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41. 发明专利

JPH11304528A CAR NAVIGATOR 失效
公开(公告)号：JPH11304528A
公开(公告)日：1999-11-05
申请号：JP12966898
申请日：1998-04-24
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAWASAKI AKIHISA
IPC分类号： G01C21/00 , G08G1/0969 , G10L15/00 , G10L15/06 , G10L15/22 , G10L15/28
摘要： PROBLEM TO BE SOLVED: To provide a route guide information easy to understand for the user by vocally notifying information around the vehicle and objects at right/left turn points. SOLUTION: Road information, incidental facilities to the road and position information and names of objects such as shops are stored in a map database of the car navigator, the location and running direction of the vehicle are obtd. by a GPS receiver 2 or various sensors, information of the destination and routing points, etc., are inputted to search for a route on the map database 1, objects such as facilities and shops near an intersection within specified range from the current location of the vehicle on the route are obtd. according to the route search result, a guide sentence showing the relative position of the route to the object and running direction (e.g. 'obliquely right before a convenient store') is prepared, a guide voice database 5 is retrieved to convert the guide sentence to voice data, and the voice data is outputted from a speaker to guide the route vocally. The relative position of the object to the route can be easily understood and route guide each to find the running direction can be realized.

42. 发明专利

JPH11265146A METHOD AND DEVICE FOR GENERATING AUTHENTICATOR 失效
公开(公告)号：JPH11265146A
公开(公告)日：1999-09-28
申请号：JP8246698
申请日：1998-03-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAWASAKI AKIHISA
IPC分类号： G09C1/00
摘要： PROBLEM TO BE SOLVED: To improve cryptographic strength by generating an authenticator by composing a method of respective processes for inputting one cryptographic key and selecting any arbitrary functions out of plural cryptographic functions based on a flag, and performing enciphering by plural cryptographic functions selected by the flag. SOLUTION: This method is composed of respective processes for inputting one enciphering key K and selecting any arbitrary functions f1 and f3 out of plural cryptographic functions based on the flag, and enciphering is performed by the plural cryptographic functions selected by the flag. By predetermining the plural cryptographic functions and the means (flag) for selecting them and generating the authenticator while arbitrarily selecting the cryptographic functions, even when the cryptographic functions are disclosed similarly to the conventional authenticator generating method, the strength of the authenticator can be easily improved without managing the plural keys and without providing the cryptographic function with any deciphering function (function provided with the cryptographic function and called deciphering function as well) or the like.

43. 发明专利

JPH08221693A NAVIGATION SYSTEM 失效
公开(公告)号：JPH08221693A
公开(公告)日：1996-08-30
申请号：JP2275995
申请日：1995-02-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAWASAKI AKIHISA , TATEDA YOSHIFUMI
IPC分类号： G09B29/00 , G01C21/00 , G01S5/02 , G01S19/14 , G08G1/0962 , G08G1/0969
摘要： PURPOSE: To obtain real-time information concerned in facilities by retrieving the communication number corresponding to the facilities which need information, from a storage device and communicating with the facilities directly through a communication equipment according to the communication number. CONSTITUTION: This system has an arithmetic unit 15 which retrieves the number of communication with the facilities specified by an input device 12, communicates with the facilities through the communication equipment 13 according to the retrieved communication number, and outputs the information obtained by the communication with the facilities through an output device 14. Then, a user specifies the facilities which need information, through the input device 12. The communication number corresponding to the specified facilities is retrieved from the storage device 11, and a communication with the facilities is made through the communication device 13 according to the retrieved communication number to output the information obtained by the communication with the facilities to the output device 14. Therefore, by communicating with the facilities specified on a mobile station side through the communication equipment 13 according to the communication number, the communication with the target facilities becomes possible through easy operation, and information on the facilities can be obtained in real time.

44. 发明专利

JPH08136636A SATELLITE SIGNAL TRACKING METHOD OF GPS RECEIVER 失效
公开(公告)号：JPH08136636A
公开(公告)日：1996-05-31
申请号：JP27912894
申请日：1994-11-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TATEDA YOSHIFUMI , KAWASAKI AKIHISA
IPC分类号： G01S19/24 , G01S5/14
摘要： PURPOSE: To make an inexpensive reference oscillator and inexpensive microprocessor usable so as to reduce the power consumption of a GPS receiver by dividing the frequency conversion performed by means of numerically controlled oscillators into a plurality of stages. CONSTITUTION: Carrier tracking is performed in two stages by performing frequency conversion 35 and 40 by using numerically controlled oscillators 34 and 39. In the frequency conversion 35, the frequencies of signals having frequencies of about 100kHz can be accurately converted, because the signal sampling period is as short as about 3.79μsec. The oscillator 34 can be constituted of a simple circuit and the operating speed of the oscillator 34 can be easily increased, because the oscillator 34 does not require any higher accuracy than 3bits while the output period is as short as about 0.379μsec. In the frequency conversion 40, the frequencies of signals having frequencies of about

45. 发明专利

JPH0854246A MAP MATCHING METHOD FOR NAVIGATION SYSTEM 失效
公开(公告)号：JPH0854246A
公开(公告)日：1996-02-27
申请号：JP18949294
申请日：1994-08-11
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TATEDA YOSHIFUMI , KAWASAKI AKIHISA , SATO IZUMI
IPC分类号： G01C21/00 , G01S5/02 , G01S19/14 , G01S19/40 , G01S19/50 , G08G1/0969 , G01S5/14
摘要： PURPOSE:To obtain a map matching method for navigation system of automobile employing a GPS receiver in which the positional reliability is enhanced while prolonging the matching internal by solving such problem as mistaking the road in an urban area or having little chance for matching. CONSTITUTION:Positioning results are inputted from a GPS receiver to a result input 1 and the matching state is judged at the step 10. In case of mismatching, conditions for starting the matching are evaluated at the step A4. In case of matching, conditions for sustaining the matching is evaluated and a position is estimated at the step B11 thus realizing a map matching where a highly reliable matching interval is long.

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