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Circuit device for preventing radiation emission in portable terminal with two cameras

A technology of portable terminal and circuit device, applied in the field of circuit device

Inactive Publication Date: 2011-08-24
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In more detail, as Figure 1B As shown, the conventional portable terminal has such a problem: because the pixel clock (PCLK) line and the data line (DATA) of the video call camera (CIF CAM) 110 and the video capture camera (5M CAM) 112 are shared to the application processor (AP )114 common connection, so the harmonic frequency of data operation or clock operation of one camera is radiated to another camera through FPCB

Method used

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  • Circuit device for preventing radiation emission in portable terminal with two cameras
  • Circuit device for preventing radiation emission in portable terminal with two cameras
  • Circuit device for preventing radiation emission in portable terminal with two cameras

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Embodiment Construction

[0018] The following description, with reference to the accompanying drawings, is provided to assist in a comprehensive understanding of exemplary embodiments of the present invention as defined by the claims and their equivalents. The following description includes various specific details to facilitate understanding but these should be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions will be omitted for clarity and conciseness.

[0019] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to provide a clear and consistent understanding of the invention. Accordingly, it will be apparent to those skilled in the art that the foll...

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Abstract

A circuit device for preventing radiation emission in a portable terminal with two cameras is provided. The device includes a first camera, a second camera, a processor, and a 3-state buffer. The processor outputs a first control signal controlling an operation of the first camera and a second control signal controlling an operation of the second camera. The 3-state buffer electrically connects between the first camera and the processor, and connects or disconnects between the first camera and the processor depending on the first control signal.

Description

technical field [0001] The invention relates to a circuit arrangement for protection against adverse effects of radiation in a portable terminal with two cameras. More specifically, the invention relates to a circuit arrangement for preventing radiation of a first camera at a harmonic frequency from affecting another camera. Background technique [0002] In recent years, the use of video as an integral part of various services in portable terminals has increased. For example, portable terminals enabling video shooting and video calls are being provided. In some cases, a portable terminal has a first digital camera for high definition (HD) video shooting and a second digital camera for video calling, the first digital camera and the second digital camera are provided separately. [0003] Figure 1A with Figure 1B A portable terminal with two cameras according to conventional technology is shown. [0004] refer to Figure 1A , a folder-type or slide-type portable terminal...

Claims

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Application Information

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IPC IPC(8): H04N5/232H05K9/00
CPCH04N5/2258H04N5/217H04N1/00307H04N2007/145H04N5/232H04N5/3577H04N23/81H04N23/45H04N23/60H04N25/617
Inventor 孙制贤朴相律金闰石白承杰孙圣远
Owner SAMSUNG ELECTRONICS CO LTD