CAPACITY EXPANDER FOR TELEPHONE LINE
A private telephone line expander is disclosed which receives two analog voice inputs. Both input signals are digitized, compressed using full period splicing, and converted back to analog for transmission. One is shifted to the upper half of the telephone line bandwidth. The other remains in the lo...
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| creator | JAMES M. KRESSE LESTER H. STAPLES |
| description | A private telephone line expander is disclosed which receives two analog voice inputs. Both input signals are digitized, compressed using full period splicing, and converted back to analog for transmission. One is shifted to the upper half of the telephone line bandwidth. The other remains in the lower half. Both are transmitted on the same telephone line. When received both signals are expanded to normal telephone bandwidth and can be connected to two different telephones. DTMF signals are transmitted with each voice transmission. |
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| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_AU585782BB2</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>AU585782BB2</sourcerecordid><originalsourceid>FETCH-epo_espacenet_AU585782BB23</originalsourceid><addsrcrecordid>eNrjZFBxdgxwdPYMiVRwjQhw9HNxDVJw8w9SCHH1cQ3w8PdzVfDx9HPlYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxjqGmFqbmFkZOTkbGRCgBADZHIrs</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>CAPACITY EXPANDER FOR TELEPHONE LINE</title><source>esp@cenet</source><creator>JAMES M. KRESSE ; LESTER H. STAPLES</creator><creatorcontrib>JAMES M. KRESSE ; LESTER H. STAPLES</creatorcontrib><description>A private telephone line expander is disclosed which receives two analog voice inputs. Both input signals are digitized, compressed using full period splicing, and converted back to analog for transmission. One is shifted to the upper half of the telephone line bandwidth. The other remains in the lower half. Both are transmitted on the same telephone line. When received both signals are expanded to normal telephone bandwidth and can be connected to two different telephones. DTMF signals are transmitted with each voice transmission.</description><edition>4</edition><language>eng</language><subject>ACOUSTICS ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; MULTIPLEX COMMUNICATION ; MUSICAL INSTRUMENTS ; PHYSICS ; SELECTING ; SPEECH ANALYSIS OR SYNTHESIS ; SPEECH OR AUDIO CODING OR DECODING ; SPEECH OR VOICE PROCESSING ; SPEECH RECOGNITION ; TRANSMISSION</subject><creationdate>1989</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&date=19890622&DB=EPODOC&CC=AU&NR=585782B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19890622&DB=EPODOC&CC=AU&NR=585782B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JAMES M. KRESSE</creatorcontrib><creatorcontrib>LESTER H. STAPLES</creatorcontrib><title>CAPACITY EXPANDER FOR TELEPHONE LINE</title><description>A private telephone line expander is disclosed which receives two analog voice inputs. Both input signals are digitized, compressed using full period splicing, and converted back to analog for transmission. One is shifted to the upper half of the telephone line bandwidth. The other remains in the lower half. Both are transmitted on the same telephone line. When received both signals are expanded to normal telephone bandwidth and can be connected to two different telephones. DTMF signals are transmitted with each voice transmission.</description><subject>ACOUSTICS</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>MULTIPLEX COMMUNICATION</subject><subject>MUSICAL INSTRUMENTS</subject><subject>PHYSICS</subject><subject>SELECTING</subject><subject>SPEECH ANALYSIS OR SYNTHESIS</subject><subject>SPEECH OR AUDIO CODING OR DECODING</subject><subject>SPEECH OR VOICE PROCESSING</subject><subject>SPEECH RECOGNITION</subject><subject>TRANSMISSION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1989</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFBxdgxwdPYMiVRwjQhw9HNxDVJw8w9SCHH1cQ3w8PdzVfDx9HPlYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxjqGmFqbmFkZOTkbGRCgBADZHIrs</recordid><startdate>19890622</startdate><enddate>19890622</enddate><creator>JAMES M. KRESSE</creator><creator>LESTER H. STAPLES</creator><scope>EVB</scope></search><sort><creationdate>19890622</creationdate><title>CAPACITY EXPANDER FOR TELEPHONE LINE</title><author>JAMES M. KRESSE ; LESTER H. STAPLES</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_AU585782BB23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1989</creationdate><topic>ACOUSTICS</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>MULTIPLEX COMMUNICATION</topic><topic>MUSICAL INSTRUMENTS</topic><topic>PHYSICS</topic><topic>SELECTING</topic><topic>SPEECH ANALYSIS OR SYNTHESIS</topic><topic>SPEECH OR AUDIO CODING OR DECODING</topic><topic>SPEECH OR VOICE PROCESSING</topic><topic>SPEECH RECOGNITION</topic><topic>TRANSMISSION</topic><toplevel>online_resources</toplevel><creatorcontrib>JAMES M. KRESSE</creatorcontrib><creatorcontrib>LESTER H. STAPLES</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>JAMES M. KRESSE</au><au>LESTER H. STAPLES</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CAPACITY EXPANDER FOR TELEPHONE LINE</title><date>1989-06-22</date><risdate>1989</risdate><abstract>A private telephone line expander is disclosed which receives two analog voice inputs. Both input signals are digitized, compressed using full period splicing, and converted back to analog for transmission. One is shifted to the upper half of the telephone line bandwidth. The other remains in the lower half. Both are transmitted on the same telephone line. When received both signals are expanded to normal telephone bandwidth and can be connected to two different telephones. DTMF signals are transmitted with each voice transmission.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ACOUSTICS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION MUSICAL INSTRUMENTS PHYSICS SELECTING SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION TRANSMISSION |
| title | CAPACITY EXPANDER FOR TELEPHONE LINE |
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