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公开(公告)号：KR1020070074017A
公开(公告)日：2007-07-12
申请号：KR1020060001552
申请日：2006-01-06
Applicant: (주)블루버드
Inventor： 박찬웅
Abstract: A serial communication circuit for automatically supporting plural signal levels and a communication terminal having the same are provided to support various signal levels by determining the signal level of an external device and selectively converting levels of Rx/Tx signals according to the determined signal level. A serial communication circuit(200) comprises a Tx port(250a), an Rx port(250b), a level decoder(220), a Tx signal level converter(231), an Rx signal level converter(232), a Tx switch(241), and an Rx switch(242). The level decoder(220) decodes the level of a signal inputted to the Rx port(250b), and generates a switch control signal according to the decoded result. The Rx signal level converter(232) converts level of the inputted signal. The Tx signal level converter(231) converts the level of a Tx signal. The Rx switch(242), in response to the switch control signal, selectively receives either the level-converted Rx signal or the inputted signal. The Tx switch(241) selectively transmits either the Tx signal or the level-converted Tx signal in response to the switch control signal.
Abstract translation: 提供用于自动支持多个信号电平的串行通信电路和具有该串行通信电路的通信终端，以通过确定外部设备的信号电平并根据所确定的信号电平有选择地转换Rx / Tx信号的电平来支持各种信号电平。 串行通信电路（200）包括Tx端口（250a），Rx端口（250b），电平解码器（220），Tx信号电平转换器（231），Rx信号电平转换器（232），Tx开关 （241）和Rx开关（242）。 电平解码器（220）对输入到Rx端口（250b）的信号的电平进行解码，并根据解码结果产生开关控制信号。 Rx信号电平转换器（232）转换输入信号的电平。 Tx信号电平转换器（231）转换Tx信号的电平。 Rx开关（242）响应于开关控制信号，选择性地接收电平转换的Rx信号或输入的信号。 Tx开关（241）响应于开关控制信号选择性地发送Tx信号或电平转换的Tx信号。
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公开(公告)号：KR1020140028841A
公开(公告)日：2014-03-10
申请号：KR1020120096045
申请日：2012-08-31
Applicant: (주)블루버드
Abstract: A mobile terminal having a security function is disclosed. According to an embodiment of the present invention, the mobile terminal having a security function comprises: a casing including a data input unit for inputting data and an upper casing and a lower casing which can be assembled and disassembled from each other; a circuit board including a security unit which is electrically connected to the data input unit, and for processing the inputted data; a tamper prevention conduction unit arranged between the casing and the circuit board and electrically connected to the circuit board by being compressed in an assembly process between the upper casing and the lower casing; a control unit for blocking access to the data of the security unit based on a resistance value of the tamper prevention conduction unit. Therefore, the present invention has an effect of preventing the important data from being exposed to the outside by blocking access to the data of the security area in which important data is stored, upon opening the casing forcibly.
Abstract translation: 公开了具有安全功能的移动终端。 根据本发明的实施例，具有安全功能的移动终端包括：壳体，包括用于输入数据的数据输入单元和可以组装和拆卸的上壳体和下壳体; 电路板，包括电连接到数据输入单元的安全单元，并用于处理输入的数据; 窜改防止导电单元，其布置在所述壳体和所述电路板之间并且通过在所述上壳体和所述下壳体之间的组装过程中被压缩而电连接到所述电路板; 控制单元，用于基于防篡改传导单元的电阻值阻止对安全单元的数据的访问。 因此，本发明具有通过在强制打开外壳时阻止对存储重要数据的安全区域的数据的访问来防止重要数据暴露于外部的效果。
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Patent Agency Ranking
公开(公告)号：KR101367934B1
公开(公告)日：2014-02-27
申请号：KR1020120096044
申请日：2012-08-31
Applicant: (주)블루버드
CPC classification number: G06F21/87 , H04M1/0202 , H05K5/0208
Abstract: A mobile terminal is disclosed. The mobile terminal of the present invention includes a case; a printed circuit board (PCB) which is installed in the case and on which a modulation detecting pattern, which includes adjacently arranged first and second contact type conductive patterns and a non-contact type conductive pattern separated from the first and second contact type conductive patterns, are installed on the surface; a detecting circuit electrically connected to the modulation detecting pattern and detecting a current flow state of the modulation detecting pattern; and a pattern current flow module arranged between the case and the printed circuit board, applying a current to the first and second contact type conductive patterns when the case is assembled, and blocking the current applied to the first and second contact type conductive patterns when the case is disassembled.
Abstract translation: 公开了一种移动终端。 本发明的移动终端包括： 印刷电路板（PCB），其安装在壳体中并且其上包括相邻布置的第一和第二接触型导电图案的调制检测图案和与第一和第二接触型导电图案分离的非接触型导电图案 ，安装在表面上; 电连接到调制检测图案并检测调制检测图案的当前流动状态的检测电路; 以及布置在所述壳体和所述印刷电路板之间的图案电流流动模块，当所述壳体组装时，向所述第一和第二接触型导电图案施加电流，并且当所述第一和第二接触型导电图案被施加到所述第一和第二接触型导电图案时， 情况拆解
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公开(公告)号：KR101219801B1
公开(公告)日：2013-01-18
申请号：KR1020060001552
申请日：2006-01-06
Applicant: (주)블루버드
Inventor： 박찬웅
Abstract: 다수의 신호 레벨을 자동으로 지원하는 직렬 통신 회로 및 이를 구비하는 통신 단말기가 개시된다. 본 발명의 통신 단말기는, 중앙 처리 장치 및 외부 직렬 통신 장치와 인터페이스하기 위한 직렬 통신 회로를 구비한다. 본 발명의 직렬 통신 회로는, 상기 외부 직렬 통신 장치로부터 수신되는 신호의 레벨을 판독하는 레벨 판독기, 상기 외부 직렬 통신 장치로 송신될 신호의 레벨을 변환하고, 상기 외부 직렬 통신 장치로부터 수신되는 신호의 레벨을 변환하는 신호 레벨 변환기, 및 상기 판독 결과에 기초하여, 상기 레벨 변환된 신호와 레벨 변환되지 않은 신호 중 어느 하나를 선택하는 스위치회로를 구비한다. 본 발명에 의하면, 외부 장치의 신호 레벨을 판별하여, 판별된 신호 레벨에 따라 선택적으로 송수신 신호의 레벨을 변환하여 줌으로써, 다양한 신호 레벨을 지원할 수 있다.
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公开(公告)号：KR100800578B1
公开(公告)日：2008-02-04
申请号：KR1020060119776
申请日：2006-11-30
Applicant: (주)블루버드
Inventor： 박찬웅
CPC classification number: G06F1/26 , G06F1/1613
Abstract: A power circuit for reducing probability of wrong operation in an internal circuit and a portable terminal including the circuit are provided to enable electric charges remaining in a capacitor to be more quickly discharged to prevent internal power from remaining, when a switch is turned off, thereby reducing probability of wrong operation caused by internal power remaining in the capacitor. A power circuit(100) comprises as follows. A switch circuit(120) selectively blocks at least one supply path for supplying internal voltages by responding to a control signal. Power capacitors(CT1) are connected to respective one-nodes on the supply paths. At least one discharge circuit(130) selectively discharges the power capacitors by responding to the control signal.
Abstract translation: 提供一种用于降低内部电路中的错误操作的可能性的电源电路和包括电路的便携式终端，以便当开关断开时，使电容器中残留的电荷能够更快地放电，以防止内部电力的剩余 降低由电容器内部剩余电力引起的错误操作的可能性。 电源电路（100）包括如下。 开关电路（120）通过响应于控制信号选择性地阻断用于提供内部电压的至少一个供电路径。 电源电容（CT1）连接到供电路径上的相应单节点。 至少一个放电电路（130）通过响应于控制信号来选择性地放电功率电容器。
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公开(公告)号：KR101410699B1
公开(公告)日：2014-06-24
申请号：KR1020120096045
申请日：2012-08-31
Applicant: (주)블루버드
Abstract: 보안 기능이 구비된 모바일 단말기가 개시된다. 본 발명의 일 실시예에 따른 보안 기능이 구비된 모바일 단말기는 데이터를 입력하는 데이터 입력부를 구비하며, 상호 조립 및 조립해제 가능한 상부케이싱 및 하부케이싱을 구비하는 케이싱; 데이터 입력부에 전기적으로 연결되되 보안이 필요한 보안유닛이 마련되며, 입력된 데이터를 처리하는 회로기판; 케이싱과 회로기판 사이에 배치되되 상부케이싱 및 하부케이싱의 조립시 가압되어 회로기판에 전기적으로 연결되는 탬퍼 방지 전도부; 및 탬퍼 방지 전도부의 저항값에 기초하여 보안유닛의 데이터에 대한 접근을 차단하는 제어부;를 포함하는 것을 특징으로 한다.
이에 의해, 케이싱의 강제 개방시, 중요 데이터가 저장된 보안 영역의 데이터에 대한 접근을 차단하게 되어, 중요 데이터가 외부로 유출되는 것을 방지할 수 있는 효과가 있다.-
公开(公告)号：KR101367933B1
公开(公告)日：2014-02-27
申请号：KR1020120096043
申请日：2012-08-31
Applicant: (주)블루버드
Abstract: A mobile terminal is disclosed. The mobile terminal of the present invention comprises: a case that may be assembled or disassembled; a printed circuit board (PCB) disposed in the case and including a tamper detect pattern having multiple conductive areas and at least one non-conductive area; a conductive area connecting unit disposed between the case and the PCB to electrically connect some of the multiple conductive areas when the case is assemble and to release the electrical connection of some of the multiple conductive areas when the case is disassemble; and a conductive areas connection sensing circuit electrically connected to the conductive areas to sense the states of electrical connections between the conductive areas, wherein the conductive areas include a first conductive area, a plurality of second conductive areas connected to the first conductive area though the conductive area connecting unit and disposed to be apart from each other, and a third conductive area a part of which is disposed between the second conductive areas.
Abstract translation: 公开了一种移动终端。 本发明的移动终端包括：可组装或拆卸的壳体; 布置在所述壳体中并包括具有多个导电区域和至少一个非导电区域的篡改检测图案的印刷电路板（PCB）; 导电区域连接单元，其设置在壳体和PCB之间，以在壳体组装时电连接多个导电区域中的一些，并且在壳体拆卸时释放一些多个导电区域的电连接; 以及导电区域连接感测电路，其电连接到所述导电区域以感测所述导电区域之间的电连接的状态，其中所述导电区域包括第一导电区域，多个第二导电区域，其连接到所述第一导电区域， 区域连接单元并且被设置为彼此分开，并且第三导电区域的一部分设置在第二导电区域之间。
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