primary controller stores the public key and the private key of the encryption means in the embedded firmware and a specific one of the storage units.

The memory block storing the private key is hidden.

The hot-swappable transmission interface is a USB, SATA, FireWire or Thunderbolt.

The storage unit is a flash memory (such as NAND Flash), a solid state hard disk or a micro hard disk.

The storage unit NAND flash flash memory includes a plurality of different memory blocks, wherein the memory block including the last logical unit is designated as hidden and/or encrypted for storing and storing the private key.

The output print file is in an uneditable file format.

Based on the foregoing description, the present invention has the following technical features and achieves the following technical effects:

1. Provide a portable and portable file transfer medium with simple confidentiality and security, so that different users can print and store specific information in a specific format through printing, so that the format is fixed to avoid the technical effect of tampering.

2. Significantly reduce the demand for paper and solve the problems and problems of the information transmission of existing paper.

3. A large amount of information can be stored, whether it is a general sensitive document or an X-ray image or a tomographic image that requires a high resolution, and can be properly stored by using the technical features of the present invention.

4. The firmware and the storage space respectively store the public and private keys required for encryption, so that the encryption performance is further reduced and the risk of cracking is greatly reduced.

5. Different programs that can open the output print file are stored in the storage unit, so that the user who passes the identity authentication can directly open the corresponding file to achieve the technical effect of convenient use.

6. The invention can be applied to relevant important information with personal information, such as personal medical test report, etc., not only can provide users with no paper, can view files and other conveniences at any time, and the user can directly output any graphic file to the present. The device is easy to save, and the related information can be properly recorded and saved. The information of the authorized part of the hospital can be digitized, strictly comply with the domestic and international standards in the relevant fields, and can fully display the various examination and diagnosis results of the patient, and can be reused, It is quick and convenient, which reduces the inspection burden and hospital operating costs of the majority of patients, while reducing environmental pollution.

10‧‧‧Master controller

20‧‧‧ storage unit

30‧‧‧Hot-swappable transmission interface

50‧‧‧ computer

The first figure is a block diagram of a system in accordance with a preferred embodiment of the present invention.

Please refer to the first figure, which is a preferred embodiment of the portable virtual printer of the present invention, which includes a main controller 10 and a hot pluggable transmission interface 20 electrically connected to the main controller 10 respectively. And a storage unit 30. The type of the main controller 10 is not limited, and may have a micro processing operation and control capability. The processing circuit, the main controller 10 of the embodiment is a control circuit with ARM9 as the main embedded processing architecture. The main controller 10 includes an embedded firmware, which stores a printer and a computer 50 for processing a print and conversion program, and a virtual printer driver. After the embodiment is electrically connected to the computer 50, The computer 50 automatically recognizes that the embodiment is a virtual printer and establishes a related communication protocol. The printing and converting program includes accepting the printing command of the computer 50, and converting the received waiting printing information into an output printing file, the type of the output printing file is not limited, and can be editable or non-editable. PDF or JPG or TIFF and other formats.

The printing and converting program can include an encryption means for encrypting and storing the converted output print file. The encryption means may be password encryption or encryption of public and private keys, such as AES (Advanced Encryption Standard), which performs AES operation according to a private key, and prints the file by comparing the encryption key value to determine the corresponding permission. In the data access, the private key is used as the primary encrypted value in the AES operation. AES is a symmetric key cryptography standard, including three block encoders, AES-128, AES-192 and AES-256. The AES chip has plaintext embedded in the block encoder (P1, P2, P3,. .....Pn), after the AES encryption operation, the ciphertext (C1, C2, C3, ... Cn) is output, and the decryption process needs to input the encrypted value (ie, the private key) to generate the original plaintext.

The hot-swappable transmission interface 20 is a hot-swappable transmission interface, such as USB 1.1~3.0, SATA, FireWire, Thunderbolt, etc. The hot-swappable transmission interface 20 is USB transmission in this embodiment. The page is used as a connection between the computer 50 and the signal transmission in this embodiment. The type of the storage unit 30 is not limited, and can be any type that can be quickly and repeatedly read and written. And the non-temporary memory, such as a flash memory (such as NAND Flash), a solid state hard disk, a mini hard disk, etc., the storage unit 30 can be divided into a plurality of memory blocks, and the storage unit 30 stores the output print file.

Further, the main controller 10 may store the public key and the private key of the encryption means in the embedded firmware and the specific memory block in the storage unit 30, and the memory block is based on the memory block. Different storage units 30 may be different. For example, when the storage unit 30 is a NAND flash flash memory, it includes a plurality of different memory blocks, including the last logical unit (LUN). The memory block is designated as hidden and/or encrypted for storing and storing the private key; after the user inputs the correct private key password, the main controller 10 reads the public and private keys respectively for different storage devices or components, thereby Achieve more confidentiality.

In use, the user can electrically connect the hot-swappable transmission interface 2 to the computer 50, and the computer 50 reads the necessary driver information of the embedded firmware of the main controller 10, so that the user The computer 50 recognizes that the embodiment is a virtual printer; the main controller 10 receives information such as the printing command of the computer 50 from the hot-swappable transmission interface 20 by the printing and conversion program, and generates an output print. The file is stored in the storage unit 30.

Further, the program for opening the output print file in the storage unit 30 is an application for completing the encryption by the encryption program. Therefore, after another user connects to the embodiment through another access device, the appropriate After the identity verification, the embedded application can be opened by the embedded application, so that different users who can pass the identity verification can open the printed file without installing any program on the computer. Since the printed file can be set to a non-editable format, the risk of tampering with important information can be avoided.

Based on the foregoing description, the present embodiment has the following technical features and achieves the following technical effects:

1. Provide a portable and portable file transfer medium with simple confidentiality and security, so that different users can print and store specific information in a specific format through printing, so that the format is fixed to avoid the technical effect of tampering.

2. Significantly reduce the demand for paper and solve the problems and problems of the information transmission of existing paper.

3. A large amount of information can be stored, whether it is a general sensitive document or an X-ray image or a tomographic image that requires a high resolution, and can be properly stored by using the technical features of the present invention.

4. The firmware and the storage space respectively store the public and private keys required for encryption, so that the encryption performance is further reduced and the risk of cracking is greatly reduced.

5. Different programs that can open the output print file are stored in the storage unit, so that the user who passes the identity authentication can directly open the corresponding file to achieve the technical effect of convenient use.

6. The invention can be applied to relevant important information with personal information, such as personal medical test report, etc., not only can provide users with no paper, can view files and other conveniences at any time, and the user can directly output any graphic file to the present. The device is easy to save, and the related information can be properly recorded and saved. The information of the authorized part of the hospital can be digitized, strictly comply with the domestic and international standards in the relevant fields, and can fully display the various examination and diagnosis results of the patient, and can be reused, It is quick and convenient, which reduces the inspection burden and hospital operating costs of the majority of patients, while reducing environmental pollution.

10‧‧‧Master controller

20‧‧‧ storage unit

30‧‧‧Hot-swappable transmission interface

50‧‧‧ computer

Claims (7)

A portable virtual printer comprising a main controller and a hot-swappable transmission interface and a storage unit electrically connected to the main controller, the main controller comprising an in-line firmware The internal storage can communicate with one of the external computers to print and convert the program and a virtual printer driver, and the virtual printer driver establishes an information transfer agreement with the external computer, and the main controller transmits the heat through the The plug-in transmission interface receives a print command of the computer output, and executes the print and convert program to convert the print command into an output print file and stores the print command in the storage unit, wherein: the print and convert program includes a The encryption means is configured to encrypt the converted output print file and store the file in the storage unit; the main controller stores the public key and the private key of the encryption means separately for the embedded firmware and the storage a specific one of the memory blocks in the unit; and the storage unit stores a program for opening the output print file, and the program is an application that performs encryption by the encryption program. For example, in the patent application scope 1 portable virtual printer, the encryption means can encrypt the password or public and private key, and perform encryption operation according to a private key, and determine the corresponding permission by encrypting the key value comparison. Access to the data in the output print file, which is the primary encrypted value in the encryption operation. For example, in the portable virtual printer of claim 2, the memory block storing the private key is hidden. For example, in the patented scope 1 or 2 or 3 portable virtual printer, the hot pluggable transmission interface is a USB, SATA, FireWire or Thunderbolt. For example, in the patent application scope 4 portable virtual printer, the storage unit is a flash memory (such as NAND Flash), a solid state hard disk or a micro hard disk. For example, in the fifth application of the portable virtual printer, the storage unit NAND flash flash memory includes a plurality of different memory blocks, wherein the memory block including the last logical unit is designated as hidden and / or encryption is used to store the private key. For example, in the sixth paragraph of the patent application, a portable virtual printer, the output print file is a non-editable file format.