Abstract:
A decoder (215) implemented in a receiver of a wireless communication system employs an improved method and apparatus for decoding an encoded signal. The receiver sums the energy values (156A, 156B, ...156N) from a plurality of fingers within to produce an aggregate energy value (166). From the aggregate energy value (166), a set of log-likelihood values (207) are generated with a non-linear function generator (205) before being deinterleaved by a deinterleaver (210). The deinterleaved values (213) are input to the decoder (215) which estimates the original signal (178) by incorporating path histories of bits in the estimation of subsequent, related bits. Use of the path histories of bits improves the estimates of the original signal (178), which translates into an increase in the sensitivity of the receiver.
Abstract:
An electrode material for use in a lithium intercalation electrochemical cell. The electrode material is an Li2NiO2 material which may be used either alone, or in combination with conventional lithiated transition metal oxide materials. The electrode material provides a reservoir or excess pool of lithium ions adapted to overcome the irreversible capacity loss typically experienced in current lithium ion batteries.
Abstract:
A reusable housing (700) receives a memory card (702) containing a machine-readable storage medium (714) to interface with a device (704) having a PC card interface (706) within a PC card slot (710). The memory card (702) has a plurality of connection points (716) for externally accessing the machine-readable storage medium (714). The reusable housing (700) includes a housing member (720) which removably receives and retains the memory card (702). A PC card connector (722) is positioned on the housing member (720) to interface with the PC card interface (706) when the housing member (720) is inserted in the PC card slot (710). The reusable housing (700) further includes an interface (724) which connects the plurality of connection points (716) to the PC card connector (722) to facilitate communication between the machine-readable storage medium (714) and the PC card interface (706).
Abstract:
A multi-circuit processor device, such as a personal digital assistant, having a processor (11). The processor (11) has a memory select output (19 or 14). A program memory (12) with a memory select input (18 or 14) is coupled to the memory select output of the processor for selecting the program memory for addressing by the processor. A peripheral circuit (20) such as a radio modem has a data memory (40) for storing secure data. A connection (16) couples the processor and the peripheral circuit for communicating data between the processor and the data memory. A gate element (17) is associated with the connection between the processor and the peripheral circuit. The gate element is coupled to the memory select output of the processor for opening the gate element, thus allowing for security of access to the critical data in the data memory (40).
Abstract:
A telecommunications system (100) includes a service provider (200) providing a plurality of services to a plurality of terminals (400, 401, 402). A controller (300) having a user identifier stored therein can be associated with a reader in the terminal for reading the user identifier. A selector in the terminal (400) selects one or more of the plurality of services to be associated with the user identifier. A transmitter transmits to the service provider (200) user-service information corresponding to the user identifier and information as to the selected services. The service provider (200) receives the user-service information and determines from which service provision area the user-service information was transmitted. A service provision controller determines that a particular service is to be provided to the user and a determining means determines whether the particular service is included in the first set of selected services. A paging message having paging information corresponding to the user-service information is then transmitted to the service provision area. The terminal (400) receives that paging message and responds to the service provider (200) if it can accept the service.
Abstract:
An electronic book (118) includes a book-shaped housing having a first housing member (102) pivotably connected to a second housing member (104) to open and close in a book-like manner. A touchscreen (130) displays a page of the text represented by the machine-readable data. A user-initiated event selecting a portion of the text is received by the touchscreen (130). The touchscreen (130) displays the portion of the text in a highlighted form. The processor (152) stores an indicator of the portion of the text to be highlighted in the removable machine-readable storage medium (136) to remain with the text when the removable machine-readable storage medium (136) is removed from the electronic book (118).
Abstract:
A method of displaying a relative position of a current page (168) of a book displayed using an electronic book (118) having a book-shaped housing (100) includes displaying the current page (168) on a first portion of a display device (130) incorporated in the book-shaped housing (100). A graphical representation (178, 188) of the relative position of the current page (168) within the book is displayed on a second portion of the display device (130), the second portion being peripheral to the first portion. The graphical representation (178, 188) can include an image of a plurality of page edges located proximate to an edge of the first portion, the plurality of page edges aligned generally parallel to the edge. The edge can be either a side edge, a top edge, or a bottom edge of the first portion. Preferably, the image of the plurality of page edges has a depth proportionate to a number of pages remaining in the book relative to a total number of pages in the book.
Abstract:
A system for limiting access to a book card (136) includes a book card writer (702) for encoding the book card (136) with a serial number and an access level. An access control program (820) limits access to the book card (136) by a book card reader (822). As a result, the book card reader (822) only displays a content of the book card (136) that is consistant with the book card's access level.
Abstract:
A method of displaying at least one reading metric in an electronic book (100) includes reading machine-readable data from a machine readable storage medium (136) installed in the electronic book. The machine-readable data is representative of text of a book. At least one page of the text represented by the machine-readable data is displayed using the electronic book (100). A reading pace of a user is monitored over the at least one page, and the reading pace is displayed by the electronic book. An amount of the book which can be read at the reading pace during a remaining powering time for a battery which powers the electronic book can also be displayed. An estimated completion time for a portion of the book can be calculated and displayed based on the reading pace.
Abstract:
An apparatus (700) for inhibiting operation of an electronic device (702) during take-off and landing of an aircraft (802) has a sensor (704) that measures a lateral acceleration. A control circuit (706) is coupled to the sensor (704) and has an output (708) coupled to the electronic device (702).