Abstract: The present invention discloses improved methods and systems for identifying transitions between programming content and commercial ad content in pre-recorded media files, live digital broadcasts, or streaming media—content streams—that have no ad break markers encoded therein. The process employs iterative, machine learning context models to improve ad break identification accuracy the more it is used. The present invention enables the dynamic replacement of ads already in the content stream with customized ads “on the fly”. The present invention also enables “on the fly” ad skipping in recorded media.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator has a multilayer structure. In the multilayer structure, an upper piezoelectric layer and a lower piezoelectric layer are laminated one on another. A drive electrode is formed at a boundary between the upper piezoelectric layer and the lower piezoelectric layer and is electrically connected to a source for supplying a drive signal. An upper common electrode is formed on the surface of the upper piezoelectric layer. A lower common electrode is formed on the surface of the lower piezoelectric layer. An inertance of a nozzle orifice and an inertance of an ink supply port are set so as to become greater than an inertance of a pressure generating portion.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator has a multilayer structure. In the multilayer structure, an upper piezoelectric layer and a lower piezoelectric layer are laminated one on another. A drive electrode is formed at a boundary between the upper piezoelectric layer and the lower piezoelectric layer and is electrically connected to a source for supplying a drive signal. An upper common electrode is formed on the surface of the upper piezoelectric layer. A lower common electrode is formed on the surface of the lower piezoelectric layer. An inertance of a nozzle orifice and an inertance of an ink supply port are set so as to become greater than an inertance of a pressure generating portion.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator 18 has a multilayer structure. In the multilayer structure, an upper piezoelectric layer 24 and a lower piezoelectric layer 25 are laminated one on another. A drive electrode 23 is formed at a boundary between the upper piezoelectric layer 24 and the lower piezoelectric layer 25 and is electrically connected to a source for supplying a drive signal. An upper common electrode 26 is formed on the surface of the upper piezoelectric layer 24. A lower common electrode 27 is formed on the surface of the lower piezoelectric layer 25. An inertance of a nozzle orifice 10 and an inertance of an ink supply port 5 are set so as to become greater than an inertance of a pressure generating portion 6, 13, 16.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator 18 has a multilayer structure. In the multilayer structure, an upper piezoelectric layer 24 and a lower piezoelectric layer 25 are laminated one on another. A drive electrode 23 is formed at a boundary between the upper piezoelectric layer 24 and the lower piezoelectric layer 25 and is electrically connected to a source for supplying a drive signal. An upper common electrode 26 is formed on the surface of the upper piezoelectric layer 24. A lower common electrode 27 is formed on the surface of the lower piezoelectric layer 25. An inertance of a nozzle orifice 10 and an inertance of an ink supply port 5 are set so as to become greater than an inertance of a pressure generating portion 6, 13, 16.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator 18 has a multilayer structure. In the multilayer structure, an upper piezoelectric layer 24 and a lower piezoelectric layer 25 are laminated one on another. A drive electrode 23 is formed at a boundary between the upper piezoelectric layer 24 and the lower piezoelectric layer 25 and is electrically connected to a source for supplying a drive signal. An upper common electrode 26 is formed on the surface of the upper piezoelectric layer 24. A lower common electrode 27 is formed on the surface of the lower piezoelectric layer 25. An inertance of a nozzle orifice 10 and an inertance of an ink supply port 5 are set so as to become greater than an inertance of a pressure generating portion 6, 13, 16.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator has a multilayer structure. In the multilayer structure, an upper piezoelectric layer and a lower piezoelectric layer are laminated one on another. A drive electrode is formed at a boundary between the upper piezoelectric layer and the lower piezoelectric layer and is electrically connected to a source for supplying a drive signal. An upper common electrode is formed on the surface of the upper piezoelectric layer. A lower common electrode is formed on the surface of the lower piezoelectric layer. An inertance of a nozzle orifice and an inertance of an ink supply port are set so as to become greater than an inertance of a pressure generating portion.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator 18 has a multilayer structure. In the multilayer structure, an upper piezoelectric layer 24 and a lower piezoelectric layer 25 are laminated one on another. A drive electrode 23 is formed at a boundary between the upper piezoelectric layer 24 and the lower piezoelectric layer 25 and is electrically connected to a source for supplying a drive signal. An upper common electrode 26 is formed on the surface of the upper piezoelectric layer 24. A lower common electrode 27 is formed on the surface of the lower piezoelectric layer 25. An inertance of a nozzle orifice 10 and an inertance of an ink supply port 5 are set so as to become greater than an inertance of a pressure generating portion 6, 13, 16.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator has a multilayer structure. In the multilayer structure, an upper piezoelectric layer and a lower piezoelectric layer are laminated one on another. A drive electrode is formed at a boundary between the upper piezoelectric layer and the lower piezoelectric layer and is electrically connected to a source for supplying a drive signal. An upper common electrode is formed on the surface of the upper piezoelectric layer. A lower common electrode is formed on the surface of the lower piezoelectric layer. An inertance of a nozzle orifice and an inertance of an ink supply port are set so as to become greater than an inertance of a pressure generating portion.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator has a multilayer structure. In the multilayer structure, an upper piezoelectric layer and a lower piezoelectric layer are laminated one on another. A drive electrode is formed at a boundary between the upper piezoelectric layer and the lower piezoelectric layer and is electrically connected to a source for supplying a drive signal. An upper common electrode is formed on the surface of the upper piezoelectric layer. A lower common electrode is formed on the surface of the lower piezoelectric layer. An inertance of a nozzle orifice and an inertance of an ink supply port are set so as to become greater than an inertance of a pressure generating portion.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator has a multilayer structure. In the multilayer structure, an upper piezoelectric layer and a lower piezoelectric layer are laminated one on another. A drive electrode is formed at a boundary between the upper piezoelectric layer and the lower piezoelectric layer and is electrically connected to a source for supplying a drive signal. An upper common electrode is formed on the surface of the upper piezoelectric layer. A lower common electrode is formed on the surface of the lower piezoelectric layer. An inertance of a nozzle orifice and an inertance of an ink supply port are set so as to become greater than an inertance of a pressure generating portion.

Abstract: A first common electrode is formed on a vibration plate and to be fixed at a predetermined potential. A first piezoelectric layer is laminated on the first common electrode and having a first thickness. A drive electrode is laminated on the first piezoelectric layer, to which a drive signal is supplied externally. A second piezoelectric layer is laminated on the drive electrode and having a second thickness thicker than the first thickness. A second common electrode is laminated on the second piezoelectric layer and to be fixed at the predetermined potential.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator 18 has a multilayer structure. In the multilayer structure, an upper piezoelectric layer 24 and a lower piezoelectric layer 25 are laminated one on another. A drive electrode 23 is formed at a boundary between the upper piezoelectric layer 24 and the lower piezoelectric layer 25 and is electrically connected to a source for supplying a drive signal. An upper common electrode 26 is formed on the surface of the upper piezoelectric layer 24. A lower common electrode 27 is formed on the surface of the lower piezoelectric layer 25. An inertance of a nozzle orifice 10 and an inertance of an ink supply port 5 are set so as to become greater than an inertance of a pressure generating portion 6, 13, 16.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator 18 has a multilayer structure. In the multilayer structure, an upper piezoelectric layer 24 and a lower piezoelectric layer 25 are laminated one on another. A drive electrode 23 is formed at a boundary between the upper piezoelectric layer 24 and the lower piezoelectric layer 25 and is electrically connected to a source for supplying a drive signal. An upper common electrode 26 is formed on the surface of the upper piezoelectric layer 24. A lower common electrode 27 is formed on the surface of the lower piezoelectric layer 25. An inertance of a nozzle orifice 10 and an inertance of an ink supply port 5 are set so as to become greater than an inertance of a pressure generating portion 6, 13, 16.

Abstract: A liquid ejecting apparatus of the invention includes: a pressure-generating chamber having an inside space whose volume is changeable, into which a liquid is supplied and which is communicated with a nozzle, a resonance frequency of said pressure-generating chamber having a period of Tc; a signal-generating unit that generates a driving signal having: a first signal-element for causing the pressure-generating chamber to expand, a second signal-element for causing the pressure-generating chamber to contract from an expanding state thereof in order to eject a drop of the liquid through the nozzle, and a third signal-element for causing the pressure-generating chamber to expand to an original state before outputting the first signal-element after the drop of the liquid is ejected; and a pressure-generating unit that causes the pressure-generating chamber to expand and contract, based on the driving signal.

Abstract: A first common electrode is formed on a vibration plate and to be fixed at a predetermined potential. A first piezoelectric layer is laminated on the first common electrode and having a first thickness. A drive electrode is laminated on the first piezoelectric layer, to which a drive signal is supplied externally. A second piezoelectric layer is laminated on the drive electrode and having a second thickness thicker than the first thickness. A second common electrode is laminated on the second piezoelectric layer and to be fixed at the predetermined potential.

Abstract: In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator 18 has a multilayer structure. In the multilayer structure, an upper piezoelectric layer 24 and a lower piezoelectric layer 25 are laminated one on another. A drive electrode 23 is formed at a boundary between the upper piezoelectric layer 24 and the lower piezoelectric layer 25 and is electrically connected to a source for supplying a drive signal. An upper common electrode 26 is formed on the surface of the upper piezoelectric layer 24. A lower common electrode 27 is formed on the surface of the lower piezoelectric layer 25. An inertance of a nozzle orifice 10 and an inertance of an ink supply port 5 are set so as to become greater than an inertance of a pressure generating portion 6, 13, 16.

Abstract: A drive signal generator generates a drive signal including a drive pulse supplied to a pressure generating element. The drive pulse including a first expanding element, which drives the pressure generating element so as to expand a pressure chamber, so that a meniscus of liquid in a nozzle orifice is pulled toward the pressure chamber, a first contracting element, which drives the pressure generating element so as to contract the pressure chamber expanded by the first expanding element, so that a center portion of the meniscus is swelled in an ejecting direction of a liquid drop, and a second expanding element, which drives the pressure generating element so as to expand the pressure chamber contracted by the first contracting element, so that a marginal portion of the swelled center portion of the meniscus is pulled toward the pressure chamber. The first expanding element is supplied for a time period which is not greater than a half a natural vibration period of the pressure chamber.

Abstract: A liquid ejecting apparatus of the invention includes: a pressure-generating chamber having an inside space whose volume is changeable, into which a liquid is supplied and which is communicated with a nozzle, a resonance frequency of said pressure-generating chamber having a period of Tc; a signal-generating unit that generates a driving signal having: a first signal-element for causing the pressure-generating chamber to expand, a second signal-element for causing the pressure-generating chamber to contract from an expanding state thereof in order to eject a drop of the liquid through the nozzle, and a third signal-element for causing the pressure-generating chamber to expand to an original state before outputting the first signal-element after the drop of the liquid is ejected; and a pressure-generating unit that causes the pressure-generating chamber to expand and contract, based on the driving signal.

Abstract: The liquid-jetting apparatus has a liquid-jetting head with nozzle openings through which liquid particles are jetted. The liquid-jetting head performs a flushing operation to remove the thickened liquid from the nozzle openings to recover its normal liquid-jetting ability. The flushing operation jets liquid particles having a weight of 10 ng or below successively through the nozzle openings at a jetting speed of 8 m/s or above. The liquid-jetting apparatus is capable of achieving a satisfactory flushing operation to ensure a satisfactory liquid-jetting characteristic by recovering from a thickened state in a liquid in the nozzle openings even if the liquid is un-uniformly thickened in the nozzle openings.