|Title of Invention||
A DEVICE FOR ENTERING VALUES FOR PROCESSING OF AUDIO SIGNALS IN A SIGNAL PROCESSOR WITH A SCREEN
|Abstract||A DEVICE FOR ENTERING VALUES FOR PROCESSING OF AUDIO SIGNALS IN A SIGNAL PROCESSOR WITH A SCREEN The invention relates to a device for entering values for processing of audio signals in a signal processor a with a screen a for displaying the values, with at least two elements a for manually entering the values being provided in front of the screen, with a carrier for elements for manual entry, which is positioned in front of the screen in the viewing direction and the elements are connected through connections in front of the screen to a computer, that acquires the position of the elements for manual entry using data and which displays a feedback concerning the adjusted values in at least one field on the screen wherein the computer is connected to the signal processor for the processing of audio signals such that the computer can transmit control commands to the signal processor for processing the audio signals according to the settings of the manual entry elements.|
|Full Text||The invention relates to a device for entering values with a screen for displaying values and with at least one element for manual entry of the values provided in front of the screen.
Devices for the input of values are, e.g., rotating knobs and sliding levers that are connected to a dial from which the adjusted value can be read. Here the feedback about the adjusted value is quickly recognizable and easy to survey. Such systems are well introduced and require little space. Unfortunately, however, they cannot be configured, i.e., they cannot easily and quickly be reassigned to another task. Nor can they be operated by remote control. This disadvantage can be avoided by connecting a motor which moves the rotating knob or sliding lever. Such devices are known, but are expensive and large.
In a further developmental stage, the device for entering can be separated from the display so that the rotating knob or the sliding lever and the display screen, which can also be embodied as a monitor, are locally separated. Such a device can be configured and controlled remotely. However, the operation is less advantageous since, if several such devices are provided in a tight area, the coordination between the entering element and the display element must be known or practiced. Frequently, the elements for the entering of values are locally separated so far from the display of the values that a correlation between the element and the display is not always ensured. Frequently, so many entry elements are provided that confusion is inevitable. For such types of devices, audio mixers are typical for sound signals, control panels for power plants or chemical arrangements, as well as operating surfaces for devices for medicinal technology, etc.
Another known embodiment for such devices with a screen is known from the technology of electronic computers, so-called PC's. Here, an arrow can be directed onto a field on the screen by means of a so-called mouse where, e.g., a value can be selected from a given selection of values. Or, originating from a given value, the next given value can be selected by an impulse from the mouse. Such an embodiment can be configured and controlled remotely, but it is comparatively slow in its operation. The lack of a directly acting entering knob leads to an awkward operation. The simultaneous operation of several entering devices is impossible.
Furthermore, devices with screens are known in which the display and value entering occur directly via the screen, i.e., operate without a mouse. On such screens, the program separates fields, which, e.g., are to be touched by the finger in order to select one value among several values. Such systems are known by the term "touch screen." They are easy to arrange and configure, and are quicker to operate than a mouse. However, each entry field on the screen requires a lot of space. The operation is perceived as uncomfortable when the operating finger of the hand has to perform a continuous, pushing motion, directed away from the body.
From US 5,572,239, a device is known with control elements, e.g., rotating or sliding knobs being provided in front of a flat screen, which are connected to a transformer via a connecting element, such as a shaft, e.g., which transforms a motion or position of the control element into an electric signal. The transformer is mounted onto a carrier so that ultimately the control elements are positioned on this carrier as well. The carder is positioned behind the fiat screen, viewed in the viewing direction, and the connection to the control elements occurs via openings in the flat screen.
Therefore, in this known device, control elements are positioned in front of the screen and transformers behind the screen that convert the settings of the control elements. This is always contingent upon the connection being made via the screen, i.e., no monitor containing a cathode ray tube can be used. Another disadvantage can be seen in that, by the utilization of control elements and separate transformers, an
overall large amount of space is necessary, and the construction of such devices is expensive, in particular the application in an audio mixer.
Therefore, it is the object of the invention, on the one hand, to create a device of the above-mentioned type which allows a secure, i.e., reliable and confusion- free, but also quick feedback about values, which can be entered in an ergonomically advantageous manner by means of a manual entry element and, on the other hand, lead to a constructive design that requires little space and can easily be constructed.
For this purpose, a carrier for the elements for manual entering is positioned in front of the screen, as seen in the viewing direction, in the device according to the invention. Insofar as the carrier covers the entire screen, it is provided with at least one transparent region correlated to the element for the display of values on the screen. The elements are connected by way of connections in front of the screen to the computer which enters the setting of the elements for the manual entering of data and, in at least one region of the screen, a feedback of the adjusted values is displayed. Preferably, an element for mounting electronic components is correlated to the screen and the carrier. The element for mounting electronic components is preferably positioned between the carrier and the screen and, depending on the configuration, is provided with transparent regions at least whenever it covers the entire screen. It can be positioned directly at the carrier as well (e.g., applied as a foil) or be integrated therein. For example, rotating knobs, sliding levers, so-called joy sticks, etc., i.e., sensors that are adjustable linearly or in two dimensions or directions can be used as entry elements. Such entry elements produce either a value according to their present setting or produce a signal which corresponds to a performed movement and produce increments of processing values, for instance.
The advantages achieved by the invention can be seen in particular in the ability to provide a clear and secure feedback to the operator on recently adjusted values. The frequently present spacial and therefore visual distance as well between
the position in which the display occurs on a screen and the position in which a value entering occurs is reduced such that both elements are moved into the same view for display and operation. Thus, depending on the configuration, several displays and several entry elements can be set into the same view so that, e.g., values can be changed simultaneously with both hands and immediately the valid values can be controlled for both entries simultaneously. Additionally, the device according to the invention allows the entering of values in quick sequences and is particularly "handy" or advantageous for operating with hands. When used in audio mixers for sound technology, it adapts to the habits of the sound masters to a large extent and thus supports their work in a positive manner. Due to the control elements being directly connected to the computer via cables and the wires being mounted directly on the screen, a particularly simple construction results demanding little space as well.
In the following, the invention is explained using an exemplary embodiment and figures. They show:
Fig. 1 a representation of a device according to prior art
Fig. 2 a section of a part of the device
Figs.3 and 4 a section each through another embodiment of a part of the device
Fig. 5 a view of the device
Fig. 6 a detailed view of the device and
Fig. 7 a schematic block of the construction of the device with a computer.
Fig. 1 shows a known embodiment of a device comprising a screen 1 and several fields 2, 3 etc. in which a value is displayed graphically, e.g., in the form of numbers. These two fields 2, 3 are correlated to rotating knobs 4, 5, e.g., by way of which values can be entered into the device. The displayed values in the fields 2, 3 can be modified by rotating the rotating knobs 4, 5. For this purpose, however, it must be known that the fields 2, 3 correspond to the rotating knobs 4, 5 and not to the rotating
knobs 6, 7 which could be conceivable as well. In reality, the distance between the fields 2, 3 and the rotating knobs 4, 5, 6, 7, as well as the number of the rotating knobs present can be much larger than shown here, which increases the insecurity during operation.
Fig. 2 shows a section through a part of the device according to the invention. Here, a part of the screen 10, a part of the element 11 for mounting electronic components, and a part of a carrier 12 for elements for entering values are discernible. Here, the element 11 is typically embodied as a printed circuit board on which strip conductors are mounted, here, in particular, an optically operating sensor 13. In this example, the sensor 13 cooperates with a beh 14 which rests on rolls 15, 16 which are positioned in the carrier 12 via the axes 17 and 18. The belt 14 comprises at least one marking initiating an electrical impulse when it is positioned opposite to the sensor 13. In order to enter values, the belt 14 can be moved on its upper side 19, using a finger, for instance. Here, a linear adjustable activator is used. The activator 12 is constructed of a transparent medium such as, for example, glass, plexiglass, mineral glass, etc. and the element 11, cut out in certain regions next to the belt, is clear or not present. The carrier 12 can, e.g., be mounted on a cover sheet for the screen or on a common housing part. An incremental activator is conceivable for the sensor 13, for instance.
In order to enter values, the belt 14 is driven, on its upper side 19 by a finger, for example, and is shifted into a new position with markings on the belt 14 causing impulses in the sensor 13 that are processed into values in a processing unit in a manner that is known per se and therefore not described in detail here. These values are displayed in a region or field by the screen 10, which is next to the belt 14.
Fig. 3 shows another embodiment of the device having a rotating knob 20 as the entry element. Here, in contrast to Fig. 2, another (optical) element, a so-called touch screen, is provided as the screen 22. The rotating knob 20 is positioned in a pivotable manner on the carrier 21 which is positioned in front of the screen 22 and of
which only a part is discernible. Between the screen 22 and the carrier 21, an element 23 is provided for mounting electronic components, such as strip conductors, and mounted on one of them. Here, a sensor 24 is mounted via contacts 25, 26 as well. Thus, the carrier 21 is provided with an recess 27. Additional recesses, not shown here, clear the screen. On the carrier 21, a bearing 28 for the rotating knob 20 is mounted via at least one bolted connection 29, as well. On the rotating knob 20, a disc provided with a code is mounted which is in visual contact to an optically operating sensor 24. The construction elements of the company Hewlett-Packard, Type HEDR 8000, for example, are suitable as the sensor 24,
It is also conceivable to position the sensor and the wires leading to it directly on the surface of the carrier and covered by the rotating knob.
For the purpose of entering values, the rotating knob 20 is rotated by hand with the disc 30 following and causing an impulse in the optical sensor 24, which processes the value unit into values in a manner that is known per se and thus is not described in detail here. These values are displayed by the screen 22 in the region or field that is next to the rotating knob 20.
Fig. 4 shows another possible embodiment with the screen 32, here a touch¬screen, being mounted with its side wall 31 immediately next to the carrier 33.
According to the invention, sensors can also be used that do not operate optically but use other physical effects such as magnetism, ultrasound, etc.
Fig. 5 shows a view of a device according to the invention viewed in the direction towards a screen 34 with regions 35', 36', 37', etc. for displaying adjusted values and rotating knobs 35, 36, 37 etc. being elements for entering values which are assigned to a carrier 42. In addition to the mentioned entry elements, other entry elements, known per se, 38, 39 of a different type can be provided on the same screen, operating with the "touch screen" principle or being activated by means of a mouse. In general, the carrier 42 can be embodied transparently so that the screen 34, positioned therebehind, is visible in all parts not covered by the rotating knobs 35, 36, 37.
However, additional regions 40, 41 of the carrier 42 may be covered by strip conductors, e.g., which are positioned above or below the carrier 42 or are provided as foils or are embodied as thin or thick layers. In these additional regions 40; 41 that may cover the screen in a web-like fashion, cormecting all rotating knobs, the screen 34 is covered and therefore not visible.
The device according to the invention is particularly advantageous in so-called LCD screens. They are advantageously provided with an even surface and reflect regions always in the very same size, once their regions are defined by a program. For instance, a dial is always displayed in the same size and at the same position. LED screens are very easily integrated in a horizontal position and form a part of an audio mixer for sound signals, for instance.
Fig. 6 shows an example of data that may occur in an audio mixer in the regions 35', 36, or 37'. Here, these data are values for an audio-channel for processing signals, for example. 43 identifies a graphic value display with regional specifications 44 and 45. A display concerning a control mode is provided in 46, indicating whether the control occurs automatically or manually. The absolute value of a parameter is indicated in 47 and the measuring unit used in 48. In other places, the name of the parameter set is named in 49, the name of the parameter in 50, and another supplementary display in 51. Additionally, the background color 52 may indicate a parameter identification, a level of alarm, etc.
Fig. 7 shows a block wiring diagram of the device according to the invention, here, the conditions for application in an audio mixer are taken into close consideration, by way of example. An operating surface 53 should be provided with a variety of adjustment elements and display elements such as dials, lamps, etc. as customary in such audio mixers. This operating surface consists of a carrier 54 for operating elements 55 which serve the configuration of the audio mixer, an operating element 56 which serves to influence parameters important for the processing of audio signals, and one or more screens 57 serving to display values, dials, functions, etc.
The graphic computer is connected to the screen as well. A computer 62 is connected to the operating surface 53 via one data bus 59, 60, and 61 each. Here, the data bus 59 transmits data or commands relating to the configuration of the audio mixer or its changes from the operating elements 55 to the computer 62. The data bus 60 provides the computer 62 with new values from the operating elements 55 concerning the parameters for processing the audio signals or the algorithms used. The data bus 61 transmits data relating to the present state of the audio mixer and the audio signals from the computer 62 to the graphic computer 58 and, thus, to the screen 57. The computer 62 is also connected to a signal processor 64 via a data bus 63 and a bus 71, which processor modifies, mixes, etc. the primary audio signals. Thus, it is provided with several entrances 65 and exits 66 for audio signals. The signal processor 64 comprises the primary core of an audio mixer, e.g., operating digitally and thus known per se and not shown here. An algorithm library 67 is assigned to the signal processor
64, having saved all algorithms used in the processing of the signals from the entries
65. This library is connected to the signal processor 64 via a bus 69 and to the
computer 62 via a bus 68.
In an audio mixer of a known type, the operating surface 53 is connected directly to the process computer 64 via suitable means so that the operating elements 55, 56 can directly influence the processing of the signals for the exits 66. In order to create additional possibilities according to the invention for operating such an audio mixer, a computer 62 is connected between the operating surface 53 and the process computer 64 which protocols the state, i.e., all settings of the audio mixer and the signals pertaining thereto. When the configuration of the switch board is changed by the operating elements 55, it occurs by means of corresponding data using the data bus 59 to cause the computer 62, on the one hand, to select new algorithms via the bus 68 from the algorithm library 67 and to put them out to the signal processor 64 and, on the other hand, to direct the graphic computer 58 via the data bus 61 to adjust the
displays, dials etc. on the screen 57 to the new configuration. The term configuration defines the entire arrangement provided for the processing of the audio signals. It can
be represented in a block wiring diagram, for instance, which lists all processes, such as increases, additions of signals, filters, lever changes, etc. Such a block wiring diagram, being precisely equivalent to a configuration, can be modified by changes of the configuration so that a different block wiring diagram is valid for the processing, etc. If the operating elements 56 are activated, however, the configuration (the block wiring diagram) remains unchanged and only the values of the parameters in the selected parameters are changed, transmitted by way of the bus 71 to the signal processor 64 and are displayed on the screen 57 via the graphic computer 58 as well. This way, such values can be modified as depicted, e.g., in Fig. 6. Assuming rotating knob 70 serves to provide a filter with a frequency limit, this limit is modified by rotating the rotating knob 70 and its values are displayed in 47. Additionally, it is discernible which chaimel was effected by this modification, etc.
Therefore, the computer 62 serves to acquire the state of signal paths, lever positions, filters, the dynamic of modifying processors, and the size of signals, the position and the change of the position of entering elements, etc. and to display them on the screen 57 in a suitable fashion. Additionally, it gives control commands to the signal processor 64 for processing audio and video signals. The user is also guided through this permanently updated display by making it discernible which modifications in different levels were caused by his intervention into the existing settings. For example, a modification of the frequency limit of a filter component causes not only the display of the new frequency limit but additionally the updated display of other values dependent on it, such as the lever, etc.
The operating elements 55 represent means for defining the signal flux in the audio channels by selecting the algorithms. In the computer 62, stored program parts define means for determining the assignment of operating elements, for instance, in the meaning that a line or column of rotating knobs on the audio mixer serves to adjust
equal parameters, with other parameters being influenced by elements of other lines or columns. This can also mean that singular operation elements can be blocked in a configuration and cannot cause any effect or that several parameters can be modified by a single operation element, e.g., by means of a serial approach. It can simply mean that the language of the labeling can be adjusted at the 49th position etc. or that in some sections of the display the color can be modified rhythmically or can be changed.
1. A device for entering values for processing of audio signals in a signal processor (64) with a screen (34, 57) for displaying the values, with at least two elements (35, 36, 37, 55, 56) for manually entering the values being provided in front of the screen, with a carrier (42) for elements (35, 36, 37, 55, 56) for manual entry, which is positioned in front of the screen in the viewing direction and the elements are connected through connections in front of the screen to a computer (62), that acquires the position of the elements for manual entry using data and which displays a feedback concerning the adjusted values in at least one field (35', 36', 37') on the screen wherein the computer (62) is connected to the signal processor (64) for the processing of audio signals such that the computer can transmit control commands to the signal processor for processing the audio signals according to the settings of the manual entry elements.
2. The device as claimed in claim 1, wherein the carrier (42) is provided with transparent regions (35', 36', 37') assigned to the elements (35, 36, 37).
3. The device as claimed in claim 1, wherein the computer is provided for determining the configuration for the processing of the audio signals in the signal processor.
4. The device as claimed in claim 1, wherein an element (11) for mounting electronic components is assigned to the screen and the carrier, positioned between the carrier and the screen for mounting electronic components.
5. The device as claimed in claim 3, wherein the element for mounting electronic components is positioned on the carrier.
6. The device as claimed in claim 1, wherein shaft encoders (23) are provided as
7. The device as claimed in claim 1, wherein linearly adjustable transmitters (14)
are provided as an entry element.
8. The device as claimed in claim 1, wherein the computer (62) is connected to
operating elements (55) which determine the configuration of the device.
9. The device as claimed in claim 1, wherein the screen is provided with
additional entry elements (38, 39) of different types.
10. The device as claimed in claim 1, wherein the computer (62) is provided for
acquiring the state of elements such as signal paths, lever positions, filters, the
dynamic changing processors, the size of signals, the position and the variation of the
position of entry elements, etc. through signals in the regions (35', 36', 37') on the
screen and displays them on the screen (57) in an appropriate fashion.
|Indian Patent Application Number||IN/PCT/2001/678/CHE|
|PG Journal Number||05/2007|
|Date of Filing||16-May-2001|
|Name of Patentee||STUDER PROFESSIONAL AUDIO GMBH|
|Applicant Address||ALTHARDSTRASSE 30, CH 8105 REGENDORF|
|PCT International Classification Number||H01H9/18|
|PCT International Application Number||PCT/CH1999/000498|
|PCT International Filing date||1999-10-21|