摘要:
Disclosed is a low bit rate audio and video communication system which employs an integrated encoding system that dynamically allocates available bits among the audio and video signals to be encoded based on the content of the audio and video information and the manner in which the audio and video information will be perceived by a viewer. A dynamic bit allocation and encoding process will evaluate the current content of the audio and video information and allocate the available bits among the audio and video signals to be encoded. In addition, an appropriate audio encoding technique is dynamically selected based on the current content of the audio signal. A face location detection subroutine will detect and model the location of faces in each video frame, in order that the facial regions may be more accurately encoded than other portions of the video frame. A lip motion detection subroutine will detect the location and movement of the lips of a person present in a video scene, in order to determine when a person is speaking and to encode the lip regions more accurately. The audio and video signals generated by a second party to a communication are monitored to determine if the second party is paying attention to the audio and video information transmitted by the first party to the communication.
摘要:
In a communications system, a convolutional encoder encodes data from a data source and a modified Viterbi decoder decodes the encoded data after the encoded dated passes through an error producing channel. The decoder calculates selected metric increments, known as kernel metric increments, for half the states, and selects survivor metrics for all states.
摘要:
A call billing method and apparatus specifies, on a call-by-call basis, the calling charges incurred by a caller during a call to a sponsor-provided value-added service. The method provides the sponsor real time access to rate tables to specify call billing parameters needed to rate calls made to a sponsor number. A billing number is determined and validated and used to identify the party to receive a billing record for the call. A separate billing record is created for each call to the sponsor's number which includes sponsor-specified charges determined using the call billing parameters. Another feature enables the caller or called party to provide call billing parameters for billing and identificaiton purposes.
摘要:
Disclosed are a method and a device for adjusting screen locking time, and an electronic terminal. Time interval values T1, T2, . . . , and TN between screen locking and screen unlocking for consecutive N times are acquired, and when it is determined that the acquired time interval values T1, T2, . . . , and TN are all in a preset threshold range, a current screen locking time value is updated into the sum of the current screen locking time value and a preset time delay value. In the disclosure, a usage situation in which the terminal automatically locks the screen and a user unlocks the screen is monitored in real time, and according to the time intervals between screen locking and screen unlocking for consecutive N times, it is determined whether the current screen locking time is appropriate in the current usage environment and situation. When the determining result is that the current screen locking time is inappropriate, the current screen locking time value is automatically updated into the current screen locking time value plus the preset time delay value, so as to achieve the objective of dynamically adjusting the screen locking time according to the current usage environment and situation, thereby effectively reducing the unlocking operations and screen locking settings of the user and improving satisfaction in the user experience.
摘要:
A pumpless, fanless electrolyte-circulation system comprises an electrolyzer core that generates hydrogen and oxygen gases and includes a water electrolyzer having a plurality of electrolytic serial clusters connected substantially in parallel with each other and assembled into respective sealed reaction cells. Each of the electrolytic serial clusters includes a plurality of electrolytic cells. An electrolyte container includes a plurality of electrolytes in form of a concentration and is substantially separated from and connected to the electrolyzer core with a supply tube and return tube. A frame is substantially resistant to the concentration and separates a plurality of electrodes. Releasing of the gases brings the electrolytes in the electrolyzer core out of the electrolyzer core through the supply tube into the electrolyte container. The return tube allows each of the electrolytes to enter the electrolyzer core such that the electrolyte is forced to circulate by a releasing force of the gases.
摘要:
A drill bit configured for boring holes or wells into the earth, the drill bit having a face and a plurality of zones, the drill bit having geometrically sharp inserts located in an inner zone and non-geometrically sharp inserts located in an outer zone.
摘要:
A junction box for a solar battery comprises a box body in which a plurality of connector bases are fixed, and a plurality of connection assemblies detachably connected with respective ones of the plurality of connector bases. Each connection assembly comprises a bracket and elastic member. The bracket is detachably connected with a respective connector base and configured to form an accommodating space with the respective connector base, and the elastic member is received within the accommodating space. The bracket comprises a first end connectable with an external cable, and a second end connectable with a connection cable of the solar battery. The brackets of immediately adjacent connection assemblies are formed with respective via-holes for insertion of pins of a diode to couple the diode between the respective immediately adjacent connection assemblies, with the pins being capable of being clamped between the respective immediately adjacent connection assemblies.
摘要:
The present invention discloses methods and devices for humidifying the proton exchange membranes of fuel cells with water obtained from the exhaust of the fuel cells. Humidifying methods include the following steps: cooling the hot and humid exhaust of the fuel cell to condense the water in the exhaust with the intake gas for the fuel cell; separating the water from the rest of the exhaust, and, delivering the water to the intake gas of the fuel cell. Humidifying devices include an outer shell containing a rotating inner shell. The inside of the inner shell forms a chamber where the exhaust is collected and cooled, and water is condensed and separated by the rotation of the inner shell. Openings on the inner shell allow the condensed water to pass through to one or more chambers containing the intake gas. The chambers are formed by the inside of the outer shell and the outside of the inner shell. Humidifying devices methods and devices of this invention can respond to the varying power output of the fuel cell. They also have high humidifying efficiency, low energy consumption, are cheap to operate, and work well during startup at low temperatures.
摘要:
The present invention provides for a method of three dimensional temperature monitoring based in hyperthermic procedures, the heat dissipation, and therefore, temperature variations, does not change dramatically over a spatial region and, second, temperature change, which manifests itself as the phase change, has different characteristics compared to the anatomic magnitude image. Therefore the present invention exploits these facts to provide a method for acquiring the temperature map of three orthogonal planes nearly simultaneously.
摘要:
The present invention relates to pyrrole substituted 2-indolinone compounds and their pharmaceutically acceptable salts which modulate the activity of protein kinases and therefore are expected to be useful in the prevention and treatment of protein kinase related cellular disorders such as cancer.