Abstract:
A peripheral device (13) is cooperable with a host computer (11) to direct the host computer (11) to device information stored at an external location (17) accessible to the host computer (11) via an external data path (14, 16). The device information can then be automatically downloaded to the host computer (11) for use in conjunction with the peripheral device (13).
Abstract:
A system comprises a wireless master unit and one or more wireless slave units, each having a unique identifier. When a wireless slave unit is active, it is addressed by one of a limited number of temporary addresses. A PARK mode enables a wireless slave unit to be in an idle state during which its temporary address is deallocated, enabling that address to be assigned to another wireless slave unit. To page a parked slave, a paging beacon packet is broadcast to, and received by, each of the wireless slave units at fixed intervals during a master-to-slave time slot. Each wireless slave unit determines whether the received paging beacon packet includes its unique identifier. If so, the wireless slave unit retrieves a temporary address from the paging beacon packet. The wireless unit transmits a response to the wireless master unit during a subsequent slave-to-master time slot if the received paging beacon packet included the unique identifier belonging to the wireless slave unit. Parked wireless slave units are also assigned a unique response number by the master. The master broadcasts a polling beacon packet during a master-to-slave time slot. If the parked slave unit desires access to the channel, it transmits a response in an N:th slave-to-master time slot following the polling beacon packet where N is a function of the slave's unique response number.
Abstract:
A system comprises a wireless master unit and one or more wireless slave units, each having a unique identifier. When a wireless slave unit is active, it is addressed by one of a limited number of temporary addresses. A PARK mode enables a wireless slave unit to be in an idle state during which its temporary address is deallocated, enabling that address to be assigned to another wireless slave unit. To page a parked slave, a paging beacon packet is broadcast to, and received by, each of the wireless slave units at fixed intervals during a master-to-slave time slot. Each wireless slave unit determines whether the received paging beacon packet includes its unique identifier. If so, the wireless slave unit retrieves a temporary address from the paging beacon packet. The wireless unit transmits a response to the wireless master unit during a subsequent slave-to-master time slot if the received paging beacon packet included the unique identifier belonging to the wireless slave unit. Parked wireless slave units are also assigned a unique response number by the master. The master broadcasts a polling beacon packet during a master-to-slave time slot. If the parked slave unit desires access to the channel, it transmits a response in an N:th slave-to-master time slot following the polling beacon packet where N is a function of the slave's unique response number.
Abstract:
A PERIPHERAL DEVICE (13) IS COOPERABLE WITH A HOST COMPUTER (11) TO DIRECT THE HOST COMPUTER (11) TO DEVICE INFORMATION STORED AT AN EXTERNAL LOCATION (17) ACCESSIBLE TO THE HOST COMPUTER (11) VIA AN EXTERNAL DATA PATH (14,16).THE DEVICE INFORMATION CAN THEN BE AUTOMATICALLY DOWNLOADED TO THE HOST COMPUTER (11) FOR USE IN CONJUNCTION WITH THE PERIPHERAL DEVICE (13).(FIG 1)
Abstract:
A system comprises a wireless master unit and one or more wireless slave units, each having a unique identifier. When a wireless slave unit is active, it is addressed by one of a limited number of temporary addresses. A PARK mode enables a wireless slave unit to be in an idle state during which its temporary address is deallocated, enabling that address to be assigned to another wireless slave unit. To page a parked slave, a paging beacon packet is broadcast to, and received by, each of the wireless slave units at fixed intervals during a master-to-slave time slot. Each wireless slave unit determines whether the received paging beacon packet includes its unique identifier. If so, the wireless slave unit retrieves a temporary address from the paging beacon packet. The wireless unit transmits a response to the wireless master unit during a subsequent slave-to-master time slot if the received paging beacon packet included the unique identifier belonging to the wireless slave unit. Parked wireless slave units are also assigned a unique response number by the master. The master broadcasts a polling beacon packet during a master-to-slave time slot. If the parked slave unit desires access to the channel, it transmits a response in an N:th slave-to-master time slot following the polling beacon packet where N is a function of the slave's unique response number.
Abstract:
A peripheral device is cooperable with a host computer to direct the host computer to device information stored at an external location accessible to the host computer via an external data path. The device information can then be automatically downloaded to the host computer for use in conjunction with the peripheral device.
Abstract:
Un método de funcionamiento de un sistema con salto de frecuencia que comprende una unidad maestra inalámbrica y una o más unidades esclavas inalámbricas que comparten un canal, al acceso al cual es controlado por la unidad maestra inalámbrica, en el que cada una de las una o más unidades esclavas inalámbricas tiene un identificador único y el sistema incluye un modo de función de aparcamiento, comprendiendo el método la etapa de que la unidad maestra inalámbrica asigne una dirección de Medium Access Control (MAC - Control de Acceso a Medio) de longitud corta para cada citada unidad esclava inalámbrica cuando se conecta al canal para su uso por la unidad maestra inalámbrica con el fin de direccionar cada citada unidad esclava, en el que cuando entran en el modo de función de aparcamiento la una o más unidades esclavas abandonan cualquier dirección de MAC asignada previamente, y comprendiendo también el método, para permitir que una citada unidad esclava inalámbrica en el modo de función de aparcamiento indique su intención de activarse a la unidad maestra inalámbrica, las etapas de: definir una serie de intervalos de tiempo que comprenden ocurrencias alternantes de un intervalo de tiempo de maestra-a-esclava y un intervalo de tiempo de esclava-a-maestra, en el que cada uno de los intervalos de tiempo de esclava-a-maestra comprende una pluralidad de sub-intervalos de esclavaa-maestra; asignar un único número de respuesta de la unidad maestra inalámbrica cuando entra en el modo de función de aparcamiento; emitir un paquete de control de interrogación (601) para cada una de las una o más unidades esclavas inalámbricas a intervalos fijos durante un intervalo de tiempo de maestra-a-esclava desde la unidad maestra inalámbrica; para al menos una de las una o más unidades esclavas inalámbricas que desea activarse, transmitir un paquete (603) a la unidad maestra inalámbrica durante un sub-intervalo de esclava-a maestra que tiene lugar N intervalos después del paquete de control de interrogación, en el que N es una función del único número de respuesta de la al menos una o más unidades esclavas inalámbricas.