摘要:
A logical relationship is established among peripherals in a wireless local area network managed by a system manager. A readable identifier is associated with each peripheral. A reader for reading the identifiers is respectively associated with selected peripherals during a set-up mode of system operation. A transceiver is in wireless communication with the system manager for identifying the reader and the selected peripherals to advise the system manager of the establishment of the logical relationship.
摘要:
A signaling arrangement and method for use in a wireless local area network managed by a system manager include a reader for electro-optically reading bar code symbols. The system manager verifies that a symbol has been successfully read and sends an acknowledgment signal by wireless, radio frequency transmission to a remote indicator operative for generating an alert signal noticeable to a user.
摘要:
Methods and systems are provided to facilitate communication with a plurality of remote units in a communication area that includes a plurality of spatial sectors. The system includes a network controller configured to receive and transmit under IEEE 802.11 specifications, and a plurality of directional antennas coupled to the network base station. Each of directional antennas functions as an access point for a respective spatial sector. The directional antennas and the network controller are combined as a single base station apparatus in an exemplary embodiment. Further, an exemplary network controller is configured to concurrently transmit a plurality of the data frames to more than one of the spatial sectors, and to synchronize the transmissions in a manner whereby all of the concurrently transmitted frames end simultaneously.
摘要:
The present invention relates to a mobile terminal that can interoperate with a plurality of headsets. The present invention further relates to systems and methodologies for facilitating communication to the mobile terminal from the plurality of headsets. The plurality of headsets can be of various types. For example, the headset can be a push button enabled signaling headset, which includes a signaling mechanism, such as a button, mounted to the headset or a headset cord. The mobile terminal includes a sensing component to detect the signaling from the headset. The signaling mechanism is employed to issue commands to the mobile terminal. Alternatively, the headset can be a standard, commercially available audio headset. If the standard headset is employed, the signaling function is not available and the standard headset operation is not impacted.
摘要:
Described is a system and method for communicating using a telecommunications device which includes an automatic speech recognition (ASR) system. The ASR system which is capable of recognizing at least one prestored command from a voice input to the telecommunication device is activated. The ASR system compares the voice input to the at least one prestored command. When at least a first portion of the voice input matches the prestored command, the ASR system reviews a second portion of the voice input to determine a parameter value. A tone system generates a tone frequency corresponding to the parameter value.
摘要:
Energy efficient roaming of a mobile device is described. The mobile device can include a sensor for sensing a motion of the mobile device to generate a sensor signal. A radio is capable of communicating with a wireless network. A processor activates the radio in the mobile device. The processor generates an environmental profile of the mobile device based at least on the sensor signal. A memory is coupled to the processor for storing the environmental profile. The processor deactivates the radio when the environmental profile indicates that the rate of motion of the mobile device is above a predetermined threshold for a first period of time. The processor reactivates the deactivated radio when the environmental profile indicates that the rate of motion of the mobile device is below the predetermined threshold for a second period of time.
摘要:
Described is a method and system for detecting a first trigger event using a trigger device, the trigger device including a trigger sensor and a trigger tag. Listening on a predetermined radio frequency band by an interrogator for an activation signal, wherein the activation signal is generated by the trigger tag, the activation signal including a unique identifier of the trigger tag and receiving the activation signal. The activation signal is then validated as being received from an associated trigger tag and the interrogator is activated into an interrogation mode upon validation of the activation signal.
摘要:
Described is a system and method for detection using an ultrasonic wave. The system may include a first arrangement and a second arrangement. The first arrangement may include a transmitter and a receiver. The transmitter transmits an ultrasonic wave along a surface on which items are to be stored and the receiver receives the wave after it has passed over the surface. The second arrangement receives from the first arrangement data corresponding to properties of the received wave. The second arrangement compares the properties of the received wave to properties of the transmitted wave to generate current condition value. The second arrangement determines based on the current condition value and calibration data a current condition state corresponding to a degree of the surface currently occupied by the items. The calibration data includes at least one calibration value and a corresponding calibration condition state.
摘要:
An object locator system generates an audio signal as if emanating from the object as a user varies angular orientation and distance from an object or site to be located within an area. A computer linked to an access transceiver receives transmissions from a user wearing a headset including a transceiver and electronic compass. The compass provides a signal indicative of the user orientation. An access transceiver receives the signal and calculates the location of the user based on the time difference of arrival of the RF signal and triangulation of the user movement. An accelerometer in the headset continuously tracks user movement. The location of the object in a vertical direction is provided by a directory or other reference source stored in the computer. Based on the angular orientation, horizontal and vertical distance of the object or site relative to the user, the computer maps the location information into sounds in the form of pulse amplitude or frequency modulated sound. The audio signal is perceived by the user as emanating from the object or site.
摘要:
Energy efficient roaming of a mobile device is described. The mobile device can include a sensor for sensing a motion of the mobile device to generate a sensor signal. A radio is capable of communicating with a wireless network. A processor activates the radio in the mobile device. The processor generates an environmental profile of the mobile device based at least on the sensor signal. A memory is coupled to the processor for storing the environmental profile. The processor deactivates the radio when the environmental profile indicates that the rate of motion of the mobile device is above a predetermined threshold for a first period of time. The processor reactivates the deactivated radio when the environmental profile indicates that the rate of motion of the mobile device is below the predetermined threshold for a second period of time.