KR100377342B1 - Wired / wireless connection device of key phone system - Google Patents

Abstract

The present invention relates to a key phone system, and more particularly, to a wired / wireless connection device of a key phone system for providing both a wireless call service and a wired call service to an extension subscriber accommodated in the key phone system.

In the conventional key phone system, only one of the wireless call service or the wired call service can be provided to the subscriber. Accordingly, in the case of providing the wireless call service to the subscribers in the key phone system that provides only the wired call service to the subscribers, the existing wired telephone should be dismantled and the wireless connection device and the mobile device newly purchased and installed. Therefore, the existing landline telephones can not be used, there is a problem that the economic efficiency is reduced.

The present invention provides a wired call service or a wireless call service to an extension subscriber in parallel, and does not need to disassemble an existing wireline telephone to provide a wireless call service to an extension subscriber. Can be.

Description

Wired / wireless connection device of key phone system

The present invention relates to a key phone system, and more particularly, to a wired / wireless connection device of a key phone system for providing both a wireless call service and a wired call service to an extension subscriber accommodated in the key phone system.

In general, the key phone system accommodates a plurality of extension subscribers and performs a function of connecting a call path so that an extension call and a trunk line call can be made to a corresponding subscriber. In addition, the key phone system performs a function of providing a wireless call service or a wired call service to an extension subscriber. When providing a wireless call service to an extension subscriber, a plurality of wireless connection devices are connected to the key phone main device and wirelessly connected. Provides wireless call service to subscribers by making wireless calls with the subscriber's mobile device through the device, and in case of providing wired call service, by connecting a plurality of phones to the key phone main device to make a call through the corresponding phones. Provide fixed call service to extension subscribers. However, in the conventional key phone system as described above, only one of the wireless call service or the wired call service can be provided to the subscriber.

Accordingly, in the case of providing a wireless call service to an extension subscriber in a key phone system that provides only a wired call service to an extension subscriber, the existing wired telephone must be dismantled and a new wireless connection device and a portable device must be purchased and installed. Therefore, the existing landline telephones can not be used, there is a problem that the economic efficiency is reduced.

The present invention is to solve the problems as described above, by providing a wireless call service and a wired call service to the subscriber in parallel, the existing landline phone when providing a wireless call service to the subscriber It is an object of the present invention to provide a wired / wireless connection device for a key phone system that can be used as it is without disassembly to make the installation and operation of the system economical.

1 is a block diagram of a wired and wireless connection device according to the present invention.

Explanation of symbols on the main parts of the drawings

10: data interface unit 11: clock generator (2Mhz)

12: first DASL (Digital Adaptive Subscribe Loop)

20: CPU 30: voice control unit

31: first codec 32: analog switch

33: second codec 40: telephone interface unit

41: clock generator (2Mhz) 42: second DASL

50: RF interface unit

The wired / wireless connection device of a keyphone system according to an embodiment of the present invention for achieving the above object comprises a data interface unit 10 for inputting and synchronizing the voice data and the call connection data to the keyphone host device; A telephone interface unit 40 for transmitting and receiving voice data and call connection data with respect to a wired-connected telephone; An RF interface unit 50 for wirelessly transmitting and receiving voice data and call connection data to a wirelessly connected portable device; Switching the input and output path of the voice data in accordance with the control signal received to transmit and receive the voice data, the voice data input and output path between the data interface unit 10 and the telephone interface unit 40, or the data interface unit 10 Voice control unit 30 for switching the voice data input / output path between the RF interface unit 50 and the RF interface unit 50; The call connection data received through the data interface unit 10 is transmitted to the telephone interface unit 40 and the RF interface unit 50, and the telephone connection unit 40 and the RF interface unit 50 are applied through the telephone interface unit 40 and the RF interface unit 50. It transmits the call connection data to the data interface unit 10, and checks the location of the originating and incoming response of the phone and the portable device based on the call connection data to the corresponding originating and incoming response position It is characterized in that it comprises a CPU 20 for applying a control signal to the voice control unit 30 to connect the path.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, a wired / wireless connection device of a key phone system according to an exemplary embodiment of the present invention includes a data interface unit 10, a CPU 20, a voice control unit 30, a telephone interface unit 40, And an RF interface unit 50.

The data interface unit 10 is connected to the key phone main apparatus (not shown in the figure) in the B channel and the D channel, and applies the voice data applied through the B channel to the voice control unit 30 and receives the voice data from the voice control unit 30. The voice data is transmitted to the key phone main device through the B channel, the call connection data applied through the D channel to the CPU 20 and the call connection data from the CPU 20 to the key phone main device through the D channel. Do this.

The CPU 20 inputs and outputs call connection data between the data interface unit 10, the RF interface unit 50, and the telephone interface unit 40, and is applied from the RF interface unit 50 and the telephone interface unit 40. The voice controller 30 is controlled according to the call connection data.

The voice controller 30 connects the path of the voice data applied from the data interface unit 10 to the RF interface unit 50 or the telephone interface unit 40 under the control of the CPU 20 to transmit / receive voice data, or Voice data is transmitted and received by connecting a path of voice data applied from the RF interface unit 50 and the telephone interface unit 40 to the data interface unit 10 under the control of the CPU 20.

The telephone interface unit 40 synchronizes the voice data from the voice control unit 30 with the call connection data from the CPU 20 to the phone and synchronizes the voice data applied from the phone with the call connection data. 30) and the CPU 20 to perform a function.

The RF interface unit 50 modulates the voice data from the voice control unit 30 and the call connection data from the CPU 20 and transmits them wirelessly to the portable device, and transmits the voice data and the call connection data wirelessly transmitted from the mobile device. The demodulation transmits the voice data to the voice controller 30 and the call connection data to the CPU 20.

Meanwhile, the data interface unit 10 includes a clock generator 11 and a first DASL 12 (Dgital Adaptive Subscribe Loop). The clock generator 11 generates a synchronization clock of 2Mhz and applies it to the first DASL 12 for accurate and stable data transmission between the key phone main device and the terminal device. The first DASL 12 is connected to the key phone main unit via a D channel and a B channel, and performs a function of synchronizing input and output data. The clock generator generates and outputs voice data input and output through the B channel between the key phone main unit and the voice controller 30. According to the synchronization clock of 2Mhz received from the clock generator 11, the call connection data inputted and outputted through the D channel between the key phone main unit and the CPU 20 are transferred and synchronized according to the synchronization clock of the 2Mhz received from the (11). Deliver in sync.

In addition, the voice controller 30 includes a first codec 31, an analog switch 32, and a second codec 33. The first codec 31 receives the digital voice data synchronized from the data interface unit 10 and the first DASL 12, converts the analog voice data into analog voice data, and transmits the analog voice data to the analog switch 32. The analog voice data is received, converted into digital voice data, and transmitted to the first DASL 12. The analog switch 32 switches the voice data input / output path between the first codec 31 and the second codec 33 by switching the input / output path of the voice data under the control of the CPU 20, or the first codec ( 31) and the voice data input / output path between the RF interface unit 50 is switched. The second codec 33 receives analog voice data from the analog switch 32 and converts the analog voice data into digital voice data to transmit the corresponding digital voice data to the telephone interface unit 40, and the digital voice data from the telephone interface unit 40. Is converted into analog voice data, and the analog voice data is transmitted to the analog switch 32.

In addition, the telephone interface unit 40 includes a clock generator 41 and a second DASL 42. The clock generator 41 generates a 2Mhz synchronous clock and applies it to the second DASL 42 for accurate and stable data transmission between the telephone and the key phone main device. The second DASL 42 synchronizes and transmits voice data input / output between the second codec 33 of the voice controller 30 and the telephone, and synchronizes and transmits call connection data input / output between the CPU 20 and the telephone. do.

Looking at the operation of the wired and wireless connection device of the key phone system according to an embodiment of the present invention configured as described above with reference to FIG.

When an incoming call is received from an external subscriber, when the call connection data including the ring tone information applied through the D-channel from the key phone main unit is synchronized by the first DASL 12 and applied to the CPU 20, the CPU 20 ) Transmits the authorized call connection data to the second DASL 42 and the RF interface unit 50. The call connection data is transmitted to the telephone and the portable device by the second DASL 42 and the RF interface 50.

At this time, when the extension subscriber answers through the telephone, call connection data including off-hook information of the telephone is applied to the CPU 20 through the second DASL 42, and the extension subscriber is a portable device. In response to the call, call connection data including off-hook information of the portable device is applied to the CPU 20 through the RF interface unit 50.

Accordingly, the CPU 20 switches the analog switch 32 of the voice controller 30 based on the off-hook information of the call connection data applied from the second DASL 42 and the RF interface 50. When the off-hook information of the phone is input to the CPU 20, the CPU 20 controls the analog switch to generate voice data between the first codec 31 and the second codec 33. By connecting the input / output path, the voice data input / output path between the keyphone main device and the telephone is connected to provide a wired call service to the subscriber.

In addition, when off-hook information of the portable device is input to the CPU 20, the CPU 20 controls the analog switch 32 to between the first codec 31 and the RF interface 50. By connecting the voice data input and output path of the, the voice data input and output path between the key phone main unit and the portable device to provide a wireless call service to the subscriber.

On the other hand, when the extension subscriber makes an outgoing call, off-hook information of the telephone applied from the second DASL 42 or off-hook of the portable apparatus applied from the RF interface unit 50. When the call connection data including the information is applied to the CPU 20, the CPU 20 applies the call connection data to the first DASL 12, synchronizes it by the first DASL 12, and transmits the same to the key phone host device. do. Accordingly, call connection data including a dial tone is applied to the first DASL 12 from the key phone main device, and call connection data including the dial tone is synchronized by the first DASL 12. When transmitted to the CPU 20, the CPU 20 checks whether the off-hook information is authorized from the telephone or the portable device, and transmits the corresponding dial tone to the corresponding caller, thereby providing the extension subscriber with the extension subscriber. A dial tone is heard through a telephone or a portable device.

At this time, when the extension subscriber listens to the dial tone by off-hooking through the telephone, if the external subscriber dials the telephone number of the external subscriber in order to attempt a call to the external subscriber, the telephone number authorized from the telephone is applied. Call connection data including the information is synchronized to the second DASL 42 is applied to the CPU 20, the CPU 20 applies the phone number information of the call connection data to the first DASL 12, The first DASL 12 synchronizes with the key phone main device and attempts to connect the call to the external subscriber.

Accordingly, when the call path is set in response to the external subscriber, the CPU 20 off-hook information of the call connection data received from the second DASL 42 at the off-hook of the phone. By controlling the analog switch 32 of the voice control unit 30 to connect the voice data input / output paths of the first codec 31 and the second codec 33, the voice data input / output path between the telephone and the key phone main unit is established. It provides wired call service to external subscribers for extension subscribers.

In addition, when the extension subscriber listens to the dial tone by off-hooking through the mobile device, when the external subscriber dials the telephone number of the external subscriber to try to make a call to the external subscriber, the extension is authorized from the mobile device. The call connection data including the phone number information is demodulated by the RF interface unit 50 and applied to the CPU 20, and the CPU 20 applies the phone number information of the call connection data to the first DASL 12. And, by the first DASL (12) is synchronized to the key phone host device by attempting to connect to the external subscriber to the call.

Accordingly, when the call path is set in response to the external subscriber, the CPU 20 off-hook the call connection data received from the RF interface unit 50 at the time of off-hook of the portable device. Based on the information, the analog switch 32 of the voice control unit 30 is controlled to connect the voice data input / output paths of the first codec 31 and the RF interface unit 50 to thereby input and output the voice data between the key phone host device and the portable device. It provides a wireless call service to external subscribers by connecting routes.

As described above, the present invention provides both a wired call service and a wireless call service to an extension subscriber, and simultaneously provides a wired telephone and a portable device without dismantling the existing wired telephone to provide a wireless call service to the subscriber. The system can be installed and operated economically because it can be used.

Claims (4)

1. A wired / wireless connection device of a key phone system, comprising: a data interface unit (10) for inputting and synchronizing voice data and call connection data to a key phone main device; A telephone interface unit 40 for transmitting and receiving voice data and call connection data with respect to a wired-connected telephone; An RF interface unit 50 for wirelessly transmitting and receiving voice data and call connection data to a wirelessly connected portable device; Switching the input and output path of the voice data in accordance with the control signal received to transmit and receive the voice data, the voice data input and output path between the data interface unit 10 and the telephone interface unit 40, or the data interface unit 10 Voice control unit 30 for switching the voice data input / output path between the RF interface unit 50 and the RF interface unit 50; The call connection data received through the data interface unit 10 is transmitted to the telephone interface unit 40 and the RF interface unit 50, and the telephone connection unit 40 and the RF interface unit 50 are applied through the telephone interface unit 40 and the RF interface unit 50. The call connection data is transmitted to the data interface unit 10, and the voice data is checked to a corresponding originating and incoming response location by checking a location where an outgoing and incoming response is made between the phone and the portable device based on the call connection data. And a CPU (20) for applying a control signal to the voice control unit (30) to connect an input / output path. The method of claim 1, The data interface unit 10 includes a clock generator 11 for generating a synchronous clock of a predetermined frequency; The voice data input and output between the voice control unit 30 and the key phone main unit are synchronized and transmitted according to a synchronous clock from the clock generator 11, and the call connection data input and output between the CPU 20 and the key phone main unit are transmitted. And a first DASL (12) for synchronizing and transmitting according to a synchronous clock from the clock generator (11). The method of claim 1, The voice controller 30 converts the digital voice data applied from the data interface unit 10 into analog voice data and converts the analog voice data applied to the data interface unit 10 into digital voice data. (31); The analog voice data converted by the first codec 31 is converted into digital voice data and output to the telephone interface unit 40. The digital voice data input from the telephone interface unit 40 is converted into analog voice data. A second codec (33) for converting and outputting to the first codec (31); The analog switch selectively connects the first codec 31 to the second codec 33 and the RF interface unit 50 according to a control signal applied from the CPU 20 to transfer analog voice data input and output. And a wired / wireless connection device for a keyphone system, comprising: (32). The method of claim 1, The telephone interface unit 40 includes a clock generator 41 for generating a synchronous clock of a predetermined frequency; Calls inputted and outputted between a telephone connected to the CPU and the CPU 20 by synchronizing and transmitting voice data inputted and outputted between the telephone connected to the wired telephone and the voice controller 30 according to a synchronous clock from the clock generator 41. And a second DASL (42) for synchronizing and transmitting connection data according to a synchronization clock from the clock generator (41).