Abstract: An execution engine embeddable in a plurality of host application programs to control execution of code in each of the host application programs is disclosed. The execution unit includes a command unit, an execution unit and a host call unit. The command unit receives commands from a host application program in which the execution engine is embedded, including a command to execute a sequence of platform-independent instructions. The execution unit executes the sequence of platform-independent instructions until an instruction indicating either a break event or a remote procedure call is detected. The host call unit initiates execution of one or more procedures in the host application program in response to the execution unit detecting the instruction indicating a break event or a remote procedure call.

Abstract: A method and system allowing a mobile phone user to “opt in” to requests with multiple response options, to respond indicating that user wishes not to be tracked, or to respond indicating some information about state, possibly in addition to PVT information. The user has options besides allowing ping responses or turning off GPS tracking. When a ping is received, user chooses whether or not to opt in to the ping. The user may refuse to respond, to respond normally with or without PVT or other information, or to respond saying only that the mobile phone is turned on. GPS tracking continues to operate, so that upon return to normal responses, no cold start of GPS tracking is involved. More intelligent, such as for example rules-based, responses can be made to ping messages, in which GPS tracking interacts with a user interface to determine how to respond flexibly to pings.

Abstract: A mobile device is configured to periodically report its tracking data. A rule set is applied to the tracking data. Based upon the application of the rule set, appropriate actions are taken.

Abstract: A method and system allowing a mobile phone user to “opt in” to requests with multiple response options, to respond indicating that user wishes not to be tracked, or to respond indicating some information about state, possibly in addition to PVT information. The user has options besides allowing ping responses or turning off GPS tracking. When a ping is received, user chooses whether or not to opt in to the ping. The user may refuse to respond, to respond normally with or without PVT or other information, or to respond saying only that the mobile phone is turned on. GPS tracking continues to operate, so that upon return to normal responses, no cold start of GPS tracking is involved. More intelligent, such as for example rules-based, responses can be made to ping messages, in which GPS tracking interacts with a user interface to determine how to respond flexibly to pings.

Abstract: A method and apparatus for paging data in a computer system is provided. A set of data associated with a program unit is divided into pages such that no item of the set of data spans more than one page. The size of one page may vary from the size of another. When the program unit is compiled, metadata is generated that indicates the division of items into pages. At load time, a page mapping is generated based on the metadata. The page mapping is used to locate a item that belongs to the set of data. Other parts of the program unit, such as byte code, can contain references to items in the constant pool. Each reference specifies the number of the page in which the corresponding item will be stored at runtime, and the offset of that item within the page.

Abstract: An execution engine embeddable in a plurality of host application programs to control execution of code in each of the host application programs is disclosed. The execution unit includes a command unit, an execution unit and a host call unit. The command unit receives commands from a host application program in which the execution engine is embedded, including a command to execute a sequence of platform-independent instructions. The execution unit executes the sequence of platform-independent instructions until an instruction indicating either a break event or a remote procedure call is detected. The host call unit initiates execution of one or more procedures in the host application program in response to the execution unit detecting the instruction indicating a break event or a remote procedure call.