摘要:
A docking display unit for physically engaging a portable computing unit and a combination of the same. The display unit may include or exclude a central processing unit and includes a housing with a hinged first and second region. The first region includes a display screen and the second region includes a keyboard. A recessed docking port is provided in the second region and is configured to receive the portable device therein. At least one connector is provided in the docking port to operationally link a central processor in the portable device with the display screen and keyboard. A touchscreen on the portable device provides a user interface for controlling the combined display unit and portable device. The portable device preferably is a smartphone.
摘要:
A computation efficient polyphase channelization system enables one of many user FDMA signals to be channelized through multiple FFT response frequency bands forming an aggregate frequency band where K-point FFT channels are greater than the decimation factor M to produce FFT overlapped responses that have a smooth aggregate response without disjointed band gaps for reduced distortion using a clockwise commutator having M channels feeding M filter blocks, each of which having β polyphase filters, and having a ring switch to provide smooth filter responses that then drive β K-point FFTs to provide a β set of K vector FFT responses that are then combined in a post processing system for producing K channelized outputs.
摘要:
A method and system for resource allocation. Specifically, in one embodiment, a method begins by receiving a request for an interactive session from a user. The request also comprises a resource requirement profile. Then, the method continues by selecting a computing resource having an affinity to the user. The computing resource is selected from a plurality of computing resources that are available to the user. The selected computing resource is implemented to support the interactive session. Thereafter, the selected computing resource is assigned to the user for use in the interactive session.
摘要:
An apparatus and method are disclosed that can adapt off-the shelf PDA devices (90) to user input/output applications such as data entry applications and cellular phone applications. The resulting apparatus (10) may be sized and shaped to be durable and facilitate handheld operation when the user is mobile during use. The apparatus provides features required for portable data entry such as key entry, barcode scanning, radio frequency identification, and wireless local area network (LAN) as well as wide area network (WAN) communications. The apparatus may be operated (a) in a slave mode with inclusion of a PDA device (90) for use in certain input/output operations that are processor intensive as well as (b) in a stand-alone mode without inclusion of a PDA device (90) for use in certain other input/output operations that are not processor intensive.
摘要:
A method of operating a data processing system having a main memory divided into memory pages that are swapped into and out of main memory when the main memory becomes short. The data processing system has an operating system that sends page store commands specifying memory pages to be stored in a swap file and page retrieve commands specifying memory pages to be retrieved from the swap file and stored in the main memory. The present invention provides a swap driver that utilizes compression code for converting one of the memory pages that is to be swapped out of main memory to a compressed memory page. The data processing memory includes a compressed page region that is used to store the compressed memory pages. A page table in the compressed page region specifies the location of each compressed page and the page address corresponding to that page. The swap driver compresses at least one of the memory pages specified in one of the page store commands to provide a corresponding compressed memory page and causes that compressed memory page to be stored in the compressed page region. The swap driver also searches the page table for a page identified in one of the retrieve commands. The swap driver causes that page to be moved to a corresponding area of main memory after decompressing the page if the swap driver finds an entry in the page table indicating that the page is stored in the compressed page region.
摘要:
To support speculative execution in a processor, a speculative look aside table stores information about deferred exceptions. Labels attached to predicates in the predicate register file of the processor serve as indices to a speculative look aside table. When an exception is generated for a speculative operation, the speculative look aside table is updated. Deferred exceptions are detected and handled when the processor reads the corresponding entry in the speculative look aside table during an explicit or implicit check operation.
摘要:
A translation look-aside buffer (TLB) for translating a variable page size virtual page number to a physical page number. The TLB partitions the virtual page number into an upper portion and a lower portion. The upper portion is always compared to an upper virtual page number entry in a first content addressable memory while only certain bits of lower portion are selectively compared to a corresponding number of bits in a lower virtual page number entry in a second content addressable memory. The number of bits compared in the second content addressable memory is determined by the specified size of the physical page. The TLB includes a page size memory having a plurality of page size entries wherein the certain number of bits for each of the lower virtual page entries is specified by a corresponding page size entry. Associated with each bit in the lower virtual page number entries is an enable transistor for selectively enabling the comparison of that bit in the lower virtual page number entry. The enable gate includes a control input coupled to a corresponding bit in a corresponding page size entry, the enable transistor selectively enabling the single bit comparison when the corresponding bit in the page size entry is set to an enable state and selectively disabling the comparison when the corresponding bit in the page size entry is set to a disable state.
摘要:
A device (10) adding keyboard input to a handheld computer (12) lacking such input (such as pen computers and personal digital assistants) includes a bracket (30) having a plurality of clips (33) removably carrying the handheld computer (12), and a joint (40) secured to the keyboard (11) and the bracket (30) for positioning the keyboard (11) in a plurality of orientations relative to the handheld computer (12). These orientations include a first orientation in which the keyboard (11) is operable and at a preselected viewing angle from a display (14) that is pan of the handheld computer (12), a second orientation adjacent the display (14) in which the keyboard (11) substantially covers the display (14), and a third orientation proximate the handheld computer (12) in which the display (14) is unobstructed, thereby facilitating pen-based input through the display (14). A locking slide (51) carried in a recess (52) is selectively extended by the user to pass through a plurality of slots (53, 54 and 55) in joint (40) to secure the keyboard (11) and handheld computer (12) in the first and operational orientation.
摘要:
A portable device (10) for selective message recordation and playback and scheduling includes a portable unit (11) and an optional homebase station (12). Portable unit (11) includes a housing (15), unit controller (20), tactile input mechanism (40), audio processor (60) and video processor (80). Portable unit (11) allows textual, audible and visual message inputs and their selective playback based on time or other preselected textual, audible or visual stimulus. A selectively detachable stylus (51) may be removed to engage a touch panel (50) for making operational selections and entering information. Optional homebase station (12) may include a variety of features for supporting and supplementing those of handheld unit (11), such as a floppy drive (112) message memory, input keys (114), a battery charging circuit (115) and an external communication circuit (117).
摘要:
A portable hand-held device (10) for data collection by an operator includes a grip unit (12) having polarized connectors (31, 32) at the top and bottom thereof for removable engagement with mating polarized connectors (33, 34) in external modulus (14) furnishing operator selectable, application functions such as CCD or laser scanning, and radio frequency automatic identification. Device (10) is held and operable by one hand in either right- or left-handed configurations with the output from modules (14) directed away from the operator and toward the object from which data is to be obtained. The connectors (31, 32) are mounted in reversed orientation from each other, thereby insuring that external removable modules (14) are automatically connected in the proper orientation for the desired handed operation.