Switching device for telecommunications channel

H - Electricity – 04 – M

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04M 3/30 (2006.01) H03K 17/687 (2006.01) H03K 17/785 (2006.01)

Patent

CA 2183642

A switching device for a channel comprising a pair of lines, which comprises: (1) a voltage detector (8) that produces an output voltage in response to a voltage between the lines above a predetermined level; (2) a switch (9) that can change an impedance in one of the lines in response to an input voltage thereto; characterized in that: (a) the device additionally comprises a first storage device (2) that produces said input voltage, said input voltage being produced when the storage device reaches a charge V2, said storage device being initially at a voltage V1 that is less than V2 and after charging by the output voltage being at a voltage V3 that is greater than V2, said storage device discharging from V3 to V1 in the absence of the output voltage; and (b) the voltage detector (1) comprises a low-pass filter (R1, C1, D3, R2) such that an AC signal on the channel produces an output voltage that charges the first storage device to a charge below V2.

Ce dispositif interrupteur destiné à un canal comportant une paire de lignes, comprend: (1) un détecteur de tension (8) produisant une tension de sortie en réponse à une tension entre les lignes se situant au-dessus d'un niveau prédéterminé; (2) un interrupteur (9) pouvant changer l'impédance dans une des lignes en réponse à une tension d'entrée exercée sur celle-ci; ce dispositif interrupteur étant caractérisé en ce que: (a) il comprend en outre un premier moyen de stockage (2) qui produit la tension d'entrée lorsque ce moyen atteint une charge V¿2? alors que sa tension initiale était une tension V¿1? inférieure à V¿2?, qui, après chargement par la tension de sortie, a une tension V¿3? supérieure à V¿2?, mais qui se décharge de V¿3? à V¿1? en l'absence de tension de sortie; et (b) le détecteur de tension (1) comprend un filtre passe-bas (R1, C1, D3, R2) tel qu'un signal en courant alternatif sur le canal produit une tension de sortie qui charge le premier dispositif de stockage à une tension inférieure à V¿2?.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Switching device for telecommunications channel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switching device for telecommunications channel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switching device for telecommunications channel will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1587928

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.