KR100381455B1 - A fm radio data receiver for cns, pda and an operation system thereof - Google Patents

Abstract

The present invention allows the controller of the host system to handle only the user graphic interface, which is an original function, and to form a microprocessor for controlling and operating functions related to the FM additional broadcasting in the host system. By providing FM additional broadcasting receiver for transmitting and receiving, it can process and store the data received in real time and reduce the load of the host system and transmit information using asynchronous communication between the host systems. In order to prevent performance degradation of the host system due to a large amount of communication and to reduce the amount of communication, only the information required by the host system is selected and displayed so that only the specified information is transmitted to the host system. , Error of information In order to prevent the FM additional broadcasting that sends data repeatedly to prevent repeated data is removed and only new data is transmitted, thereby maximizing the efficiency and economic efficiency of the communication device and the system that operates the overall host system, and users who use it It is characterized by providing the additional broadcasting receiver and its operating system for CNS and PD to improve reliability and satisfaction.

Description

FM additional broadcasting receiver and operating system for CNS and PD {A FM RADIO DATA RECEIVER FOR CNS, PDA AND AN OPERATION SYSTEM THEREOF}

The present invention relates to an FM additional broadcast receiver and its operating system for easily receiving FM additional broadcast information in a car navigation system (CNS) and a personal data assistant (PDA).

More specifically, the controller of a communication device such as a CNS and a PDA (hereinafter, collectively referred to as a "host system") is in charge of only a user graphic interface which is an original function. By forming a microprocessor in charge of the operation function to provide an FM additional broadcast receiver for transmitting and receiving the FM additional information by a predetermined communication packet, to process and store the data received in real time and at the same time load the host system The host system is configured to reduce information, to transfer information using asynchronous communication between the host systems, and to select and display only one piece of information to prevent the performance degradation of the host system due to a large amount of communication and to reduce the amount of communication. Specify only the information needed by Only pre-designated information is transmitted to the host system, and repeated data is removed while FM data is repeatedly transmitted to prevent data errors, and only new data is transmitted. The present invention relates to a C & M additional broadcasting receiver and its operating system for maximizing the efficiency and economic efficiency of the operating system, and improving the reliability and satisfaction for the user using the same.

In general, the CNS (Car Navigation System) is a vehicle satellite system installed in a car, which is a general vehicle, and used by a driver to receive information through road conditions or video media quickly, and a PDA (Personal Data Assistant) is a personal portable device. It is a wireless communication device that users have directly so that they can communicate with other users and text services such as stocks.

In addition, the FM additional broadcasting is to transmit digital data to the FM broadcast wave to transmit unspecified unidirectional data, which is a form of broadcasting, to various types of information, and the type of transmitted information includes text information, traffic information, It transmits various information such as weather information, stock information and additional information (refer to the accompanying drawings in FIG. 2 and FIG. 2 shows the data structure of the FM additional broadcasting information) to the user, but without limiting the wide coverage area and the number of terminals. While it has the advantage of transmitting information, the flow of information is unidirectional, which makes it difficult to apply handshaking techniques to communicate in consideration of the current operating state of the terminal. Since the operation time is not known, the information is repeatedly transmitted regardless of the update status. Direct FM additional broadcasting received at the host system will be thereby significantly degrade the performance of the main feature, a user interface of the host system itself.

In addition, conventional car stereos and cellular phones (including cellular phones and PCSs) receive only a small amount of FM additional broadcasting information broadcasted by adding various types of information in a digital form to a voice signal.

Meanwhile, as shown in FIG. 1, the receiver 21 of the conventional host system performs an overall function of the receiver 21 by using one microprocessor 18. 18) if the receiver 15 selects a frequency to receive the FM additional broadcast, and controls the decoder 16 to give the function to receive the FM additional broadcast, the decoder 16 at a predetermined time interval. The received information is transmitted to the microprocessor 18.

At this time, the microprocessor 18 checks whether the received information is error data or repeated data, and if the data is normally received, the microprocessor 18 sends the data to the data storage unit 17 and stores the data. When the user wants to confirm the data, the data selected by the operation of the key input unit 19 is displayed by the display unit 20.

Reference numeral 14 indicates an antenna for smoothly receiving the FM additional broadcasting.

However, the receiver 21 of the host system receives only the additional information of the FM broadcast provided in real time. The receiver 21 of the host system is composed of only one microprocessor, which makes it difficult to process and store data received in real time. Not only does it reduce the load on the system, but it also causes a lot of problems in executing the user graphic interface, which is a main function, thereby degrading the performance of the overall host system.

In addition, Korean Patent Nos. 2000-21018 (April 15, 2000), 1998-74986 (Nov. 05, 1998), 2000-33972 (June 15, 2000), 1998-74982 (Nov. 05, 1988), 1998-74981 (Nov. 05, 1988), 1999-50497 (Nov. 05, 1999), 1998-69209 (October 26, 1998) And terminals that require simple information processing based on characters, such as those disclosed in 1999-30772 (1999. 05. 06), use a conventional microprocessor to input a key, which is the main function of a receiver, Various information processing for display and FM additional broadcasting is possible, but also in a system implementing a user interface using a graphic as in the case of the host system, data errors and new data received in real time by a processor of the host system. Judgment of the new data, and then stored in the memory, using the stored FM additional broadcasting information and the existing data Using a single microprocessor to display data on a display that requires much more data than a stereo or a mobile phone not only causes serious performance degradation in the host system, but also in real-time received data and displays using graphic methods on the display. If the display and display are operated at the same time, the performance of the host system is greatly degraded.

In addition, as shown in Figure 2, the system operating the host system and the FM additional broadcast receiver is initialized (C1, C2) both the host system and the FM additional broadcast receiver when the power is initially supplied, the FM additional broadcast receiver Waits for an FM additional broadcast reception interrupt (C4) receives a data radio channel (hereinafter referred to as "DARC") packet (C5), and detects a communication error in the received packet. And after removing redundancy for securing reliability, extracting only the data part (C6), and configuring the transmit / receive packet (C7) to transmit the extracted data to the host system (C7). The host system transmits (C8), and when the transfer is completed, it returns to the interrupt waiting state (C4) to prepare for receiving the next DARC packet.

The host system performs its own processing (C3) routine and receives DARC data whenever a reception interrupt is generated by the data transmitted from the FM additional broadcast receiver, and then goes through the processing according to the type of information. C3) to perform the routine, in which the host system has to complete the reception process and the header analysis process even for the data that is not needed, thereby degrading the efficiency of the system.

Therefore, receiving the FM additional broadcasting by using one microprocessor mounted in the host system does not cope with the rapid development of the information society. As a result, the efficiency and efficiency of the communication device and the system operating the whole host system are reduced. At the same time, the problem of minimizing economics and deteriorating the reliability and satisfaction of the user who uses them is always implied.

The present invention has been made to solve the problems of the prior art as described above has the following object.

The present invention allows the controller of the host system to handle only the user graphic interface, which is an original function, and to form a microprocessor for controlling and operating functions related to the FM additional broadcasting in the host system. By providing FM additional broadcasting receiver for transmitting and receiving, it can process and store the data received in real time and reduce the load of the host system and transmit information using asynchronous communication between the host systems. In order to prevent performance degradation of the host system due to a large amount of communication and to reduce the amount of communication, only the information required by the host system is selected and displayed so that only the specified information is transmitted to the host system. , Error of information In order to prevent the FM additional broadcasting that sends data repeatedly to prevent repeated data is removed and only new data is transmitted, thereby maximizing the efficiency and economic efficiency of the communication device and the system that operates the overall host system, and users who use it The purpose of this is to provide additional broadcast receivers for CNS and PD to improve reliability and satisfaction.

In addition, another object of the present invention to provide a system for efficiently operating the CNS (CNS), PD (PDA) and FM (FM) additional broadcast receiver.

1 is a schematic block diagram illustrating a conventional FM additional broadcast receiver;

2 is a data structure diagram of FM additional broadcasting information;

3 is a flowchart of a process between a conventional FM additional broadcast receiver and a host system;

Figure 4 is a block diagram showing for explaining the present invention,

5 is a flowchart showing a process between an FM additional broadcast receiver and a host system of the present invention;

6 is a structure diagram of a transmission and reception packet between an FM additional broadcast receiver and a host system.

<Description of the code | symbol about the principal part of drawing>

1: FM additional broadcast receiver 2: Antenna

3: Receiver 4: Decoder

5: microprocessor 6,10: data storage unit

7: host system 8, 9: communication line

11: control unit 12: key input unit

13: display unit DARC: Data Radio Channel

CNS: Car Navigation System PDA: Personal Data Assistant

In order to achieve the above object, it will be described in detail with reference to the accompanying drawings which is a preferred embodiment of the present invention.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, terms to be described below are terms set in consideration of functions in the present invention, and may be changed according to the intention or custom of the producer, and the definitions thereof should be made based on the contents throughout the present specification.

First, as shown in Figures 4 and 5, Figure 4 is a block diagram showing to explain the present invention, Figure 5 shows a flow chart showing the process between the FM additional broadcast receiver and the host system of the present invention. .

That is, the present invention provides a host system that forms a user graphic interface as a main function, and is equipped with a separate microprocessor that controls and operates in relation to the FM additional broadcasting to transmit and receive FM additional information with the host system 7. Form an additional FM additional broadcast receiver (1), wherein the FM additional broadcast receiver (1) inputs an antenna (2) and a signal output from the antenna (2) for receiving an FM broadcast signal by itself; And a decoder for amplifying a signal to a required size to enable broadcast reception, and a decoder for determining extraction and error of digital data during FM additional broadcasting by using the signal output from the receiver 3. (4), the data storage unit 6 for temporarily storing the data normally received by the decoder 4, and whether the data output from the decoder 4 is an error. It is composed of a microprocessor (5) for determining whether or not the duplicated data, and in the case of normal data to control the signal to store the data in the data storage unit 6, and to receive, process and transmit the required data from the host system (7) will be.

Further, in order to designate only the information necessary for the host system 7 to the FM additional broadcast receiver 1, it is designated and designated using the communication line 9, and the FM additional broadcast receiver 1 is assigned to the host system 7. Only the information specified in the above is made to be transmitted from the FM additional broadcast receiver 1 to the host system 7 using the communication line 8.

The FM additional broadcast receiver 1 is configured to deliver only data that is not repeated or duplicated to the host system 7 by using an asynchronous method.

On the other hand, the host system 7 which receives the information of the FM additional broadcast receiver 1 and delivers the information to the user is the control unit 11 for the overall control of the host system 7 and the contents to be delivered to the user. The data storage unit 10 in which the data is stored, the key input unit 12 for selecting and operating the user to confirm the required data, and the data selected by the operation of the key input unit 12 are defined. The display unit 13 is displayed to the user.

The system for operating the host system 7 and the FM additional broadcast receiver 1 according to the present invention may include initializing both the host system and the FM additional broadcast receiver upon initial power-up, and the FM additional broadcast receiver may include an FM addition. Waiting for a broadcast reception interrupt and receiving a Data Radio Channel (DARC) packet while waiting for the interrupt, thereby ensuring error detection and reliability in communication among the received packets. Extracting only the data portion after removing redundancy for the network; configuring a transmission / reception packet to transmit the extracted data to a host system; and configuring the transmission / reception packet after DARC Transmits a packet to the host system, and when the transmission is completed, returns to the interrupt standby state and prepares to receive the next DARC packet. In the execution of the step, the FM additional broadcast receiver initializes its own system and waits for the mode setting packet of the FM additional broadcast receiver transmitted from the host system, and the host system initializes its own system and then Transmitting the type of information to be processed to the FM additional broadcasting receiver using a mode setting packet; and upon receiving the mode setting packet from the host system, initialize various parameters of the FM additional broadcasting receiver according to the reception setting value, If no packet is transmitted from the system for a certain period of time, the FM additional broadcasting receiver sets the default value and then executes mode setting, and waits for the FM additional broadcasting reception interrupt, and waits for the interrupt. Receives one DARC packet, the received DARC packet Analyzing the header information filtering out duplicated data and unnecessary data; and determining whether the type of the received information is required by the host system based on the reception mode received from the host system to determine whether it is needed by the host system. Information is returned to the DARC reception interrupt standby mode to receive the next DARC packet, and if the information is desired to be received by the host system, check whether it is newly updated information about the same type of information previously received. If there is no updated content in the same type of information previously received, returning to the DARC interrupt standby mode for receiving the next packet without transmitting to the host system, and when the newly updated information is received among the information desired to be received, For packets that meet the host system conditions Standing to remove the Li dondeon when (Redundancy) for error detection and reliability on the communication then made to execute is passed to the step of extracting only the data portion.

Meanwhile, the present invention may be variously modified and may take various forms in transmitting and receiving information exchange between the FM additional broadcast receiver and the host system.

It is to be understood, however, that the present invention is not limited to the specific forms referred to in the above description, but rather includes all modifications, equivalents and substitutions within the spirit and scope of the invention as defined by the appended claims. It should be understood to do.

The action and operation relationship with respect to the present invention will be described in more detail below.

First, the host system 7 which receives the information of the FM additional broadcast receiver 1 and delivers the information to the user controls the overall control of the host system 7 in the controller 11, and the controller ( By the control signal of 11), the data storage unit 10 stores the data of the content to be delivered to the user and the user selects the key input unit 12 to check the data stored in the data storage unit 10. Operated by the display unit 13 to display the data selected by the user on a predetermined condition.

The main function of the host system 7 is achieved only by the user graphic interface, and the function of transmitting and receiving FM additional information is performed by the FM additional broadcasting receiver 1 equipped with a separate microprocessor.

In this case, the FM additional broadcast receiver 1 receives the FM broadcast wave by itself through the antenna 2, and the signal output from the antenna 2 is input from the receiver 3 to select a required frequency. At the same time, the signal is amplified by a signal capable of broadcast reception, and the decoder 4 uses the signal amplified by the receiver 3 to determine the extraction and error of digital data during FM additional broadcasting.

The data storage unit 6 temporarily stores the data normally received by the decoder 4, and the microprocessor 5 determines whether the data output from the decoder 4 is an error or repeated. At the same time, in the case of normal data, a control signal is output to store data in the data storage unit 6.

In addition, the microprocessor (5) is made to receive and process the required data from the host system (7), and to transmit, and to specify only the necessary information from the host system (7) to the FM additional broadcast receiver (1) The communication line 9 to select and designate, and the FM additional broadcast receiver 1 transmits only the information designated by the host system 7 from the FM additional broadcast receiver 1 to the host system 7. (8) will be used.

In addition, the FM additional broadcast receiver 1 is made by using an asynchronous method so as to deliver only data that is not repeated or duplicated to the host system 7.

Referring to FIG. 5, a system for operating the host system 7 and the FM additional broadcast receiver 1 according to the present invention will be described.

First, the mode setting packet of the FM additional broadcast receiver 1 transmitted from the host system 7 after both the host system 7 and the FM additional broadcast receiver 1 are initialized (D1, D4) upon initial power-up. When the host system 7 initializes its own system (D4) and transmits the type of information to be processed by the host system 7 to the FM additional broadcast receiver 1 using a mode setting packet (D6), The mode setting packet is received from the system 7, and various parameters of the FM additional broadcasting receiver 1 are initialized according to the reception setting value (D2).

At this time, if there is no packet transmitted from the host system 7 for a predetermined time, the FM additional broadcast receiver 1 sets a default value and then executes mode setting D3. The FM additional broadcast receiver 1 Waits for the FM additional broadcast reception interrupt (D5).

When waiting for the interrupt D5 and receiving one DARC packet (D7), header information for filtering duplicate data and unnecessary data of the received DARC packet is analyzed (D8). Viewing and determining (D9) a reception mode received from the host system 7 as to whether the type is required by the host system 7, and receiving the next DARC packet when the information is not necessary in the host system 7. DARC reception interrupt wait mode (D5).

In this case, if the information is desired to be received by the host system 7, it is checked whether the information is newly updated with respect to the same type of information previously received (D10), and if the updated information is received with the same type of information previously received, If not, it returns to DARC interrupt standby mode D5 for receiving the next packet without transmitting to the host system 7, and in the above execution, receives the packet that meets the condition of the host system 7, i.e. For the newly updated information among the desired information, only the data portion is extracted (D11) after removing redundancy for error detection and reliability of the communication.

In order to transmit the extracted data (D11) to the host system 7, a transmission / reception packet (see FIG. 6) is configured (D12), the transmission / reception packet is configured (D12), and then DARC The packet is transmitted to the host system 7 (D13).

After the transmission (D13) is finished, it returns to the interrupt (D5) standby state to prepare to operate the next DARC packet reception.

As described above, the present invention allows the controller of the host system to handle only the user graphic interface which is an original function, and separately forms a microprocessor for controlling and operating functions related to FM additional broadcasting in the host system. By providing an FM additional broadcast receiver for transmitting and receiving FM additional information by using, the effect of reducing the load on the host system while processing and storing data received in real time, and using asynchronous communication between the host systems It has the effect of delivering information, and by specifying only the information required by the host system to display only one of the information of the information to prevent the performance degradation of the host system due to a large amount of communication and to reduce the communication amount Only the specified information above the hose It has the effect of transmitting to the system, and because of the effect of removing repeated data during the FM additional broadcasting that sends data repeatedly to prevent information error, and delivering only new data, it is a communication device that operates the whole host system It is obvious that this invention is a very useful invention that maximizes the efficiency and economic efficiency of the system, and can simultaneously achieve various effects such as reliability and satisfaction for the user.

Claims (4)

A host system for forming a user graphic interface as a main function; An FM additional broadcast receiver (1) equipped with a separate microprocessor for controlling and operating the FM additional broadcasting to transmit and receive FM additional information with the host system (7); The FM additional broadcast receiver 1 includes an antenna 2 for receiving an FM broadcast wave by itself; A receiver (3) for inputting a signal output from the antenna (2) to select a required frequency and to amplify the signal to a required size to enable broadcast reception; A decoder (4) for determining the extraction and error of digital data during FM additional broadcasting by using the signal output from the receiver (3); A data storage unit (6) for temporarily storing data normally received at the decoder (4); It is determined whether the data output from the decoder 4 is an error or repeated, and in the case of normal data, controls the signal to store the data in the data storage unit 6 and receives the required data from the host system 7. A microprocessor 5 which controls to process and transmit; C & S and FM FM broadcast receiver, characterized in that consisting of. The method of claim 1, In order to designate only the information required by the host system 7 to the FM additional broadcast receiver 1, the communication line 9 is selected and designated. The FM additional broadcast receiver 1 is configured to transmit only the information designated by the host system 7 from the FM additional broadcast receiver 1 to the host system 7 using the communication line 8. And FM add-on broadcast receiver. The method according to claim 1 or 2, The FM additional broadcast receiver (1) is the FM broadcast receiver for CN and PD, characterized in that only the data that is not repeated or duplicated to deliver to the host system (7). Initializing both the host system and the FM additional broadcast receiver when the power is initially supplied, and the FM additional broadcast receiver waits for an FM additional broadcast reception interrupt, and receives the DARC packet while waiting for the interrupt. Extracting only the data part after removing redundancy for error detection and reliability in communication in one packet, and constructing a transmit / receive packet to transmit the extracted data to a host system; And configuring the transmit / receive packet and transmitting a DARC packet to the host system, and when the transmission is completed, return to an interrupt waiting state and prepare to receive the next DARC packet; The FM additional broadcasting receiver initializing its own system and waiting for a mode setting packet of the FM additional broadcasting receiver transmitted from the host system; The host system initializing its own system and transferring the type of information to be processed by the host system to the FM additional broadcast receiver using a mode setting packet; Upon receiving the mode setting packet from the host system, various parameters of the FM additional broadcasting receiver are initialized according to the reception setting value, and if no packet is transmitted from the host system for a predetermined time, the FM additional broadcasting receiver sets the default value. Executing mode setting and waiting for an FM additional broadcast reception interrupt; Analyzing the header information filtering out duplicate data and unnecessary data of the received DARC packet when receiving one DARC packet while waiting for the interrupt; The DARC reception interrupt standby mode for receiving the next DARC packet when the received information from the host system determines whether the type of the received information is required by the host system. Returning to; If the information is desired to be received by the host system, check whether it is newly updated information about the same type of information previously received. If there is no updated content in the same type of information previously received, the next packet is not transmitted to the host system. Returning to DARC interrupt standby mode for reception; When newly updated information is received among the information desired to be received in the above, only the data portion is extracted after removing the redundancy for detecting the communication error and securing the reliability for the packet meeting the host system condition. Doing; Operating system of the FM broadcast receiver for FM and PD, characterized in that the transmission and execution.