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2020-09-23

Welcome to my Homepage!

On this homepage you will find information about my Soft- and Hardwareprojects for several computer systems. The navigation bars on the left and top will bring you directly to the different topics. The language selection between German and English is done automatically if your browser is properly configured; should you prefer another language, please click on the desired flag on the top-right.



Please also sign my Guestbook. Accolade and criticism is highly welcome. I will try to improve the content of this homepage according your suggestions. I would be also happy to get feedback regarding my projects - what do you like/dislike and what do you want to see in the future?



But now I wish you much fun by searching about these pages!



Stefan Robl



Homepage Update History

"CW 1 to 53" V1.0.2 released

Here are the changes of this version:

Recompiled using the latest version of Xcode

The data displayed in the user interface is now updated in more occasions

Added a version information in the main menu 2020-04-22 "CW 1 to 53" V1.0.1 released

Here are the changes of this version:

The calendar week list is now updated if the week has changed since the last start of the app

Added support for the calendar week systems ISO8601 (Europe) and US (changeable in the app settings)

Added information about the number of calendar weeks of the current year to the weekly list ("#CW: xx") 2020-02-19 "CW 1 to 53" V1.0.0 released

At least in Europe, planning on the basis of calendar weeks is an indispensable tool in professional life.

As I am an avid user of Apple Watch and would like to have the current date together with the current calendar week always displayed on the watch face, I looked around for appropriate apps. Apps already exist, but none of them met my expectations in terms of configurability, functionality and ease of use with a visually appealing user interface.

For this reason I developed my own app for the Apple Watch, which I publish hereby. 2020-02-10 Oscilyzer V1.0.0 released

Since I have been interested in digital measurement technology for a very long time, I developed an app many years ago, which is a combination of oscilloscope, spread spectrum analyzer and AM/FM synthesizer. This app has been continuously improved for a long time, adapted to new technologies (e.g. Apple's graphic accelerator Metal) and always used only for me personally.

But since the state of the app can be described as mature and surely other people can use it for their own experiments and measurements, I decided to publish it now... :-) 2020-02-09 Compatibility information about ExifRenamer and macOS "Catalina"

Due to the fact that I get repeated requests about the compatibility of ExifRenamer to macOS "Catalina":

Since version 2.2.0, ExifRenamer is a 64bit application. During 2018/2019, I've spent quite some time to clean up the source code of ExifRenamer to being able to provide a modern implementation of this application.

As a result, I've successfully tested ExifRenamer with the beta and release versions of macOS Catalina! :-) 2019-10-21 ExifRenamer V2.3.3 released

Here are the changes of this version:

Added support for file formats using the QuickTime movie container (MOV, MPEG4, MP4, M4V, ...).

Fixed a problem which caused a crash when ExifRenamer tried to append evaluated file type suffix information.

Fixed a problem with retrieving a correct date/time from RIFF/AVI file formats.

Added support for the ancient JPEG "Picture Info" tag which was used by certain old cameras.

Added the possibility to filter out all Exif dates which appear before a definable date. This allows to deal with unset camera clocks or broken time stamp information.

ExifRenamer now allows to use the file modification date as date/time source, as well (selectable within naming style preferences).

Changed the way how ExifRenamer handles hidden files and folders: Previously, only files with "." as prefix were ignored. Now, all files and folders (!) which are invisible within the Finder are ignored. This option can be disabled.

Added the possibility to add a suffix to the counter. This makes it possible to recreate the Finder's typical "Name (2).jpg" scheme in case of multiple files with identical names.

Fixed the behaviour of the subsecond options %b and %B to match the description. 2019-02-09 ExifRenamer V2.3.2 released

Here are the changes of this version:

Fixed a bug which caused ExifRenamer to "forget" several preferences settings.

Fixed some typos in the German translation.

Improved the version check mechanism to correctly show update information when using beta versions of ExifRenamer, as well. 2018-12-22 ExifRenamer V2.3.1 released

Here are the changes of this version:

ExifRenamer is now able to create hierarchical folder structures when moving the pictures. For example, you can now generate folder structures like YEAR/MONTH/DAY/picturename.

Fixed multiple typos within application and documentation texts.

Reduced the size of the enclosed introduction/documentation PDFs.

Added support for the "Hardened Runtime" on macOS 10.14.

ExifRenamer is now a so called "Notarized App" which means it is checked through Apple's security servers. This feature was introduced by Apple with macOS Mojave.

Added twitter links to the about window and the documentation.

Added the possibility to extract and use GPS location information as placeholder.

Fixed the missing realtime update of the name preview when typing within the prefix/suffix text fields of the confirm file/folder windows. 2018-12-09 ExifRenamer V2.3.0 released

Here are the changes of this version:

Integrated the new application icon which was designed by Benjamin. Thank you so much Benjamin for your incredible work and effort you've put into this topic! The new appearance of ExifRenamer was worth an increase in the middle digit of the version number... ;-)

The new appearance of ExifRenamer was worth an increase in the middle digit of the version number... ;-) Fixed a problem within preferences, where the substring type popup button was not updated with the saved setting.

Added a dedicated "Drag&Drop Window" for those users who do not want to use ExifRenamer's application icon as drag&drop-target.

The renaming confirmation window is now shown directly below the renaming progress window.

Fixed a bug which caused ExifRenamer to assume that no change in the file name means "file already exists".

The file/folder status in the confirm info window is now updated during typing.

Added support for adding subsecond information to the format string.

Fixed a problem where ExifRenamer used the wrong prefix/suffix setting when a custom prefix was set within the "confirm each file" dialog but the renaming was performed without "Confirm each file" option active.

Added the option to evaluate the file type suffix from the file contents.

Added the option to skip renaming if a file date was not retrievable, at all.

Added support for macOS Mojave's "dark mode".

Limited the automatic update check to a maximum of once every 24 hours.

Applied UI improvements for Retina displays. 2018-10-07 Added a new JavaScript section

This new section currently contains ports of some of my old Java applets which makes it possible to run them in every web browser. 2018-06-29

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