摘要:
A speed measuring system for measuring the speed of a wireless communication terminal communicating with a base station includes an angle measuring unit, a distance measuring unit, a time measuring unit, and a speed calculator. The base station includes a signal tower and an antenna on the signal tower. The signal tower defines a central longitudinal axis perpendicular to the antenna, and the axis intersects the antenna at a point. The angle measuring unit measures an included angle between signal from the wireless communication terminal at any location and the antenna. The distance measuring unit measures a distance between the wireless communication terminal at any location and the point. The time measuring unit measures the time the wireless communication terminal takes from a first location to a second location. The speed calculator calculates the speed of the wireless communication terminal.
摘要:
An exemplary system for assisting a driver while reversing his or her car is used in conjunction with the car being fitted with a real-time information acquiring module to collect information concerning a road behind the car. The system includes a wireless communication device for wirelessly communicating with the real-time information acquiring module. The wireless communication device includes a detection module to detect movement information of the car, and a control module to compare the movement information with pre-stored standard parameter information. The standard parameter information can include the acceleration value of the car becoming zero, and a backward movement beginning within 20 seconds after the acceleration value becomes zero. The control module signals the real-time information acquiring module when the movement information matches the pre-stored standard parameter information. The wireless communication device further includes a display to display information of the road at the rear of the car.
摘要:
A mobile phone and a location update method adapted for the mobile phone are provided. The mobile phone includes a location update processing unit, a location area judging unit, a scope acquiring unit, a scope judging unit, and a selecting unit. When the mobile phone frequently moves back and forth within a predetermined scope of a boundary area of two adjacent location areas, the mobile phone does not perform a location update, and thus the mobile phone does not need send updated location information to a network server and saves a lot of power.
摘要:
A vehicle rearview back-up system includes a backup camera, a display, a calculator, a storage unit, a detector, and a moving unit. The backup camera captures an image of a parking spot when the vehicle is backed-up to a predetermined position. The display displays the captured image and an outlined parking spot in the captured image defined by the driver. The calculator calculates an imaging ratio between the size of the captured image and the size of the outlined parking spot. The display displays a vehicle image in a predetermined region according to the calculated imaging ratio. The detector detects moving direction and moving distance of the vehicle. The moving unit moves the vehicle image in the display according to the moving direction and moving distance of the vehicle, and the calculated imaging ratio for implementing the back-up process of the vehicle.
摘要:
A method for adjusting a suspension of communication time of a mobile phone is provided. Wherein the mobile phone receives wireless signals from a base station and transmits signals to the base station. The wireless signals include the suspension of communication time. The method includes decoding the received wireless signal and determining whether there are too many failed attempts to decode wireless signals in a first predetermined time, further determining the mobile phone enters a dead zone of a network, and determining size of dead zone and sensing movement speed of the phone to determine when the mobile phone will leave the dead zone. If the mobile phone will leave the dead zone soon, maintaining the connection with the network, otherwise hanging up the call.
摘要:
A method for capturing videos applied in a video device is provided. The video device includes a video capturing unit having a field of view and a timer. The video device includes a position sensing unit capable of sensing first position information, and an orientation sensing unit. The video device rotatingly receives second position information and personal information periodically. The method included is first to clear the timer and begin the timer again. Then, obtaining the second position information, the personal information, the first position information, and the orientation. Next, forming a coordinate system and converting the first position information and the second position information to a set of coordinates. Then, determining which person correspond to which of the portable communication devices, and associating the personal information with each person. Next, generating a composite image and a composite video comprising the composite images.
摘要:
A method for selectively sending a location update request of a mobile phone is provided. The mobile phone determines whether it has entered a network coverage blind spot. Geographic information of the blind spot is obtained when the mobile phone is determined to have entered a network coverage blind spot, wherein the geographic information includes a length of the blind spot. The mobile phone senses a movement speed of the mobile phone if the network coverage blind spot is one of the predetermined blind spots. The mobile phone further calculates a time the mobile phone is in the blind spot according to the length of the blind spot and the movement speed of the mobile phone, and stop the periodical location update until the calculated time elapsed. The present disclosure further provides a related mobile phone.
摘要:
An electronic device with a function of recognizing multi-touch inputs includes a multi-touch display unit, an input unit receiving multi-touch inputs on the multi-touch display unit, a storage unit, and a processing unit. Each multi-touch input includes a plurality of touch points which forms a touch area. The storage unit stores a table which records a relationship between an area of the touch area of the multi-touch input and a function of the electronic device. The processing unit senses whether there is a multi-touch input on the display unit, computes the area of the touch area of the multi-touch input when there is a multi-touch input on the multi-touch display unit, and determines a function associated with the computed area in the table stored in the storage unit.
摘要:
The disclosure provides a mobile phone with function to acquire targeted message and method thereof. The method includes steps: recording sub-actions of the mobile phone in response to input signals from a user in a predetermined time period in a coverage area of the base station, acquiring a defined key phrase of each sub-action and grouping all sub-actions associated with a same key phrase into a same action, counting the number of times of the action is performed in the predetermined time period in the coverage area of the base station, judging whether the number of times of the action reaches a preset value, if yes, sending a wireless signal including the key phrase of the action to the base station, and receiving a message including the key phrase within the text body of the message from the base station and displaying the message.
摘要:
An audio device and a volume adjusting method are provided. The audio device includes a speed sensor, a first FIFO buffer unit, and a second FIFO buffer unit. The audio device generates audio signals by playing multimedia files and stores audio signals to the first FIFO buffer unit. The audio device collects ambient sound signals and stores collected sound signals to the second FIFO buffer unit. The audio device further analyzes stored audio signals and sound signals to determine a waveform of environmental noise signals, and determines a SPL of the environmental noise signals according to the determined waveform. The audio device then compares the determined SPL with a preset SPL and compares the sensed speed with a preset speed if the determined SPL is greater than the preset SPL, and adjusts the volume of audio signals according to a comparison result between the sensed speed and the preset speed.