Abstract: An ink cartridge for an inkjet printer is provided. The ink cartridge includes a light detection portion, a first triangular prism and a second triangular prism, made of transparent material and disposed on the light detection portion, for receiving, deflecting, or refracting light emitted by a light emitting element on the printer. Two surfaces of the second triangular prism contact ink in the ink cartridge. When the ink cartridge has ink contained therein and is installed into a printer, the light emitted by the light emitting element is totally reflected by the first triangular prism and refracted by the second triangular prism into the ink, and will not be received by a light receiving element on the printer. When the ink in the ink cartridge is exhausted, the light is totally reflected by the second triangular prism onto the first triangular prism, and then is reflected onto the light receiving element, and thus the printer detects that the ink is exhausted.

Abstract: A method and apparatus for realizing concurrency of voice and data are disclosed, wherein the method includes: step A, a network side receiving a voice call request, and when detecting that a called mobile terminal of the voice call request is carrying out a data service connection, executing step B; step B, the network side notifying a calling mobile terminal of the voice call request of a situation that the called mobile terminal is carrying out the data service connection, and prompting the calling mobile terminal to re-initiate a call in a manner of a video call simultaneously. The present invention achieves that the called mobile terminal can notifying the calling mobile terminal of the situation that the called mobile terminal is in the data connection and does not want the data connection to be interrupted when the called mobile terminal is carrying out the data service connection.

Abstract: A method for refilling ink into ink cartridge comprises: I. hermetically connecting an ink injection port of the ink cartridge to an ink supply port of an ink storage container of an ink filling tool which is not completely filled with ink, connecting a suction unit to the ink storage container of the ink filling tool and sealing the ink cartridge; II. sucking out the air inside the ink storage container of the ink filling tool by the suction unit; III. releasing the suction unit so that the ink inside the ink storage container of the ink filling tool is automatically absorbed by the ink cartridge due to atmospheric pressure balance. An ink filling tool used in the method described above also is provided.

Abstract: A method and apparatus are provided for automatically testing microwave instruction detection modules of a security system. The method includes the steps of detecting intruders within a protected space by monitoring a Doppler output of a signal extraction circuit coupled to a microwave transceiver module, varying a frequency of direct current power pulses applied to the microwave transceiver module, detecting a difference in magnitude of the Doppler output of the signal extraction circuit over the varied frequency and comparing the detected difference with a fault threshold level.

Abstract: Provided are methods and systems for movement correction in an MRI environment. In one aspect, provided are systems and methods for movement correction, comprising receiving a first plurality of images from a first scan of a subject with a first camera, receiving magnetic resonance imaging (MRI) images obtained concurrently with the first scan, correlating the first plurality of images obtained from the first scan with the MRI images, resulting in motion correction data, and providing the motion correction data to an MRI system, wherein the MRI system adjusts scanning according to the motion correction data.

Abstract: An ink cartridge for an inkjet printer is provided. The ink cartridge includes a light detection portion, a first triangular prism and a second triangular prism, made of transparent material and disposed on the light detection portion, for receiving, deflecting, or refracting light emitted by a light emitting element on the printer. Two surfaces of the second triangular prism contact ink in the ink cartridge. When the ink cartridge has ink contained therein and is installed into a printer, the light emitted by the light emitting element is totally reflected by the first triangular prism and refracted by the second triangular prism into the ink, and will not be received by a light receiving element on the printer. When the ink in the ink cartridge is exhausted, the light is totally reflected by the second triangular prism onto the first triangular prism, and then is reflected onto the light receiving element, and thus the printer detects that the ink is exhausted.