Abstract:
PROBLEM TO BE SOLVED: To provide a system and method for receiving data in a mobile electronic device from a data input device. SOLUTION: The system includes a circuit for detecting data input device connection to a connector which the mobile electronic device includes. The detection is performed by inspection for operation state of a device contained in the mobile electronic device, by an electrical sensing circuit which determines the presence of the data input device, or by a mechanical sensing circuit which determines the presence of the data input device. When a device to be connected is determined to be a data input device, the data from the data input device is collected and processed. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a mobile communication device and an input device interface used for the same type of devices. SOLUTION: A mobile electronic device includes: an earphone/microphone port; an I/O circuit to receive a modulated data signal from data input devices via the earphone/microphone port; and a processor unit programmed to extract data from the modulated data signal. The processor unit (or the I/O circuit) detects connection of a device to an earphone/microphone connector of the mobile electronic device and determines whether the connected device is a data input device or not. If the connected device is a data input device, the processor unit is programmed to extract data from modulated data signals generated by the data input device. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
Systems, methods and apparatus for configuring and accessing a random access channel in a CDMA communication system are disclosed. The number of users supported by a random access channel can be optimized by assigning a distinct time of arrival to each of a plurality of users. Each of the users can be time synchronized and can transmit data at a time that compensates for a propagation delay to allow the data to arrive at the destination receiver at the assigned time. In a CDMA system, each of the users can transmit data that is spread with the same spreading code, provided the cross correlation properties of the code are sufficient to allow identification of a source that is time offset relative to another user. The time of arrival can be determined based on the number of active users, and can be assigned as often as each transmission by each user.
Abstract:
Systems, methods and apparatus for configuring and accessing a random access channel in a CDMA communication system are disclosed. The number of users supported by a random access channel can be optimized by assigning a distinct time of arrival to each of a plurality of users. Each of the users can be time synchronized and can transmit data at a time that compensates for a propagation delay to allow the data to arrive at the destination receiver at the assigned time. In a CDMA system, each of the users can transmit data that is spread with the same spreading code, provided the cross correlation properties of the code are sufficient to allow identification of a source that is time offset relative to another user. The time of arrival can be determined based on the number of active users, and can be assigned as often as each transmission by each user.
Abstract:
Systems, methods and apparatus for configuring and accessing a random access channel in a CDMA communication system are disclosed. The number of users supported by a random access channel can be optimized by assigning a distinct time of arrival to each of a plurality of users. Each of the users can be time synchronized and can transmit data at a time that compensates for a propagation delay to allow the data to arrive at the destination receiver at the assigned time. In a CDMA system, each of the users can transmit data that is spread with the same spreading code, provided the cross correlation properties of the code are sufficient to allow identification of a source that is time offset relative to another user. The time of arrival can be determined based on the number of active users, and can be assigned as often as each transmission by each user.
Abstract:
A system and method are provided for creating a picocell service alternate to a wireless network service. The method comprises: detecting a multiple access (MA) wireless communications network, such as a terrestrial or satellite network; and, generating a first picocell in response to detecting the MA wireless network. Typically, the method comprises receiving requests for picocell service from mobile stations, in response to generating the first picocell. In one aspect, the service requests made by the mobile stations are denied. In another aspect, the method further comprises: establishing a first picocell MSC; and, providing network services to mobile stations via the first picocell, in response to the requests for picocell service. For example, the first picocell MSC may provide the same network services that are provided by a conventional terrestrial network, for example. Alternately, the method establishes an alternative wireless network (a second picocell) to provide services.
Abstract:
A system and method are provided for creating a picocell service alternate to a wireless network service. The method comprises: detecting a multiple access (MA) wireless communications network, such as a terrestrial or satellite network; and, generating a first picocell in response to detecting the MA wireless network. Typically, the method comprises receiving requests for picocell service from mobile stations, in response to generating the first picocell. In one aspect, the service requests made by the mobile stations are denied. In another aspect, the method further comprises: establishing a first picocell MSC; and, providing network services to mobile stations via the first picocell, in response to the requests for picocell service. For example, the first picocell MSC may provide the same network services that are provided by a conventional terrestrial network, for example. Alternately, the method establishes an alternative wireless network (a second picocell) to provide services.
Abstract:
Se describen sistemas, metodos y aparatos para configurar y acceder a un canal de acceso aleatorio en un sistema de comunicacion de CDMA. El numero de usuarios soportados por un canal de acceso aleatorio puede optimizarse al asignar un tiempo distinto de llegada a cada uno de una pluralidad de usuarios. Cada uno de los usuarios puede ser sincronizado por tiempos y puede transmitir datos en un tiempo que compense un retardo de propagacion para permitir que los datos lleguen al receptor de destino en el tiempo asignado. En un sistema de CDMA, cada uno de los usuarios puede transmitir datos que se propagan con el mismo codigo de propagacion, con la condicion de que las propiedades de correlacion cruzada del codigo sean suficientes para permitir la identificacion de un origen que es el desplazamiento de tiempos con relacion a otro usuario. El tiempo de llegada puede determinarse basandose en el numero de usuarios activos, y puede asignarse tan frecuentemente como cada transmision por cada usuario.
Abstract:
A system and method are provided for creating a picocell service alternate t o a wireless network service. The method comprises: detecting a multiple acces s (MA) wireless communications network, such as a terrestrial or satellite network; and, generating a first picocell in response to detecting the MA wireless network. Typically, the method comprises receiving requests for picocell service from mobile stations, in response to generating the first picocell. In one aspect, the service requests made by the mobile stations ar e denied. In another aspect, the method further comprises: establishing a firs t picocell MSC; and, providing network services to mobile stations via the fir st picocell, in response to the requests for picocell service. For example, the first picocell MSC may provide the same network services that are provided b y a conventional terrestrial network, for example. Alternately, the method establishes an alternative wireless network (a second picocell) to provide services.
Abstract:
Systems, methods and apparatus for configuring and accessing a random access channel in a CDMA communication system are disclosed. The number of users supported by a random access channel can be optimized by assigning a distinct time of arrival to each of a plurality of users. Each of the users can be time synchronized and can transmit data at a time that compensates for a propagation delay to allow the data to arrive at the destination receiver at the assigned time. In a CDMA system, each of the users can transmit data that is spread with the same spreading code, provided the cross correlation properties of the code are sufficient to allow identification of a source that is time offset relative to another user. The time of arrival can be determined based on the number of active users, and can be assigned as often as each transmission by each user.