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1. 发明专利

FI119616B 未知
公开(公告)号：FI119616B
公开(公告)日：2009-01-15
申请号：FI20031505
申请日：2003-10-15
申请人： LAAMANEN HEIKKI TAPIO , GOWDA UMESH CHANDRA
发明人： LAAMANEN HEIKKI TAPIO , GOWDA UMESH CHANDRA
IPC分类号： H04M19/00 , H04B3/44 , H04B10/272
摘要： The objective of the invention is to devise a method for establishing a subscriber connection and a system applying the method. According to the method, a digital subscriber connection consisting of a composition of an optical fiber and a metallic pair cable is implemented by transporting a digital information stream in two directions over an optical fiber (2) between a central site and equipment (103) which is connected to the metallic pair cable (4) of each subscriber. According to the invention, the information streams transmitted and received over the pair cables are multiplexed onto the optical fiber by using a multiplexing method of optical signals, whereby the information streams originating from different subscribers are combined onto the fiber by means of passive optical elements and whereby the information streams transmitted from the central site are distributed to each subscriber-specific optical-to-electric conversion element (105) by means of passive optical elements. Thus the multiplexing and demultiplexing need no active multiplexing/demultiplexing electronics common to all subscribers, but rather the active electronics of the conversion elements (105) of each subscriber operates independently without being dependent on the state of operation of other subscriber's conversion elements. Hence the operating power for said electronics can be fed from the respective subscriber through the subscriber's pair cable.

2. 发明专利

FI20031505A0 未知
公开(公告)号：FI20031505A0
公开(公告)日：2003-10-15
申请号：FI20031505
申请日：2003-10-15
申请人： LAAMANEN HEIKKI TAPIO , GOWDA UMESH CHANDRA
发明人： LAAMANEN HEIKKI TAPIO , GOWDA UMESH CHANDRA
IPC分类号： H04B10/272 , H04M , H04B
摘要： The objective of the invention is to devise a method for establishing a subscriber connection and a system applying the method. According to the method, a digital subscriber connection consisting of a composition of an optical fiber and a metallic pair cable is implemented by transporting a digital information stream in two directions over an optical fiber (2) between a central site and equipment (103) which is connected to the metallic pair cable (4) of each subscriber. According to the invention, the information streams transmitted and received over the pair cables are multiplexed onto the optical fiber by using a multiplexing method of optical signals, whereby the information streams originating from different subscribers are combined onto the fiber by means of passive optical elements and whereby the information streams transmitted from the central site are distributed to each subscriber-specific optical-to-electric conversion element (105) by means of passive optical elements. Thus the multiplexing and demultiplexing need no active multiplexing/demultiplexing electronics common to all subscribers, but rather the active electronics of the conversion elements (105) of each subscriber operates independently without being dependent on the state of operation of other subscriber's conversion elements. Hence the operating power for said electronics can be fed from the respective subscriber through the subscriber's pair cable.

3. 发明专利

FI20031505A 未知
公开(公告)号：FI20031505A
公开(公告)日：2005-04-16
申请号：FI20031505
申请日：2003-10-15
申请人： LAAMANEN HEIKKI TAPIO , GOWDA UMESH CHANDRA
发明人： LAAMANEN HEIKKI TAPIO , GOWDA UMESH CHANDRA
IPC分类号： H04B10/272 , H04M19/00 , H04Q3/44
摘要： The objective of the invention is to devise a method for establishing a subscriber connection and a system applying the method. According to the method, a digital subscriber connection consisting of a composition of an optical fiber and a metallic pair cable is implemented by transporting a digital information stream in two directions over an optical fiber (2) between a central site and equipment (103) which is connected to the metallic pair cable (4) of each subscriber. According to the invention, the information streams transmitted and received over the pair cables are multiplexed onto the optical fiber by using a multiplexing method of optical signals, whereby the information streams originating from different subscribers are combined onto the fiber by means of passive optical elements and whereby the information streams transmitted from the central site are distributed to each subscriber-specific optical-to-electric conversion element (105) by means of passive optical elements. Thus the multiplexing and demultiplexing need no active multiplexing/demultiplexing electronics common to all subscribers, but rather the active electronics of the conversion elements (105) of each subscriber operates independently without being dependent on the state of operation of other subscriber's conversion elements. Hence the operating power for said electronics can be fed from the respective subscriber through the subscriber's pair cable.

4. 发明专利

FI111898B 未知
公开(公告)号：FI111898B
公开(公告)日：2003-09-30
申请号：FI20011665
申请日：2001-08-17
申请人： GOWDA UMESH CHANDRA , LAAMANEN HEIKKI TAPIO
发明人： GOWDA UMESH CHANDRA , LAAMANEN HEIKKI TAPIO
IPC分类号： H04B10/272 , H04L12/28 , H04M11/06 , H04B10/20
摘要： The objective of the invention is a method for establishing a subscriber connection and a system applying the method. According to the method, a digital subscriber connection of the FTTC type, consisting of a composition of an optical fiber and a metallic pair cable, is implemented by means of subscriber-specific DSL modems, whereby (a) a subscriber connection comprises an optical fiber (3), a metallic pair cable (6), and equipment (8) adapting the said fiber and cable to each other so that the optical fiber goes towards the telephone exchange or conentrator and the pair cable goes towards the subscriber, and (b) each DSL modem comprises digital transmitter and receiver elements (21,22) connected functionally to analog parts (5) that are adapted to convert (i) the digital output signal of the digital transmitter element (21) into analog form and (ii) the analog signal intended for the receiver element (22) into digital form. In accordance with the method, the analog parts (5) of the DSL modems are inserted into the said equipment (8), the digital signal produced by the DSL modem transmitter element (21) is transferred to the respective analog parts (5) through the optical fiber (3), and the digital signal produced by the DSL modem analog parts (5) is transferred to the respective digital receiver element (22) through the said fiber.

5. 发明专利

FI20011665A 未知
公开(公告)号：FI20011665A
公开(公告)日：2003-02-18
申请号：FI20011665
申请日：2001-08-17
申请人： GOWDA UMESH CHANDRA , LAAMANEN HEIKKI TAPIO
发明人： GOWDA UMESH CHANDRA , LAAMANEN HEIKKI TAPIO
IPC分类号： H04B10/272 , H04L12/28 , H04M
摘要： The objective of the invention is a method for establishing a subscriber connection and a system applying the method. According to the method, a digital subscriber connection of the FTTC type, consisting of a composition of an optical fiber and a metallic pair cable, is implemented by means of subscriber-specific DSL modems, whereby (a) a subscriber connection comprises an optical fiber (3), a metallic pair cable (6), and equipment (8) adapting the said fiber and cable to each other so that the optical fiber goes towards the telephone exchange or conentrator and the pair cable goes towards the subscriber, and (b) each DSL modem comprises digital transmitter and receiver elements (21,22) connected functionally to analog parts (5) that are adapted to convert (i) the digital output signal of the digital transmitter element (21) into analog form and (ii) the analog signal intended for the receiver element (22) into digital form. In accordance with the method, the analog parts (5) of the DSL modems are inserted into the said equipment (8), the digital signal produced by the DSL modem transmitter element (21) is transferred to the respective analog parts (5) through the optical fiber (3), and the digital signal produced by the DSL modem analog parts (5) is transferred to the respective digital receiver element (22) through the said fiber.

6. 发明专利

FI20011665A0 未知
公开(公告)号：FI20011665A0
公开(公告)日：2001-08-17
申请号：FI20011665
申请日：2001-08-17
申请人： GOWDA UMESH CHANDRA
发明人： GOWDA UMESH CHANDRA
IPC分类号： H04B10/272 , H04L12/28 , H04J
摘要： The objective of the invention is a method for establishing a subscriber connection and a system applying the method. According to the method, a digital subscriber connection of the FTTC type, consisting of a composition of an optical fiber and a metallic pair cable, is implemented by means of subscriber-specific DSL modems, whereby (a) a subscriber connection comprises an optical fiber (3), a metallic pair cable (6), and equipment (8) adapting the said fiber and cable to each other so that the optical fiber goes towards the telephone exchange or conentrator and the pair cable goes towards the subscriber, and (b) each DSL modem comprises digital transmitter and receiver elements (21,22) connected functionally to analog parts (5) that are adapted to convert (i) the digital output signal of the digital transmitter element (21) into analog form and (ii) the analog signal intended for the receiver element (22) into digital form. In accordance with the method, the analog parts (5) of the DSL modems are inserted into the said equipment (8), the digital signal produced by the DSL modem transmitter element (21) is transferred to the respective analog parts (5) through the optical fiber (3), and the digital signal produced by the DSL modem analog parts (5) is transferred to the respective digital receiver element (22) through the said fiber.

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