CN103377567A - Method and device for reading digital electronic book - Google Patents
Method and device for reading digital electronic book Download PDFInfo
- Publication number
- CN103377567A CN103377567A CN2012101209890A CN201210120989A CN103377567A CN 103377567 A CN103377567 A CN 103377567A CN 2012101209890 A CN2012101209890 A CN 2012101209890A CN 201210120989 A CN201210120989 A CN 201210120989A CN 103377567 A CN103377567 A CN 103377567A
- Authority
- CN
- China
- Prior art keywords
- electronic book
- digital
- reading
- described digital
- book
- 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.)
- Pending
Links
Images
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention discloses a method and device for reading a digital electronic book, and relates to the field of data processing. In order to protect the copyright of the digital electronic book while the digital electronic book is guaranteed to be normally read, according to the technical scheme, the method includes the steps of receiving a digital electronic book opening command input by a user, when a device bound with the digital electronic book is determined to be a current reading device, obtaining reading permission configuration information of the digital electronic book from a certificate file of the digital electronic book, and when the digital electronic book is determined not to beyond a reading permission deadline according to the reading permission configuration information, displaying information in a book file of the digital electronic book for the user. The method and device for reading the digital electronic book are applicable to electronic book reading.
Description
Technical field
The present invention relates to data processing field, relate in particular to a kind of reading method and device of digital and electronic book.
Background technology
At present, various mobile terminal devices have appearred on the market, such as mobile phone, palm PC, mobile Internet access terminal etc.The user uses the anywhere or anytime digital contents such as read books, magazine, animation, Newspaper of these mobile terminal devices.In addition, the digital and electronic book is because of reasons such as costs, and its price is far below the price of traditionally on paper books, and along with the use of these mobile terminal devices is popularized, this behavior of reading digital and electronic book is also more and more universal, and the readership of digital and electronic book is also more and more huger.
In realizing process of the present invention; the inventor finds that there are the following problems at least in the prior art: the digital and electronic book that the active user buys can not limit inferior use indefinite duration after purchase; the permanent mode of authorizing of this one-time-consumption; may cause the situation generations such as mutual copy, be unfavorable for the protection of digital and electronic book copyright.
Summary of the invention
Embodiments of the invention provide a kind of reading method and device of digital and electronic book, can be when guaranteeing that the digital and electronic book is normally read, and the copyright of protection digital and electronic book.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of reading method of digital and electronic book comprises:
Receive the OPEN of the digital and electronic book of user's input;
When determining that equipment with described digital and electronic book binding is current reading device, from the certificate file of described digital and electronic book, obtain the reading permission configuration information of described digital and electronic book;
When determining that according to described reading permission configuration information described digital and electronic book surpass to be read approval time limit, show the information in the book file of described digital and electronic book to described user.
A kind of reading device of digital and electronic book comprises:
The command reception unit is for the OPEN of the digital and electronic book that receives user's input;
The equipment judging unit is used for judging whether the equipment of binding with described digital and electronic book is current reading device;
Information acquisition unit is used for judging the equipment bound with described digital and electronic book when carrying out the equipment of described OPEN at described equipment judging unit, obtains the reading permission configuration information of described digital and electronic book from the certificate file of described digital and electronic book;
The time limit judging unit for the reading permission configuration information of obtaining according to described information acquisition unit, judges whether described digital and electronic book surpasses the reading approval time limit;
The books display unit is used for judging that at described time limit judging unit described digital and electronic book surpasses when reading approval time limit, shows the information in the book file of described digital and electronic book to described user.
Reading method and the device of the digital and electronic book that the embodiment of the invention provides, the OPEN of the digital and electronic book by receiving user's input, when determining that equipment with described digital and electronic book binding is current reading device, from the certificate file of described digital and electronic book, obtain the reading permission configuration information of described digital and electronic book, and when determining that according to described reading permission configuration information described digital and electronic book surpass to be read approval time limit, show the information in the book file of described digital and electronic book to described user.Therefore, can avoid the digital and electronic book after purchase, not limit inferior use indefinite duration, the generation of the situations such as mutual copy, thus can be when guaranteeing that the digital and electronic book is normally read, the copyright of protection digital and electronic book.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use was done a simply introduction during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic flow sheet of the reading method of a kind of digital and electronic book of passing through of the embodiment of the invention;
Fig. 2 is the formation synoptic diagram of the reading device of a kind of digital and electronic book of passing through of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
In order to protect the copyright of digital and electronic book when guaranteeing that the digital and electronic book is normally read, the embodiment of the invention provides a kind of reading method of digital and electronic book, as shown in Figure 1, comprising:
101, reading device receives the OPEN of the digital and electronic book of user's input;
Wherein, described reading device comprises mobile phone, palm PC, mobile Internet access terminal etc.
The user need to sell systems buying digital and electronic book from the digital and electronic book before reading the digital and electronic book, obtain e-book file and certificate file after paying.Wherein, way of paying comprise by the paying of SP gateway, Web bank's paying, rechargeable card paying etc.Be specifically as follows, can sell the reading payment request that system sends the digital and electronic book to the digital and electronic book by this reading device, after the digital and electronic book sells the reading payment request that system accepted this digital and electronic book, this reading device can sell book file and the certificate file that system receives this digital and electronic book from described digital and electronic book, and stores book file and the certificate file of this digital and electronic book.
When the digital and electronic book of storing in the user wants reading device was read, the user can input the OPEN that it wants the digital and electronic book read to this reading device.
102, reading device obtains the reading permission configuration information of described digital and electronic book from the certificate file of described digital and electronic book when determining that equipment with described digital and electronic book binding is current reading device;
For example, reading device is according to the Information generation key of himself, at the key of the decruption key of determining described digital and electronic book for generating, in the time of namely can correctly deciphering the certificate file of described digital and electronic book with the key that generates, the equipment of definite and described digital and electronic book binding is the reading device that current execution reading operates.Then, from the certificate file of described digital and electronic book, obtain the reading permission configuration information of described digital and electronic book.
In addition, also can sell the database data processing power of system when strong at the digital and electronic book, will deposit in the information of the equipment of described digital and electronic book binding in the database that the digital and electronic book sells system.Reading device can sell system by accessing digital e-book, knows whether it is the equipment of binding with described digital and electronic book.
103, reading device is when determining that according to described reading permission configuration information described digital and electronic book surpass to be read approval time limit, shows the information in the book file of described digital and electronic book to described user.
For example, can determine to read zero-time and reading termination time according to described reading permission configuration information, wherein, the described reading termination time can not made the upper limit and limit.And sell the system acquisition current system time from the digital and electronic book, the current system time of determining to obtain greater than reading zero-time, and when reading the termination time, determine that described digital and electronic book surpasses to read approval time limit.Then, show information in the book file of described digital and electronic book to described user.
Perhaps, also can determine to have read cumulative time and maximum the reading cumulative time according to described reading permission configuration information, wherein, describedly maximum read the cumulative time and can be designated as one more than or equal to 1 positive integer, also can not make the upper limit and limit, and read the cumulative time and maximum read the cumulative time can be take minute as unit.When determining that having read the cumulative time reads the cumulative time less than maximum, determine that described digital and electronic book surpasses the reading approval time limit.Then, obtain the information in the book file of described digital and electronic book, show the information of obtaining to described user, and to carrying out timing reading time.When the user withdraws from described digital and electronic book, current timing result is deposited in the described certificate file as reading the cumulative time.
In addition, described reading permission configuration information can also comprise the summary info of described digital and electronic book.The certificate file summary info is incorrect detecting, and when distorting such as the summary info process, forbids that the user reads this digital and electronic book.During with time period mode (namely comprise read zero-time and read the termination time) and cumulative time mode (namely comprise and read cumulative time and maximum the reading cumulative time) record, certificate file form difference is as follows in described reading permission configuration information:
The time period mode:
The cumulative time mode:
Illustrate:
ID is the numbering of digital and electronic book; Price is this purchasing price of digital and electronic book; Publisher is the publishing house of digital and electronic book;
ContentKey is the unique identification of the certificate file of digital and electronic book, and this content has reflected the binding relationship of this digital and electronic book with equipment;
CopyCount be this digital and electronic book the mandate number;
Type is books reading permitted hours segment type, in the time of type=0 for by from certain year in such a month, and on such a day by certain year in such a month, and on such a day mode calculate the reading permitted hours, in the time of type=1, calculate by the cumulative time and read permitted hours;
TimeBegin: in the time of type=0 for by from certain year in such a month, and on such a day by certain year in such a month, and on such a day mode calculate to read permitted hours, timeBegin value is this rear reading from date of paying; Content is empty in the time of type=1.
TimeEnd: in the time of type=0 for by from certain year in such a month, and on such a day by certain year in such a month, and on such a day mode calculate the reading permitted hours, timeEnd value is paid the afterwards reading date of expiry for this; Content is empty in the time of type=1.
ReadTime: content is empty when type=0; When type=1 content be this pay after maximum the reading cumulative time, unit be (minute).
MAC Hash is summary info, adopts SHA1.SHA1 can produce one 160 eap-message digest.When receiving certificate file, this eap-message digest can be used for the integrality of verification msg.In the process of transmission, data change possibly, so at this time will produce different eap-message digests.SHA1 has following characteristic: cannot be from eap-message digest recovery information; Two different message can not produce same eap-message digest.
Recharge: be charging information again, time represents that one is supplemented with money the time period when type=0; When type=1, time represents to supplement with money the number of minutes, is 24x60x10 (10 days) such as 1440; Re_price represents to supplement with money price.
In addition, when determining that according to described reading permission configuration information described digital and electronic book surpasses the reading approval time limit, can sell the reading request of continuing to pay dues that system sends described digital and electronic book to the digital and electronic book, and sell the new certificate file information of system acquisition from described digital and electronic book, according to the information in the described new described certificate file of certificate file information updating.Certainly, after the request of also can continuing to pay dues in the reading that the system that sells to the digital and electronic book sends described digital and electronic book, sell the new certificate file of system acquisition from described digital and electronic book, new certificate file is replaced the old certificate file of storage.
The reading method of the digital and electronic book that the embodiment of the invention provides, the OPEN of the digital and electronic book by receiving user's input, when determining that equipment with described digital and electronic book binding is current reading device, from the certificate file of described digital and electronic book, obtain the reading permission configuration information of described digital and electronic book, and when determining that according to described reading permission configuration information described digital and electronic book surpass to be read approval time limit, show the information in the book file of described digital and electronic book to described user.Therefore, can avoid the digital and electronic book after purchase, not limit inferior use indefinite duration, the generation of the situations such as mutual copy, thus can be when guaranteeing that the digital and electronic book is normally read, the copyright of protection digital and electronic book.
With said method accordingly, the embodiment of the invention also provides a kind of reading device of digital and electronic book, as shown in Figure 2, comprising:
Time limit judging unit 204 for the reading permission configuration information of obtaining according to described information acquisition unit 203, judges whether described digital and electronic book surpasses the reading approval time limit;
Further, the reading device of described digital and electronic book specifically also comprises:
The payment request transmitting element is used for selling the reading payment request that system sends the digital and electronic book to the digital and electronic book;
The file acquisition unit is for the book file and the certificate file that sell the described digital and electronic book of system acquisition from described digital and electronic book.
Further, described equipment judging unit 202 comprises:
Key generates subelement, is used for the Information generation key according to current reading device;
Equipment is determined subelement, is used for when the decruption key of determining described digital and electronic book is the key that generates, and the equipment of definite and described digital and electronic book binding is current reading device.
Further, described time limit judging unit 204 comprises:
Time in time limit is obtained subelement, is used for determining to read zero-time and reading termination time according to described reading permission configuration information;
System time obtains subelement, is used for selling the system acquisition current system time from the digital and electronic book;
The time limit judgment sub-unit, be used for definite described current system time greater than described reading zero-time, and the described current system time during termination time, determine that described digital and electronic book is above the reading approval time limit less than described readings.
Perhaps, described time limit judging unit 204 comprises:
Cumulative time is obtained subelement, is used for determining to have read cumulative time and maximum the reading cumulative time according to described reading permission configuration information;
The time limit judgment sub-unit is used for determining describedly to have read the cumulative time less than described maximum when reading the cumulative time, determines that described digital and electronic book surpasses to read approval time limit.
Further, described books display unit 205 comprises:
Books show subelement, for the information of the book file that obtains described digital and electronic book, show the information of obtaining to described user;
The timing subelement is used for carrying out timing reading time;
The timing storing sub-units is used for when described user withdraws from described digital and electronic book current timing result being deposited in the described certificate file as reading the cumulative time.
Further, the reading device of described digital and electronic book also comprises:
The request transmitting unit that continues to pay dues is used for determining that according to described reading permission configuration information described digital and electronic book surpasses when reading approval time limit, sells the reading request of continuing to pay dues that system sends described digital and electronic book to the digital and electronic book;
The certificate information acquiring unit is used for selling the new certificate file information of system acquisition from described digital and electronic book;
The certificate update unit is used for the information according to the described new described certificate file of certificate file information updating.
The reading device of the digital and electronic book that the embodiment of the invention provides, the OPEN of the digital and electronic book by receiving user's input, when determining that equipment with described digital and electronic book binding is current reading device, from the certificate file of described digital and electronic book, obtain the reading permission configuration information of described digital and electronic book, and when determining that according to described reading permission configuration information described digital and electronic book surpass to be read approval time limit, show the information in the book file of described digital and electronic book to described user.Therefore, can avoid the digital and electronic book after purchase, not limit inferior use indefinite duration, the generation of the situations such as mutual copy, thus can be when guaranteeing that the digital and electronic book is normally read, the copyright of protection digital and electronic book.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process such as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or store-memory body (Random Access Memory, RAM) etc. at random.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection domain with claim.
Claims (10)
1. the reading method of a digital and electronic book is characterized in that, comprising:
Receive the OPEN of the digital and electronic book of user's input;
When determining that equipment with described digital and electronic book binding is current reading device, from the certificate file of described digital and electronic book, obtain the reading permission configuration information of described digital and electronic book;
When determining that according to described reading permission configuration information described digital and electronic book surpass to be read approval time limit, show the information in the book file of described digital and electronic book to described user.
2. the reading method of digital and electronic book according to claim 1 is characterized in that, also comprises before the step of the reading request of the digital and electronic book that receives user's input:
Sell the reading payment request that system sends the digital and electronic book to the digital and electronic book;
Sell book file and the certificate file of the described digital and electronic book of system acquisition from described digital and electronic book.
3. the reading method of digital and electronic book according to claim 1 is characterized in that, the equipment of described definite and described digital and electronic book binding is that current reading device comprises:
Information generation key according to current reading device;
When the decruption key of determining described digital and electronic book was the key that generates, the equipment of definite and described digital and electronic book binding was current reading device.
4. the reading method of digital and electronic book according to claim 1 is characterized in that, describedly determines that according to described reading permission configuration information described digital and electronic book surpass to read approval time limit and comprise:
Determine to read zero-time and reading termination time according to described reading permission configuration information;
Sell the system acquisition current system time from the digital and electronic book;
Definite described current system time greater than described reading zero-time, and the described current system time less than described reading during the termination time, determine that described digital and electronic book surpasses to read approval time limit.
5. the reading method of digital and electronic book according to claim 1 is characterized in that, describedly determines that according to described reading permission configuration information described digital and electronic book surpass to read approval time limit and comprise:
Determine to have read cumulative time and maximum the reading cumulative time according to described reading permission configuration information;
Determining describedly to have read the cumulative time less than described maximum when reading the cumulative time, determining that described digital and electronic book surpasses to read approval time limit.
6. the reading method of digital and electronic book according to claim 5 is characterized in that, the information in the described book file that shows described digital and electronic book to described user comprises:
Obtain the information in the book file of described digital and electronic book, show the information of obtaining to described user, and to carrying out timing reading time;
When described user withdraws from described digital and electronic book, current timing result is deposited in the described certificate file as reading the cumulative time.
7. the reading method of digital and electronic book according to claim 1 is characterized in that, the described step of obtaining the reading permission configuration information of described digital and electronic book from the certificate file of described digital and electronic book also comprises afterwards:
When determining that according to described reading permission configuration information described digital and electronic book surpasses the reading approval time limit, sell the reading request of continuing to pay dues that system sends described digital and electronic book to the digital and electronic book;
Sell the new certificate file information of system acquisition from described digital and electronic book;
According to the information in the described new described certificate file of certificate file information updating.
8. the reading device of a digital and electronic book is characterized in that, comprising:
The command reception unit is for the OPEN of the digital and electronic book that receives user's input;
The equipment judging unit is used for judging whether the equipment of binding with described digital and electronic book is current reading device;
Information acquisition unit is used for judging the equipment bound with described digital and electronic book when carrying out the equipment of described OPEN at described equipment judging unit, obtains the reading permission configuration information of described digital and electronic book from the certificate file of described digital and electronic book;
The time limit judging unit for the reading permission configuration information of obtaining according to described information acquisition unit, judges whether described digital and electronic book surpasses the reading approval time limit;
The books display unit is used for judging that at described time limit judging unit described digital and electronic book surpasses when reading approval time limit, shows the information in the book file of described digital and electronic book to described user.
9. the reading device of digital and electronic book according to claim 8 is characterized in that, also comprises:
The payment request transmitting element is used for selling the reading payment request that system sends the digital and electronic book to the digital and electronic book;
The file acquisition unit is for the book file and the certificate file that sell the described digital and electronic book of system acquisition from described digital and electronic book.
10. the reading device of digital and electronic book according to claim 8 is characterized in that, described equipment judging unit comprises:
Key generates subelement, is used for the Information generation key according to current reading device;
Equipment is determined subelement, is used for when the decruption key of determining described digital and electronic book is the key that generates, and the equipment of definite and described digital and electronic book binding is current reading device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101209890A CN103377567A (en) | 2012-04-23 | 2012-04-23 | Method and device for reading digital electronic book |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101209890A CN103377567A (en) | 2012-04-23 | 2012-04-23 | Method and device for reading digital electronic book |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103377567A true CN103377567A (en) | 2013-10-30 |
Family
ID=49462619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101209890A Pending CN103377567A (en) | 2012-04-23 | 2012-04-23 | Method and device for reading digital electronic book |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103377567A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105095691A (en) * | 2014-04-24 | 2015-11-25 | 厦门简帛信息科技有限公司 | Method and device used for sending digital publication |
| CN107590367A (en) * | 2017-08-31 | 2018-01-16 | 杜敬红 | Borrow method and electronic equipment |
| CN108694583A (en) * | 2018-06-25 | 2018-10-23 | 深圳市腾讯网络信息技术有限公司 | Reading method, device and the computer equipment of e-book |
| CN110162935A (en) * | 2019-04-19 | 2019-08-23 | 杭州来布科技有限公司 | A kind of charging method of file paid utilization |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343938A (en) * | 2000-09-21 | 2002-04-10 | 优硕资讯科技股份有限公司 | Method and system for controlling lease of electronic file |
| CN1702596A (en) * | 2005-07-08 | 2005-11-30 | 北京北大方正电子有限公司 | Method for protecting content of digital works for hand-held devices |
| CN101150585A (en) * | 2007-11-15 | 2008-03-26 | 北大方正集团有限公司 | A method, system and client device for controlling digital content |
| CN101894228A (en) * | 2010-06-23 | 2010-11-24 | 深圳市天朗时代科技有限公司 | Identifier distribution and analysis method and multimedia reader |
| CN101894222A (en) * | 2009-05-19 | 2010-11-24 | 上海易狄欧电子科技有限公司 | Electronic book downloading method and purchasing system |
| CN101989988A (en) * | 2010-11-05 | 2011-03-23 | 上海传知信息科技发展有限公司 | Copyright protection system and method of ebook online reading |
| US20110093103A1 (en) * | 2009-10-21 | 2011-04-21 | Kai-Cheng Chuang | Audio recording electronic book apparatus and control method thereof |
| US20110313938A1 (en) * | 2010-06-16 | 2011-12-22 | Dicke Ronald | Time-slicing method and system for digital books |
-
2012
- 2012-04-23 CN CN2012101209890A patent/CN103377567A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343938A (en) * | 2000-09-21 | 2002-04-10 | 优硕资讯科技股份有限公司 | Method and system for controlling lease of electronic file |
| CN1702596A (en) * | 2005-07-08 | 2005-11-30 | 北京北大方正电子有限公司 | Method for protecting content of digital works for hand-held devices |
| CN101150585A (en) * | 2007-11-15 | 2008-03-26 | 北大方正集团有限公司 | A method, system and client device for controlling digital content |
| CN101894222A (en) * | 2009-05-19 | 2010-11-24 | 上海易狄欧电子科技有限公司 | Electronic book downloading method and purchasing system |
| US20110093103A1 (en) * | 2009-10-21 | 2011-04-21 | Kai-Cheng Chuang | Audio recording electronic book apparatus and control method thereof |
| US20110313938A1 (en) * | 2010-06-16 | 2011-12-22 | Dicke Ronald | Time-slicing method and system for digital books |
| CN101894228A (en) * | 2010-06-23 | 2010-11-24 | 深圳市天朗时代科技有限公司 | Identifier distribution and analysis method and multimedia reader |
| CN101989988A (en) * | 2010-11-05 | 2011-03-23 | 上海传知信息科技发展有限公司 | Copyright protection system and method of ebook online reading |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105095691A (en) * | 2014-04-24 | 2015-11-25 | 厦门简帛信息科技有限公司 | Method and device used for sending digital publication |
| CN107590367A (en) * | 2017-08-31 | 2018-01-16 | 杜敬红 | Borrow method and electronic equipment |
| CN108694583A (en) * | 2018-06-25 | 2018-10-23 | 深圳市腾讯网络信息技术有限公司 | Reading method, device and the computer equipment of e-book |
| CN108694583B (en) * | 2018-06-25 | 2022-05-24 | 深圳市腾讯网络信息技术有限公司 | Reading method and device of electronic book and computer equipment |
| CN110162935A (en) * | 2019-04-19 | 2019-08-23 | 杭州来布科技有限公司 | A kind of charging method of file paid utilization |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070168266A1 (en) | Systems, methods and computer readable code for visualizing and managing digital cash | |
| CN107784604A (en) | Copyright deposits card method, apparatus, storage medium and electronic equipment | |
| CA3034711C (en) | Method and system for the generation of user-initiated federated identities | |
| CN103377567A (en) | Method and device for reading digital electronic book | |
| CN111768296A (en) | Block chain-based small and micro enterprise loan approval method and device | |
| US20230134095A1 (en) | Systems, devices and methods for tracking authenticated clean energy with blockchains | |
| CN110046900A (en) | Invoice based on block chain cancels method and apparatus, electronic equipment | |
| CN105139197A (en) | Business processing unit and vehicle-mounted unit | |
| CN110472978A (en) | A kind of digital cash address tamper resistant method and system | |
| CN104217359A (en) | Software reselling method, device and system | |
| CN110543748A (en) | Block chain-based equipment data evidence storing method and device | |
| US20150332233A1 (en) | Apparatus, method and system of replacing physical versions of works with electronic versions | |
| Tsai et al. | A Survey of E-book Digital Right Management. | |
| JP2021015387A (en) | Smart contract system and program | |
| CN110473053A (en) | Risk control method and device based on guarantee | |
| CN104331643A (en) | Electronic book management method and device | |
| CN112434347B (en) | Rental business processing method, device, equipment and system | |
| CN109409875A (en) | A kind of bill method of calibration, device and electronic equipment | |
| CN105046816A (en) | Charging encryption method based on charging pile application | |
| CN103514384A (en) | Extended electronic copyright management method, client-side, server and system | |
| CN110175831B (en) | Credit transfer method and device based on blockchain and electronic equipment | |
| EP3540674A1 (en) | Method and system for the generation of user-initiated federated identities | |
| CN110555693A (en) | system and method for realizing two-dimensional code security by using SIM card | |
| CN103425905B (en) | Electronic copyright client, server are with administrating system | |
| CN103425903B (en) | Electronic copyright user registration, obtain, safeguard and method of commerce again |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131030 |