Abstract: A drug injection device according to the present disclosure includes: a drug injector configured to electrochemically drive an electroosmotic pump to suck a drug from a drug storage and discharge the sucked drug to an injection target; and a controller configured to output, to the drug injector, a control signal corresponding to an amount-based injection sequence that enables the electroosmotic pump to be driven in an immediate injection mode, wherein the amount-based injection sequence includes at least one pulse block that defines a voltage pulse or a current pulse to be applied to the electroosmotic pump, each pulse block defines a pair of pulse signals including a forward pulse and a reverse pulse that are applied to the electroosmotic pump to alternately generate negative pressure and positive pressure, and the electroosmotic pump alternately generates negative pressure and positive pressure for each pulse block to suck and discharge the drug.

Abstract: A drug injection device includes a drug injector configured to suck a drug from a drug storage by electrochemically operating an electroosmotic pump and discharge an sucked drug to an injection target; and a controller configured to output, to the drug injector, a control signal corresponding to an amount-based injection sequence for causing the electroosmotic pump to operate in an immediate bolus injection mode, wherein the amount-based injection sequence includes at least one pulse block defining a voltage pulse or a current pulse to be applied to the electroosmotic pump, the at least one pulse block defines a pair of pulse signals including a forward pulse and a reverse pulse that are applied to the electroosmotic pump to alternately generate negative pressure and positive pressure, and the electroosmotic pump alternately generates negative pressure and positive pressure for each pulse block to suck and discharge the drug.

Abstract: A drug injection device includes a drug injector configured to suck a drug from storage by operating an electroosmotic pump and discharge it to an injection target; and a controller configured to output to the injector a control signal for a speed-based injection sequence, causing the electroosmotic pump to operate in basal infusion mode. The speed-based injection sequence includes at least one pulse block defining a voltage or current pulse applied to the pump and at least one pause block maintaining 0 volt or 0 ampere for a predetermined time after the pulse block. The pulse block defines a pair of signals, a forward and reverse pulse, applied to the electroosmotic pump to alternately generate negative and positive pressure, enabling drug suction and discharge.

Abstract: A drug injection device includes a drug injector configured to electrochemically drive an electroosmotic pump to suck a drug from a drug storage and discharge an sucked drug to an injection target, and a controller configured to output, to the drug injector, a control signal corresponding to an injection sequence for defining an operation of the electroosmotic pump, wherein the injection sequence includes a pulse block that defines one of a voltage pulse and a current pulse to be applied to the electroosmotic pump, the pulse block defines a pair of pulse signals including a forward pulse and a reverse pulse that are applied to the electroosmotic pump to alternately generate negative pressure and positive pressure, and the electroosmotic pump sucks and discharges a drug by alternately generating the negative pressure and the positive pressure in the pulse block.

Abstract: One embodiment of the present disclosure relates to drug injector monitoring method and device and provides drug injector monitoring method and device that monitor a battery state, a remaining drug amount, temperature, and pressure of a drug injector such that a fixed amount of drug may be stably injected.

Abstract: The present invention is related to mobile communication system, and more particularly to a method of providing broadcasting service in the CDMA mobile communication system. The present invention prepares the long codes for a common broadcasting communication channel in the communication systems including at least one or more Base Transceiver Systems implementing wireless connection with terminals, the relevant service is provided/received by establishing the long code and the Walsh code in common at the Base Transceiver Systems implementing broadcasting services.

Abstract: A mobile communication system and a method of processing a handoff for the same is disclosed. A gateway control station performs matching of two system regions for a handoff process between the two system regions, and matches gateway base stations. The gateway base station uses respective primary frequencies among frequencies used in terminal base stations of the two systems which are located in a boundary region between the two system regions as common used frequencies, and controls a handoff cell which is defined as at least a portion of two cell sectors that belong to the two base stations and which uses the two common frequencies.

Abstract: A method and system for setting up a call in a CDMA mobile communication system, which is suitable for real time transmission of a fast data, such as a video data, between origination and termination mobile stations is disclosed. The method includes setting up a call between an origination side mobile station and a termination side mobile station, transferring bearer information between an origination base station controller (BSC) and a termination BSC through the set up call, to set up a bearer path between the two BSCs, transferring a data of a mobile station between the origination BSC and the termination BSC through the set up bearer path, and clearing the set up call and bearer path after the data is transferred.

Abstract: A method and system for performing a handoff between different CDMA systems in a mobile communication network having first and second cells and a gateway cell is disclosed. The handoff between the first and second cells is performed using a gateway, wherein one frequency is used by the first cell and a first sector of the gateway, and a second frequency is used by the second cell and a second sector of the gateway. The system and method allow for performing a handoff of a call between two different communication systems having two different communication standards, such as between a CDMA 2G system and a CDMA 3G system, and further allows for the handoff to be performed without dropping the call.

Abstract: A mobile communication system and a method of processing a handoff for the same is disclosed. A gateway control station performs matching of two system regions for a handoff process between the two system regions, and matches gateway base stations. The gateway base station uses respective primary frequencies among frequencies used in terminal base stations of the two systems which are located in a boundary region between the two system regions as common used frequencies, and controls a handoff cell which is defined as at least a portion of two cell sectors that belong to the two base stations and which uses the two common frequencies.

Abstract: An efficient and low cost method for performing inter-frequency handoff in a mobile communication system is implemented in software. As a result, none of the additional hardware required by conventional handoff systems to perform a handoff operation is needed. The inter-frequency handoff method includes as an initial step extracting handoff career data. Then, a threshold value determined from the extracted handoff career data is compared with a signal strength value from a mobile station, which is engaged in a call in a first cell using a non-common frequency with a second cell where handoff is to be performed. A point in time for performing the handoff is then decided based on the comparison. Finally, handoff is executed based on the non-common frequency at the decided point in time.

Abstract: The present invention is related to mobile communication system, and more particularly to a method of providing broadcasting service in the CDMA mobile communication system. The present invention prepares the long codes for a common broadcasting communication channel in the communication systems including at least one or more Base Transceiver Systems implementing wireless connection with terminals, the relevant service is provided/received by establishing the long code and the Walsh code in common at the Base Transceiver Systems implementing broadcasting services.

Abstract: Method for controlling a call in a communication system or a communication terminal, including the steps of (1) monitoring use of a terminal by a user, (2) generating a dial tone in the terminal itself when the terminal is in use and stopping generation of the dial tone when a first information from a user dialing is received, (3) setting up a radio traffic channel based on a preset protocol between the terminal and a base station, (4) storing an entire information from the dialing in a memory in the terminal during the radio traffic channel set up, and (5) transmitting dialing information stored in the memory up to that time in a form of a continuation message through the channel upon setting up of the radio traffic channel.

Abstract: A method and system for performing a handoff between different CDMA systems in a mobile communication network having first and second cells and a gateway cell is disclosed. The handoff between the first and second cells is performed using a gateway, wherein one frequency is used by the first cell and a first sector of the gateway, and a second frequency is used by the second cell and a second sector of the gateway. The system and method allow for performing a handoff of a call between two different communication systems having two different communication standards, such as between a CDMA 2G system and a CDMA 3G system, and further allows for the handoff to be performed without dropping the call.

Abstract: A method and system for setting up a call in a CDMA mobile communication system, which is suitable for real time transmission of a fast data, such as a video data, between origination and termination mobile stations is disclosed. The method includes setting up a call between an origination side mobile station and a termination side mobile station, transferring bearer information between an origination base station controller (BSC) and a termination BSC through the set up call, to set up a bearer path between the two BSCs, transferring a data of a mobile station between the origination BSC and the termination BSC through the set up bearer path, and clearing the set up call and bearer path after the data is transferred.

Abstract: A handoff control method and communication system is provided that uses a virtual cell boundary in a multiple frequency environment. The handoff control method includes forming a virtual cell boundary using a frequency coexisting between a terminal base station on a boundary area of multiple frequency environment and an adjacent base station. Pre-determining a likelihood of handoff possibilities is then based on distance or round trip delay between the virtual cell boundary when establishing calls in the terminal base station to thereby assign different frequencies to the calls. When a call assigned as a frequency group having small handoff possibilities transitions to an object base station, a handoff time point is determined as the call approaches the virtual cell during movement to the object base station to control a hard handoff processing procedure between frequencies.