Wireless Markup Language

Abstract: Many parties have already demonstrated telemedicine applications that use cellular phones and the Internet. A current trend in telecommunication is the convergence of wireless communication and computer network technologies, and the emergence of wireless application protocol (WAP) devices is an example. Since WAP will also be a common feature found in future mobile communication devices, it is worthwhile to investigate its use in telemedicine. This paper describes the implementation and experiences with a WAP-based telemedicine system for patient-monitoring that has been developed in our laboratory. It utilizes WAP devices as mobile access terminals for general inquiry and patient-monitoring services. Authorized users can browse the patients' general data, monitored blood pressure (BP), and electrocardiogram (ECG) on WAP devices in store-and-forward mode. The applications, written in wireless markup language (WML), WMLScript, and Perl, resided in a content server. A MySQL relational database system was set up to store the BP readings, ECG data, patient records, clinic and hospital information, and doctors' appointments with patients. A wireless ECG subsystem was built for recording ambulatory ECG in an indoor environment and for storing ECG data into the database. For testing, a WAP phone compliant with WAP 1.1 was used at GSM 1800 MHz by circuit-switched data (CSD) to connect to the content server through a WAP gateway, which was provided by a mobile phone service provider in Hong Kong. Data were successfully retrieved from the database and displayed on the WAP phone. The system shows how WAP can be feasible in remote patient-monitoring and patient data retrieval.

Abstract: This specification defines XHTML 1.0, a reformulation of HTML 4 as an XML 1.0 application, and three DTDs corresponding to the ones defined by HTML 4. The semantics of the elements and their attributes are defined in the W3C Recommendation for HTML 4. These semantics provide the foundation for future extensibility of XHTML. Compatibility with existing HTML user agents is possible by following a small set of guidelines.

Abstract: This invention includes methods and apparatus for browsing markup language documents from within the context of a client-server application running on an end-user device. Browser functionality, which is configured according to user profile information specifying each user's authorization and preferences, is embedded in the application, and can be activated by application controls. While some users have unrestricted authorization and access, others are restricted to certain browser functions and to certain allowed network resources. This restriction is enforced by preventing the browser functionality from generating network addresses that are not on a list of allowed network addresses also present in the user profile information. Network access restriction is achieved, in part, by filtering markup language documents before display to delete linking information that is not allowed. Document filtering methods are presented for Hypertext Markup Language (HTML) and extensible Markup Language (XML) documents. The document filtering methods are extendable to additional markup languages.

Abstract: A shared markup system and a method are provided for supporting Web co-browsing. Based on the hyper-text markup language (HTML), the markup system is interoperable across different platforms and Web browsers and provides for online annotation, of shared HTML documents, directly within the browser's windows. The annotations created by the markup system are realized using HTML components that are composed dynamically. Synchronization and control of the browser's environment are also provided to achieve uniform participants' views.