Finely adjustable signal wave forming circuit including complementary clock signal counters
A variable wave forming circuit is provided which produces signals of various waveforms (e.g., sine, triangular or trapezoidal waves) and various frequencies. A random access memory (memory means) 121 to store wave formation information on waveform is provided. According to the wave formation inform...
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| creator | KAWAMURA MASANOBU KAMADA SEIJI YASHIKI NAOKI KIDA HIROYUKI TOJO TOSHIYUKI SHIBASAKI NOBUO MATSUURA HIROYUKI OHKUBO TAKESHI |
| description | A variable wave forming circuit is provided which produces signals of various waveforms (e.g., sine, triangular or trapezoidal waves) and various frequencies. A random access memory (memory means) 121 to store wave formation information on waveform is provided. According to the wave formation information stored in the memory means, the updating or keeping of a digital value in an increment/decrement circuit 123 is controlled and the digital value is digital/analog-converted by a digital/analog (D/A) conversion circuit 124, which is controlled by a digital value control means that includes the increment/decrement circuit 123. By writing appropriate wave formation information into the memory means, it is possible to produce signals of desired waveforms. |
| format | Patent |
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A random access memory (memory means) 121 to store wave formation information on waveform is provided. According to the wave formation information stored in the memory means, the updating or keeping of a digital value in an increment/decrement circuit 123 is controlled and the digital value is digital/analog-converted by a digital/analog (D/A) conversion circuit 124, which is controlled by a digital value control means that includes the increment/decrement circuit 123. By writing appropriate wave formation information into the memory means, it is possible to produce signals of desired waveforms.</description><edition>6</edition><language>eng</language><subject>BASIC ELECTRONIC CIRCUITRY ; CALCULATING ; COMPUTING ; COUNTING ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRIC DIGITAL DATA PROCESSING ; ELECTRICITY ; GENERATION OF NOISE BY SUCH CIRCUITS ; GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER ; PHYSICS ; PULSE TECHNIQUE ; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><creationdate>1995</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=19950523&DB=EPODOC&CC=US&NR=5418734A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19950523&DB=EPODOC&CC=US&NR=5418734A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KAWAMURA; MASANOBU</creatorcontrib><creatorcontrib>KAMADA; SEIJI</creatorcontrib><creatorcontrib>YASHIKI; NAOKI</creatorcontrib><creatorcontrib>KIDA; HIROYUKI</creatorcontrib><creatorcontrib>TOJO; TOSHIYUKI</creatorcontrib><creatorcontrib>SHIBASAKI; NOBUO</creatorcontrib><creatorcontrib>MATSUURA; HIROYUKI</creatorcontrib><creatorcontrib>OHKUBO; TAKESHI</creatorcontrib><title>Finely adjustable signal wave forming circuit including complementary clock signal counters</title><description>A variable wave forming circuit is provided which produces signals of various waveforms (e.g., sine, triangular or trapezoidal waves) and various frequencies. A random access memory (memory means) 121 to store wave formation information on waveform is provided. According to the wave formation information stored in the memory means, the updating or keeping of a digital value in an increment/decrement circuit 123 is controlled and the digital value is digital/analog-converted by a digital/analog (D/A) conversion circuit 124, which is controlled by a digital value control means that includes the increment/decrement circuit 123. By writing appropriate wave formation information into the memory means, it is possible to produce signals of desired waveforms.</description><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRIC DIGITAL DATA PROCESSING</subject><subject>ELECTRICITY</subject><subject>GENERATION OF NOISE BY SUCH CIRCUITS</subject><subject>GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER</subject><subject>PHYSICS</subject><subject>PULSE TECHNIQUE</subject><subject>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1995</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqFi7sKwkAQANNYiPoN7g9YSCLaBjHYq5VFWDebcLq3d9xDyd8LorXVwDAzLa6NUZYRsLvnmPAmDNEMigIvfDL0LlijA5AJlE0CoyS5-xhnvbBlTRhGIHH0-J3ksiYOcV5MepTIiy9nxbI5nPfHFXvXcvRIrJzay2lTrXfbsqrL_8Ub9oc7wg</recordid><startdate>19950523</startdate><enddate>19950523</enddate><creator>KAWAMURA; MASANOBU</creator><creator>KAMADA; SEIJI</creator><creator>YASHIKI; NAOKI</creator><creator>KIDA; HIROYUKI</creator><creator>TOJO; TOSHIYUKI</creator><creator>SHIBASAKI; NOBUO</creator><creator>MATSUURA; HIROYUKI</creator><creator>OHKUBO; TAKESHI</creator><scope>EVB</scope></search><sort><creationdate>19950523</creationdate><title>Finely adjustable signal wave forming circuit including complementary clock signal counters</title><author>KAWAMURA; MASANOBU ; KAMADA; SEIJI ; YASHIKI; NAOKI ; KIDA; HIROYUKI ; TOJO; TOSHIYUKI ; SHIBASAKI; NOBUO ; MATSUURA; HIROYUKI ; OHKUBO; TAKESHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US5418734A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1995</creationdate><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COUNTING</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRIC DIGITAL DATA PROCESSING</topic><topic>ELECTRICITY</topic><topic>GENERATION OF NOISE BY SUCH CIRCUITS</topic><topic>GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER</topic><topic>PHYSICS</topic><topic>PULSE TECHNIQUE</topic><topic>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</topic><toplevel>online_resources</toplevel><creatorcontrib>KAWAMURA; MASANOBU</creatorcontrib><creatorcontrib>KAMADA; SEIJI</creatorcontrib><creatorcontrib>YASHIKI; NAOKI</creatorcontrib><creatorcontrib>KIDA; HIROYUKI</creatorcontrib><creatorcontrib>TOJO; TOSHIYUKI</creatorcontrib><creatorcontrib>SHIBASAKI; NOBUO</creatorcontrib><creatorcontrib>MATSUURA; HIROYUKI</creatorcontrib><creatorcontrib>OHKUBO; TAKESHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KAWAMURA; MASANOBU</au><au>KAMADA; SEIJI</au><au>YASHIKI; NAOKI</au><au>KIDA; HIROYUKI</au><au>TOJO; TOSHIYUKI</au><au>SHIBASAKI; NOBUO</au><au>MATSUURA; HIROYUKI</au><au>OHKUBO; TAKESHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Finely adjustable signal wave forming circuit including complementary clock signal counters</title><date>1995-05-23</date><risdate>1995</risdate><abstract>A variable wave forming circuit is provided which produces signals of various waveforms (e.g., sine, triangular or trapezoidal waves) and various frequencies. A random access memory (memory means) 121 to store wave formation information on waveform is provided. According to the wave formation information stored in the memory means, the updating or keeping of a digital value in an increment/decrement circuit 123 is controlled and the digital value is digital/analog-converted by a digital/analog (D/A) conversion circuit 124, which is controlled by a digital value control means that includes the increment/decrement circuit 123. By writing appropriate wave formation information into the memory means, it is possible to produce signals of desired waveforms.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRONIC CIRCUITRY CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY GENERATION OF NOISE BY SUCH CIRCUITS GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER PHYSICS PULSE TECHNIQUE TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
| title | Finely adjustable signal wave forming circuit including complementary clock signal counters |
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