Storage media are provided. A substrate has an array of addressable locations thereon, each addressable location adapted to be physically associated with a collection of molecules, each collection comprising at least a first subcollection of molecules and a second subcollection of molecules. The molecules in the collection are selected from a set of unambiguously identifiable molecules, the set comprising at least a first subset of molecules and a second subset of molecules. Each molecule in the first subset is identifiable by a first physical property, and each molecule in the second subset is identifiable by a second physical property, different from the first physical property. Each molecule in the set is uniquely associated with a predetermined position in a numerical value, wherein the presence of the molecule in the collection indicates a predetermined digit at the associated position and the absence of said molecule in the collection indicates a zero at said associated position.

Various implementations disclosed herein include multi-scale visual markers that convey information in multiple sets of markings using different respective appearance attributes. In some implementations, the appearance attribute of the markings of a first set of markings corresponds to a first encoding parameter and the appearance attribute of markings of a second set of markings corresponds to a second encoding parameter different from the first encoding parameter. In some implementations, the first set of markings encode first data and the second set of markings are different than the first set of markings and encode second data. In some implementations, the different appearance attributes are different scales (e.g., different sizes, different numbers of markings per unit of space, different contrast, different color characteristics, different wavelengths, different image sensor types, etc.).

A device communicates with a scanner, such as a barcode scanner in a retail environment, and with a point-of-sale (POS) register. The device can process different types of machine-readable codes, such as scanned UPCs and unique barcodes associated with individual scratcher cards and/or other items. Data captured by the scanner passes through the device before reaching the POS register; such data may be selectively retransmitted (with or without modification) to the POS register and/or to a server or other device, or it may be blocked from reaching the POS register, server, and/or other device, depending on the current mode of operation. For example, the device can selectively relay some information (such as UPC data) to the POS register to process sales transactions, and/or can relay other information (such as unique barcode data) to server(s) to perform inventory tracking functions, while blocking such unique barcode data from reaching the POS register.

The present application provides a method and system for providing and verifying a two-dimensional code. During operation, the system receives, from a terminal of a first user, a two-dimensional code generation request comprising service data, which comprises at least an identifier of the first user. The system obtains a picture that is identifiable by naked eyes, associates the obtained picture with the identifier of the first user, and stores the association between the obtained picture and the identifier of the first user. The system generates a two-dimensional code based on the service data or based on a combination of the service data and the obtained picture and provides the two-dimensional code and the obtained picture to the first user, thereby facilitating the first user to display the two-dimensional code and the obtained picture when providing services.

A system and method is provide which allows supplemental information to be used, in combination with a portion of a visual code that is readable, to identify the visual code, and to provide information related to the visual code, even in the event of a scan of a compromised visual code and/or an inadequate scan of the visual code which yields only a portion of the data payload associated with the visual code. The supplemental information may include, for example, location based information, image based information, audio based information, and other types of information which may allow the system to discriminate a location of the scanned visual code, and to identify the scanned visual code visual code based on the portion of the data payload and the supplemental information.

Various implementations disclosed herein include multi-scale visual markers that convey information in multiple sets of markings using different respective appearance attributes. In some implementations, the appearance attribute of the markings of a first set of markings corresponds to a first encoding parameter and the appearance attribute of markings of a second set of markings corresponds to a second encoding parameter different from the first encoding parameter. In some implementations, the first set of markings encode first data and the second set of markings are different than the first set of markings and encode second data. In some implementations, the different appearance attributes are different scales (e.g., different sizes, different numbers of markings per unit of space, different contrast, different color characteristics, different wavelengths, different image sensor types, etc.).

A system and method for recognizing a person, including: capturing an identifying feature of the person; identifying the person based on the identifying feature to return a person identity; using the person's identity, retrieving information about the person from a person information database; and displaying the retrieved information in an overlay with a facial image of the person to a user. menu items can also be displayed. The identifying feature may be a biometric or a non-biometric feature.

Photographed image acquisition means (201) of an information processing device (20) acquires a photographed image photographed by photographing means (25) capable of photographing a target image including predetermined information. Reference means (202) refers to storage means (200) for storing the target image photographed in the past and information extracted from the target image in the past, in association with each other. Determination means (207) determines whether or not the target image photographed in the past has been captured in the photographed image. Processing execution means (211) executes, when the target image photographed in the past has been captured in the photographed image, predetermined processing based on the information associated with the target image.

A method includes a first computer encoding input data into a sequence of two-dimensional barcodes, the first computer displaying an image of each of the two-dimensional barcodes on a display screen in sequential order, a second computer using an imaging device to capture each of the displayed images to obtain the sequence of two-dimensional barcodes, and the second computer decoding each of the two-dimensional barcodes to obtain the input data. Separately, a first computer may divide input data into a sequence of data segments, receiving a personal value from a second computer, and perform an iterated mathematical function that uses the personal value and the sequence of data segments to generate a sequence of parameter values. The first computer may then transmit the iterated function and the initial segment to the second computer through a first channel and transmit the parameter values to the second computer through a second channel.

A setting system comprises a first electronic device and a second electronic device. The first electronic device is configured to output information for the second electronic device. The second electronic device is configured to acquire the output information from the first electronic device and change a setting of the second electronic device on the basis of the output information. The first electronic device is further configured to automatically erase the information from a memory of the first electronic device after confirming that the second electronic device has acquired the information from the first electronic device.