News Column

Patent Issued for Latch Circuit, Flip-Flop Circuit and Frequency Divider

August 20, 2014

By a News Reporter-Staff News Editor at Electronics Newsweekly -- Freescale Semiconductor, Inc. (Austin, TX) has been issued patent number 8797078, according to news reporting originating out of Alexandria, Virginia, by VerticalNews editors.

The patent's inventor is Trotta, Saverio (Munich, DE).

This patent was filed on July 27, 2010 and was published online on August 5, 2014.

From the background information supplied by the inventors, news correspondents obtained the following quote: "Frequency dividers find a broad use in modern electronic technology. They are often used in e.g. in transmitters or receivers but may also find use in the context of clock-driven electronic devices such as e.g. microcontrollers or microchips.

"Frequency dividers are regularly constructed using latch circuits arranged in a way to provide the desired division of frequency. In particular, latch circuits may be combined to flip-flops, which may be utilized in frequency dividers and other devices. In many cases, transistors are used as components of the flip-flop devices. Flip-flop circuits respectively frequency dividers usually have a preferred frequency range of operation and in particular a given resonance frequency or self oscillatory frequency depending on the characteristics of the electronic components. These frequencies may show a drifting behaviour over time due to external or internal issues.

"In WO 2009/115865 A1 there is described a latch module for a frequency divider with a current injector providing asymmetric operation of a sense pair of transistors and a regenerative pair of transistors to change a self oscillatory frequency of the frequency divider."

Supplementing the background information on this patent, VerticalNews reporters also obtained the inventor's summary information for this patent: "The present invention provides a latch circuit, a flip-flop circuit and a frequency divider as described in the accompanying independent claims.

"Specific embodiments of the invention are set forth in the dependent claims.

"These and other aspects of the invention will be apparent from and elucidated with reference to the embodiments described hereinafter."

For the URL and additional information on this patent, see: Trotta, Saverio. Latch Circuit, Flip-Flop Circuit and Frequency Divider. U.S. Patent Number 8797078, filed July 27, 2010, and published online on August 5, 2014. Patent URL:

Keywords for this news article include: Electronics, Freescale Semiconductor Inc..

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Source: Electronics Newsweekly

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