HYBRID SCM OPTICAL TRANSMITTER

HYBRID SCM OPTICAL TRANSMITTER

PURPOSE: To utilize effectively a transmission band and to reduce clipping deterioration by an analog modulation signal. CONSTITUTION: The optical transmitter is provided with a signal limit section 9 applying a limit to an analog modulation signal and the analog modulation signal and a digital modu...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: MASUDA SHIGEFUMI
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator MASUDA SHIGEFUMI
description PURPOSE: To utilize effectively a transmission band and to reduce clipping deterioration by an analog modulation signal. CONSTITUTION: The optical transmitter is provided with a signal limit section 9 applying a limit to an analog modulation signal and the analog modulation signal and a digital modulation signal being an output of the section 9 are subject to frequency multiplex processing, or with a signal limit section 9 applying a limit to a hybrid signal AM-QAM, or with a delay circuit 10 delaying the hybrid signal by a prescribed time delay and a clipping compensation section 11 detecting predicted clip intensity of the hybrid signal for a delayed period thereby generating a clipping compensation signal to block the clipping state of the laser beam output. Preferably, a clipping monitor control section 8 is provided, which detects the clipping state of a laser beam based on a monitor signal MS of the laser beam output and generates a control signal CS used to block the clipping state based on the detection, controls the limit of the signal limit section 9 or the compensation quantity of the clipping compensation section 11.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JPH08204635A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JPH08204635A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JPH08204635A3</originalsourceid><addsrcrecordid>eNrjZJDziHQK8nRRCHb2VfAPCPF0dvRRCAly9Av29QwJcQ3iYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxXgEeBhZGBiZmxqaOxsSoAQDCmSGt</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>HYBRID SCM OPTICAL TRANSMITTER</title><source>esp@cenet</source><creator>MASUDA SHIGEFUMI</creator><creatorcontrib>MASUDA SHIGEFUMI</creatorcontrib><description>PURPOSE: To utilize effectively a transmission band and to reduce clipping deterioration by an analog modulation signal. CONSTITUTION: The optical transmitter is provided with a signal limit section 9 applying a limit to an analog modulation signal and the analog modulation signal and a digital modulation signal being an output of the section 9 are subject to frequency multiplex processing, or with a signal limit section 9 applying a limit to a hybrid signal AM-QAM, or with a delay circuit 10 delaying the hybrid signal by a prescribed time delay and a clipping compensation section 11 detecting predicted clip intensity of the hybrid signal for a delayed period thereby generating a clipping compensation signal to block the clipping state of the laser beam output. Preferably, a clipping monitor control section 8 is provided, which detects the clipping state of a laser beam based on a monitor signal MS of the laser beam output and generates a control signal CS used to block the clipping state based on the detection, controls the limit of the signal limit section 9 or the compensation quantity of the clipping compensation section 11.</description><edition>6</edition><language>eng</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; MULTIPLEX COMMUNICATION ; TRANSMISSION</subject><creationdate>1996</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19960809&amp;DB=EPODOC&amp;CC=JP&amp;NR=H08204635A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19960809&amp;DB=EPODOC&amp;CC=JP&amp;NR=H08204635A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MASUDA SHIGEFUMI</creatorcontrib><title>HYBRID SCM OPTICAL TRANSMITTER</title><description>PURPOSE: To utilize effectively a transmission band and to reduce clipping deterioration by an analog modulation signal. CONSTITUTION: The optical transmitter is provided with a signal limit section 9 applying a limit to an analog modulation signal and the analog modulation signal and a digital modulation signal being an output of the section 9 are subject to frequency multiplex processing, or with a signal limit section 9 applying a limit to a hybrid signal AM-QAM, or with a delay circuit 10 delaying the hybrid signal by a prescribed time delay and a clipping compensation section 11 detecting predicted clip intensity of the hybrid signal for a delayed period thereby generating a clipping compensation signal to block the clipping state of the laser beam output. Preferably, a clipping monitor control section 8 is provided, which detects the clipping state of a laser beam based on a monitor signal MS of the laser beam output and generates a control signal CS used to block the clipping state based on the detection, controls the limit of the signal limit section 9 or the compensation quantity of the clipping compensation section 11.</description><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>MULTIPLEX COMMUNICATION</subject><subject>TRANSMISSION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1996</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJDziHQK8nRRCHb2VfAPCPF0dvRRCAly9Av29QwJcQ3iYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxXgEeBhZGBiZmxqaOxsSoAQDCmSGt</recordid><startdate>19960809</startdate><enddate>19960809</enddate><creator>MASUDA SHIGEFUMI</creator><scope>EVB</scope></search><sort><creationdate>19960809</creationdate><title>HYBRID SCM OPTICAL TRANSMITTER</title><author>MASUDA SHIGEFUMI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH08204635A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1996</creationdate><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>MULTIPLEX COMMUNICATION</topic><topic>TRANSMISSION</topic><toplevel>online_resources</toplevel><creatorcontrib>MASUDA SHIGEFUMI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MASUDA SHIGEFUMI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>HYBRID SCM OPTICAL TRANSMITTER</title><date>1996-08-09</date><risdate>1996</risdate><abstract>PURPOSE: To utilize effectively a transmission band and to reduce clipping deterioration by an analog modulation signal. CONSTITUTION: The optical transmitter is provided with a signal limit section 9 applying a limit to an analog modulation signal and the analog modulation signal and a digital modulation signal being an output of the section 9 are subject to frequency multiplex processing, or with a signal limit section 9 applying a limit to a hybrid signal AM-QAM, or with a delay circuit 10 delaying the hybrid signal by a prescribed time delay and a clipping compensation section 11 detecting predicted clip intensity of the hybrid signal for a delayed period thereby generating a clipping compensation signal to block the clipping state of the laser beam output. Preferably, a clipping monitor control section 8 is provided, which detects the clipping state of a laser beam based on a monitor signal MS of the laser beam output and generates a control signal CS used to block the clipping state based on the detection, controls the limit of the signal limit section 9 or the compensation quantity of the clipping compensation section 11.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_JPH08204635A
source esp@cenet
subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
title HYBRID SCM OPTICAL TRANSMITTER
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-02T18%3A36%3A59IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=MASUDA%20SHIGEFUMI&rft.date=1996-08-09&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJPH08204635A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true