Frequency stabilisation of a current controlled oscillator used as a low frequency clock generator in a portable radio device
A current-controlled oscillator (1) produces a sawtooth wave, oscillating between upper (V H) and lower (V L) voltage limits. The oscillator output (201) is connected to a frequency comparator circuit (2) which receives a reference frequency (202). The output of the frequency comparator passes to a...
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| creator | RIBAS, RAYMOND ARRIORDAZ, ALEXANDRE LABARRE, ERIC BONNARDOT, ANDRE |
| description | A current-controlled oscillator (1) produces a sawtooth wave, oscillating between upper (V H) and lower (V L) voltage limits. The oscillator output (201) is connected to a frequency comparator circuit (2) which receives a reference frequency (202). The output of the frequency comparator passes to a resistor (4) via a multi-bit channel (231/241). The value of the resistor may be adjusted by a bit word (241). The resistor is connected (31) to a temperature comparator (5). This in turn is connected (32) to the current-controlled oscillator.
Eine Vorrichtung zur Frequenzstabilisierung eines stromgesteuerten Oszillatorschaltkreises (1) enthält eine Vergleichseinheit (2) zum Vergleichen der Oszillatorfrequenz (201) mit einer Referenzfrequenz (202). Anhand des Vergleichs wird ein Widerstandsmittel (4) eingestellt, durch welches die Steuerstromstärke (31,32) des Oszillatorschaltkreises und damit seine Frequenz gesteuert wird. |
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Eine Vorrichtung zur Frequenzstabilisierung eines stromgesteuerten Oszillatorschaltkreises (1) enthält eine Vergleichseinheit (2) zum Vergleichen der Oszillatorfrequenz (201) mit einer Referenzfrequenz (202). Anhand des Vergleichs wird ein Widerstandsmittel (4) eingestellt, durch welches die Steuerstromstärke (31,32) des Oszillatorschaltkreises und damit seine Frequenz gesteuert wird.</description><edition>7</edition><language>eng ; fre ; ger</language><subject>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES ; BASIC ELECTRONIC CIRCUITRY ; ELECTRICITY ; PULSE TECHNIQUE</subject><creationdate>2005</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=20050316&DB=EPODOC&CC=EP&NR=1515443A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050316&DB=EPODOC&CC=EP&NR=1515443A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>RIBAS, RAYMOND</creatorcontrib><creatorcontrib>ARRIORDAZ, ALEXANDRE</creatorcontrib><creatorcontrib>LABARRE, ERIC</creatorcontrib><creatorcontrib>BONNARDOT, ANDRE</creatorcontrib><title>Frequency stabilisation of a current controlled oscillator used as a low frequency clock generator in a portable radio device</title><description>A current-controlled oscillator (1) produces a sawtooth wave, oscillating between upper (V H) and lower (V L) voltage limits. The oscillator output (201) is connected to a frequency comparator circuit (2) which receives a reference frequency (202). The output of the frequency comparator passes to a resistor (4) via a multi-bit channel (231/241). The value of the resistor may be adjusted by a bit word (241). The resistor is connected (31) to a temperature comparator (5). This in turn is connected (32) to the current-controlled oscillator.
Eine Vorrichtung zur Frequenzstabilisierung eines stromgesteuerten Oszillatorschaltkreises (1) enthält eine Vergleichseinheit (2) zum Vergleichen der Oszillatorfrequenz (201) mit einer Referenzfrequenz (202). Anhand des Vergleichs wird ein Widerstandsmittel (4) eingestellt, durch welches die Steuerstromstärke (31,32) des Oszillatorschaltkreises und damit seine Frequenz gesteuert wird.</description><subject>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES</subject><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>ELECTRICITY</subject><subject>PULSE TECHNIQUE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2005</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNzDEKwkAQheE0FqLeYS5gEZIcQCTB0sI-jJOJDA47cXajWHh3FxFrq8eDj39ZvDrn28yBnhATnkUlYhILYCMg0OzOIQFZSG6qPIBFElVM5jDH_DFmp_aA8RciNbrChQP7x0nIZDLPfWVwHMRg4LsQr4vFiBp5891VAV172h-2PFnPcULKkdS3x7Ipm7qudmX1B3kD_lNH-g</recordid><startdate>20050316</startdate><enddate>20050316</enddate><creator>RIBAS, RAYMOND</creator><creator>ARRIORDAZ, ALEXANDRE</creator><creator>LABARRE, ERIC</creator><creator>BONNARDOT, ANDRE</creator><scope>EVB</scope></search><sort><creationdate>20050316</creationdate><title>Frequency stabilisation of a current controlled oscillator used as a low frequency clock generator in a portable radio device</title><author>RIBAS, RAYMOND ; ARRIORDAZ, ALEXANDRE ; LABARRE, ERIC ; BONNARDOT, ANDRE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP1515443A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2005</creationdate><topic>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES</topic><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>ELECTRICITY</topic><topic>PULSE TECHNIQUE</topic><toplevel>online_resources</toplevel><creatorcontrib>RIBAS, RAYMOND</creatorcontrib><creatorcontrib>ARRIORDAZ, ALEXANDRE</creatorcontrib><creatorcontrib>LABARRE, ERIC</creatorcontrib><creatorcontrib>BONNARDOT, ANDRE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>RIBAS, RAYMOND</au><au>ARRIORDAZ, ALEXANDRE</au><au>LABARRE, ERIC</au><au>BONNARDOT, ANDRE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Frequency stabilisation of a current controlled oscillator used as a low frequency clock generator in a portable radio device</title><date>2005-03-16</date><risdate>2005</risdate><abstract>A current-controlled oscillator (1) produces a sawtooth wave, oscillating between upper (V H) and lower (V L) voltage limits. The oscillator output (201) is connected to a frequency comparator circuit (2) which receives a reference frequency (202). The output of the frequency comparator passes to a resistor (4) via a multi-bit channel (231/241). The value of the resistor may be adjusted by a bit word (241). The resistor is connected (31) to a temperature comparator (5). This in turn is connected (32) to the current-controlled oscillator.
Eine Vorrichtung zur Frequenzstabilisierung eines stromgesteuerten Oszillatorschaltkreises (1) enthält eine Vergleichseinheit (2) zum Vergleichen der Oszillatorfrequenz (201) mit einer Referenzfrequenz (202). Anhand des Vergleichs wird ein Widerstandsmittel (4) eingestellt, durch welches die Steuerstromstärke (31,32) des Oszillatorschaltkreises und damit seine Frequenz gesteuert wird.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES BASIC ELECTRONIC CIRCUITRY ELECTRICITY PULSE TECHNIQUE |
| title | Frequency stabilisation of a current controlled oscillator used as a low frequency clock generator in a portable radio device |
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