Wacom Co., Ltd.

Novi Rahman

Tanya Dimitrova

Lachezar Sachov Dodov

Katya Yurukova

Avinav Khanal

Hidehiko Yokotsuka

Joss Giffard-Burley

Joss Daniel Giffard-burley

A record including an original document and a modification to the original document is created. Metadata associated with the modification to the original document is generated. The modification in stored in a data store. Creation and registration of a decentralized identifier (DID) document for the modification is requested based on the generated metadata. Modified document metadata is generated which includes a document hash and the created DID document for the modification. Recordation of the modification in a blockchain transaction, creation and registration of a DID document for the modified document, and generation of verifiable credentials for the modification are requested. The generated verifiable credentials for the modification are stored and a quick response (QR) code for the DID document for the modification is generated. A visual representation of the modification and the QR code for the modification are added to the original document, generating a sealed document.

Secure signing method, device and system

A handwritten data capture method creates handwritten data including a plurality of pieces of stroke data that is based on writing performed on each page of a paper medium having a plurality of pages. The handwritten data capture method includes: acquiring the plurality of pieces of stroke data created based on the writing sequenced in a writing order; displaying the pieces of stroke data together on a display device; accepting an input of a break position of the pieces of stroke data; identifying a continuous portion of the pieces of stroke data based on the break position and the writing order; updating the display device to display the identified continuous portion of the pieces of stroke data in the writing order; and repeating the accepting, the identifying, and the updating until a given operation is received.

Handwritten data capture method and handwritten data capture device

A user notification method performed by a handwritten data capture device includes determining whether a pointing body is in a pen-up state or a pen-down state, and determining whether coordinate data of a pointing body on a touch sensor of the handwritten data capture device is stored in a first area of a memory. In response to determining that the coordinate data is stored in the first area of the memory and that the pointing body is in the pen-up state, making a first user notification, for example, by causing a LED lamp to slowly flash a light green color. In response to an acceptance of a given user operation, switching a storage destination of the coordinate data to a second area of the memory that is different from the first area. Accordingly, a user may be prevented from forgetting to press an operating button for changing a storage destination file of handwritten data.

User notification method, handwritten data capture device, and program

Growing community of inventors

Dusseldorf, Germany

Novi Rahman