Symbol Technologies, LLC

Neomedia Technologies, Inc.

Nedmedia Technologies, Inc.

Kevin D Hunter

Duanfeng He

Sundeep Kumar

Robert T Durst, Jr

Eugene B Joseph

Frederick Schuessler

Cary Chu

Steven Kearns

Steven J Shellhammer

A camera-enabled cell phone that is adapted to image a machine readable code such as a bar code, decode the bar code, send the bar code data over the Internet to a resolution server that will return an associated URL that will ink the camera phone to content on an information server. Thus, by taking a picture of a bar code symbol, the camera phone will automatically retrieve content from the Internet that has been linked to that bar code via the present invention.

Automatic access of internet content with a camera-enabled cell phone

A portable wireless device that is adapted to image a machine readable code such as a bar code, decode the bar code, send the bar code data over the Internet to a resolution server that will return an associated URL that will link the portable wireless device to content on an information server. Thus, by taking a picture of a bar code symbol, the portable wireless device will automatically retrieve content from the Internet that has been linked to that bar code via the present invention.

Automatic access of a networked resource with a portable wireless device

A camera-enabled cell phone that is adapted to image a machine readable code such as a bar code, decode the bar code, send the bar code data over the Internet to a resolution server that will return an associated URL that will link the camera phone to content on an information server. Thus, by taking a picture of a bar code symbol, the camera phone will automatically retrieve content from the Internet that has been linked to that bar code.

A method of and system for accessing a primary content file with a client device that is browser-based; i.e. that does not require a plug-in type program to be executed on the client device in addition to the browser. URLs based on linkage codes entered into the client device are assembled by a network-based URL-assembly server rather than at the client device. This invention is especially suited for use with web-enabled cell phones or an internet kiosks.

Method and system for simplified access to internet content on a wireless device

A data encoding/decoding scheme includes a plurality of bar code symbols each carrying a portion of the data in which improved error correction capabilities are incorporated. According to one aspect, once data codewords have been derived to form the symbols, a first set of data correction elements are derived from a first field, then a second set of error correction elements are derived from the data elements and the first set of error correction elements using a second, wider field.

Error correction in macro bar code symbols

The present invention operates by inputting into the client computer a linkage code (a machine readable code such as a bar code symbol or a human-readable alphanumeric text string) that includes a server identification code and an item identification code. The client computer then extracts the server identification code, and obtains from local cache or from the routing server a URL template associated with the server identification code. The URL template includes the name of an information server and at least one parameter field to be completed by the client computer. The URL template is completed by the client computer by filling in at least the item identification code, and the completed URL template is then sent to the information server named therein as a primary content URL request.

System and method of using machine-readable or human-readable linkage codes for accessing networked data resources

A method of accessing electronic resources via machine readable data embedded on a document which comprises compressing input data with a transmitter adapted to save a first bandwidth using a compression method adapted to minimize utilization of bandwidth by the compressed input data while retaining substantially all information content of the input data and appending a compression flag to the compressed input data indicative of the compression method enabling a receiver to decompress the compressed input data. The compression step further comprises utilizing a compression dictionary adapted to map the elements and strings of the input data to minimized representations having redundancies deleted. The compression dictionary may be appended to the compressed input data (as cleartext or cyphertext) under circumstances where a bandwidth occupied by the appended compression dictionary is less than the bandwidth saved by the step of compressing the input data. The compression dictionary may also be selected by the receiver independently from the transmitter independently indexes, pointer registration, application restricted subsets or customized according to the input data content. Also the input data may be encrypted, and an encryption flag appended which is indicative of the encryption method enabling decryption via public or private key cryptosystems as well as utilizing various authentication techniques such as digital signatures to ensure that the document was created by a licensed user.

Method and system for accessing electronic resources via machine-readable data on intelligent documents

The disclosure relates to techniques for determining the presence, orientation and location of features in an image of a two dimensional optical code. The techniques are adapted for use in mapping data in an image pixel plane with grid locations in a grid-based two dimensional code to account for size, rotation, tilt, warping and distortion of the code symbol. Where such a code is a MaxiCode, techniques are disclosed for determining the presence and location of the MaxiCode bulls-eye, orientation modules, primary data modules and secondary data modules.

Techniques for reading two dimensional code, including MaxiCode

Techniques for reading two dimensional code, including maxicode

The present invention is a system and method for providing automated access to electronic information stored in a database in either a local or remote location. The system utilizes a machine-readable code printed on a document, referred to herein as an intelligent document since it stores information used to automatically access the information. The machine-readable symbol comprises encoded source data, wherein the source data comprises application launch information as well as file location information. The source data is encoded and printed, and then distributed by the vendor by any logical means to the end user. The end user then scans the code via appropriate code scanning (e.g. bar code scanning) equipment, decodes the raw decoded data, and the file location information is then used to access the appropriate file. In a preferred embodiment, a Web browser program is launched, and the URL of the vendor's Web site is accessed through the Internet. Local file retrieval may also be implemented on the client computer itself, as well as over an intranet or LAN environment. Additional user-specific demographic data such as the user's name and address may also be encoded in the machine-readable code when the document is specifically tailored for individual targeting, such as mailing labels. This demographic information is uploaded to the WWW site for use by the vendor. In addition, the present invention encodes security data, such as an encryption key, for use in secure data transmissions such as electronic commerce over the Internet.

Automatic access of electronic information through machine-readable

A electro-optical memory includes a substrate on which is printed (or otherwise inscribed) a complex symbol or 'label' or 'bar code' of a high density two-dimensional symbology. The bar code contains component symbols or 'codewords' which are placed in row and column formation, with a variable number of codewords per row, and a variable number of rows. The symbology utilizes implicit bar code encoding scheme for implicit encoding the number of rows and the number of columns of codewords, as well as a predetermined amount of error correction. The symbology is capable of supporting a fixed number of bar code variants, with each variant having a predetermined number of rows and columns of codewords, and a predetermined error correction capability. For some codewords the implicit encoding scheme is combined with a gray coding scheme to reduce the inter-row codeword crosstalk. Systems are used for printing and decoding the bar codes of the invented symbology in applications where improved storage density and tight real estate requirements are of utmost importance. A memory may be used in conjunction with a scanner and a suitable control system in a number of applications, e.g., robotics operations or automated object searching.

Two-dimensional bar code symbology using implicit version information

The present invention is a secure system and method for providing automated access to electronic information stored in a database in either a local or remote location. The system utilizes a machine-readable code printed on a document, referred to herein as an intelligent document since it stores information used to automatically access the information. The machine-readable symbol is encoded with source data (including a file location pointer) that is first obfuscated by generating a checksum of the source data, encrypting the source data by using the checksum as an encryption key, and assembling the checksum with the encrypted source data prior to encoding. The machine-readable symbol is then printed and distributed by the vendor by any logical means to the end user. The end user then scans the code via appropriate code scanning (e.g. bar code scanning) equipment, and de-obfuscates the scanned data by parsing the checksum, decrypting the remainder of the scanned data string (which includes the file location pointer) using the parsed checksum as a decryption key, computing a checksum of the decrypted data string, and comparing the computed checksum with the parsed checksum to determine the validity of the code. The file location pointer is then used to access the appropriate file. In a preferred embodiment, a Web browser program is launched, and the URL of the vendor's Web site is accessed through the Internet.

Growing community of inventors

Fort Myers, FL, United States of America

Kevin D Hunter