Abstract: A system and method for selective control of zoom adjustments in an electronic publication is disclosed. The method may include generating content for display on an electronic reading device; generating at least one style for the content, and storing the content and the at least one style on a computer readable medium. The generation of at least one style may include identifying at least a portion of the content for which at least one zoom level will be specified; specifying a base text size for the portion of the content; and specifying a first value to increment the base text size to a first zoom state text size.

Abstract: A system for and method for providing sub-publication content in an electronic device is presented. The system and method receive electronic content from one or more content sources via a network, where the electronic content includes a master publication content item and one or more sub-publication content items. The system and method store the plurality of electronic content and select at least some of the sub-publication content items for presentation with the master publication content. The system and method present the selected sub-publication content items with the corresponding master publication content at an electronic reader device.

Abstract: A system for and method for electronic paper display device content formatting is presented. The system and method may include receiving an electronic request to format electronic paper display device content at an a network accessible device, determining remaining available display space on a page view of a electronic paper display associated with an electronic paper display device, identifying additional electronic content for inclusion in the page view based at least in part on a comparison of one or more attributes of the additional electronic content with the determined remaining available display space, and adding the identified additional electronic content to the page view.

Abstract: A system for and method for tracking events occurring on an electronic paper display device is presented. The system and method may include detecting an event occurring at the electronic paper display device, identifying the event and a status of the electronic paper display device, wherein the identification of the event comprises using a data structure mapping electronic content structure to one or more identifiers, and transmitting the one or more identifiers associated with the event via a network to a network accessible device.

Abstract: Systems and methods for facilitating electronic transactions via a device capable of communicating with a network. The method includes providing a catalog on the network and communicating with the network via the device. The catalog is downloaded to the device and communication is discontinued with the network via the device. At least one desired transaction within the catalog is selected and stored on the device. The device recommunicates with the network and the at least one desired transaction is completed.

Abstract: Systems and methods for facilitating electronic transactions via a device capable of communicating with a network. The method includes providing a catalog on the network and communicating with the network via the device. The catalog is downloaded to the device and communication is discontinued with the network via the device. At least one desired transaction within the catalog is selected and stored on the device. The device recommunicates with the network and the at least one desired transaction is completed.

Abstract: The present invention provides a system and method to efficiently generate and switch page display views on a portable electronic book. The method includes generating an ebook binary file including a plurality of book views, each of the plurality of book views including information needed to generate page display images representing content of a reading material in a font having a particular font point size. The method further includes parsing the ebook binary file and generating the page display images representing content of a reading material.

Abstract: A method for on-line controlling caching of an image on a viewing device to efficiently display the image on the viewing device. The method comprises the following steps: (a) sending from a server to the viewing device an image tag included in a hypertext language code, the image tag having attributes, the attributes specifying the image; (b) parsing the hypertext language code including the image tag; (c) searching for a copy of the image in a cache memory of the viewing device using the image tag attributes; (d) displaying the copy of the image if the copy of the image is found in the cache memory and is current; (e) fetching the image from the server if the copy of the image is not found in the cache memory or if the copy of the image is not current; and (f) storing the fetched image and the image tag attributes in the cache memory.

Abstract: The invention is a method for dynamically converting the byte-ordering of a data structure of a resource type from a first format to a second format, the first format being incompatible with the second format. The method comprises the following steps: (a) creating a template which corresponds to the data structure of the resource type, the template having a structure in a third format which is compatible with the first and second formats; (b) linking the template to the resource type; and (c) converting automatically the byte-ordering of the data structure of the resource type from the first format to the second format using the template.

Abstract: The present invention is a method and system for electronically distributing digital contents. The digital contents include textual, graphical and pictorial information. At least one portable electronic book is operative to request a digital content from a catalog of distinct digital contents, to receive and display the requested digital content in readable form. An information services system is in electrical communication with the portable electronic book to perform authentication and rendering the requested digital content. An authentication server authenticates the identity of the requesting portable electronic book. A copyright protection server renders the requested digital content sent to the requesting portable electronic book readable only by the requesting portable electronic book. At least one primary virtual bookstore is in electrical communication with the information services system. The primary virtual bookstore is a computer-based storefront accessible by the portable electronic book.

Abstract: The present invention is a method and apparatus for exchanging information between an electronic book and a cartridge. The electronic book has an on-board storage and the cartridge contains a cartridge storage. It is determined if the cartridge is present. If the cartridge is present, a transfer mode is identified. The information between the on-board storage and the cartridge storage is then transferred according to the identified transfer mode.

Abstract: The present invention is a method and apparatus for authenticating an information exchange between a host and a guest on a network. The host has a host key and the guest has a guest key. An authenticating server authenticates the guest. The authenticating server uses the host key and the guest key. The guest authenticates the authenticating server using the guest key. The host authenticates the guest and the authenticating server using the host key.

Abstract: A method for on-line displaying and updating a dynamic menu included in a page requested by a viewing device from a server. The dynamic menu has at least one item. The viewing device has a display screen and a menu function key for displaying a default menu when the viewing device is off-line. The method includes the following steps: (a) sending the page to the viewing device as a hypertext language code, the hypertext language code including a menu tag which specifies the dynamic menu; (b) receiving the page at the viewing device; (c) parsing the hypertext language code to identify the menu tag; (d) displaying the page on the display screen; (e) displaying the dynamic menu on the display screen when the menu function key is activated; and (f) performing a dynamic action when one item of the dynamic menu is selected by an action of a user of the viewing device.