1. An enhanced reconditioning equalizer filter for use with non-constant envelope signals to enhance the performance of any communication transmitter, in any wireless cellular, Personal Communication System (PCS), wireless Local Area Network and Wide Area Network (LANWAN), Video and Audio Wireless Broadcasting, line of sight microwave, military, optical, and satellite communication systems and any other non-wireless applications, the enhanced reconditioning equalizer filter comprising:
a first feedforward loop to adjust an injected in band baseband signal into a main baseband signal;
a second feedforward loop to adjust an amount of out of band baseband signal injected into the main baseband signal;
a peak reduction filter that performs peak reduction filtering to produce a peak reduced main baseband signal;
a gain function that adjusts the gain of the main baseband signal;
a controller that uses the main baseband signal, the output of enhanced reconditioning equalizer filter, and external information to provide control signals to various delay and gain functions as well as the peak reduction filter and a correlation function;
a first feedforward loop comprising:
a first gain element that adjusts the gain of the main baseband signal;
a first delay element that adjusts the delay of the main baseband signal;
a first subtractor that subtracts the delay and gain adjusted main baseband signal and the peak reduced main baseband signal;
a correlation function that correlates the main baseband signal and the result of the subtraction of the peak reduced main baseband signal and the delay and gain adjusted main baseband signal to calculate the amount of the delay and gain adjustment for the main baseband signal;
a digital finite impulse response (FIR) low pass filter with configurable coefficients that filters the result of the subtraction of the delay and gain adjusted main baseband signal and the peak reduced main baseband signal to remove or adjust the out of band baseband signal;
a second gain element to adjust the low pass filtered subtraction of the peak reduced main baseband signal and the delay and gain adjusted main baseband signal;
a first summer that adds the delay and gain adjusted main baseband signal and the gain adjusted low pass filtered subtraction of the peak reduced main baseband signal;
a second feedforward loop comprising:
a third gain element that adjusts the gain of the subtraction of the delay and gain adjusted main baseband signal and the peak reduced main baseband signal in the second feedforward loop;
a second delay element that adjusts the delay of the subtraction of the delay and gain adjusted main baseband signal and the peak reduced main baseband signal in the second feedforward loop;
a second subtractor that subtracts the results of the delay and gain adjusted subtraction of the delay and gain adjusted main baseband signal and the peak reduced main baseband signal and the low pass filtered subtraction of the delay and gain adjusted main baseband signal and the peak reduced main baseband signal;
a fourth gain element that adjusts the gain of the subtraction of the results of the delay and gain adjusted subtraction of the delay and gain adjusted main baseband signal and the peak reduced main baseband signal and the low pass filtered subtraction of the delay and gain adjusted main baseband signal and the peak reduced main baseband signal;
a second summer that adds the reconditioned and smoothened baseband signal result from first feedforward loop with the gain adjusted subtraction of the results of the gain and delay adjusted subtraction of the delay and gain adjusted main baseband signal and the peak reduced main baseband signal and the low pass filtered subtraction of the delay and gain adjusted main baseband signal and peak reduced main baseband signal to further condition and smoothen the main baseband signal.
2. The enhanced reconditioning equalizer filter according to claim 1, wherein the peak reduction filter is adjustable.
3. The enhanced reconditioning equalizer filter according to claim 1, wherein the reconditioning equalizer filter can be implemented in programmable logic, Field Programmable Gate Array (FPGA), Gate Array, Application Specific Integrated Circuit (ASIC), and DSP processor.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A screen operation system obtaining operation information associated with an operation performed by a user with a pointing object relative to a screen of an image display apparatus controlled by an information processing apparatus and causing the information processing apparatus to execute processing associated with the operation information, the screen operation system comprising:
a mobile information apparatus comprising:
a camera capturing an image of the screen of the image display apparatus;
a display displaying the image captured by the camera; and
a communicator communicating information with the information processing apparatus, wherein
the operation information is obtained based on captured image information obtained from the image captured by the camera such that the pointing object is displayed at a predetermined position on the screen of the image display apparatus.
2. The screen operation system according to claim 1, wherein at least one of the mobile information apparatus and the information processing apparatus comprises:
a first operation position obtainer obtaining a relative position of the pointing object to a capture area captured by the camera within the screen of the image display apparatus.
3. The screen operation system according to claim 2, wherein at least one of the mobile information apparatus and the information processing apparatus comprises:
a capture position obtainer obtaining an absolute position of the capture area in the entire screen of the image display apparatus.
4. The screen operation system according to claim 3, wherein at least one of the mobile information apparatus and the information processing apparatus comprises:
a second operation position obtainer obtaining an absolute position of the pointing object in the entire screen of the image display device based on the information obtained by the first operation position obtainer and the capture position obtainer.
5. The screen operation system according to claim 1, wherein at least one of the mobile information apparatus and the information processing apparatus comprises:
an operation mode determinator determining an operation mode associated with a movement of the pointing object.
6. The screen operation system according to claim 1, wherein at least one of the mobile information apparatus and the information processing apparatus comprises:
an image corrector correcting distortion of the captured image caused by oblique capture of the screen of the image display apparatus by the camera.
7. A screen operation system obtaining operation information associated with an operation performed by a user with a pointing object relative to a screen of an image display apparatus controlled by an information processing apparatus and causing the information processing apparatus to execute processing associated with the operation information, the screen operation system comprising:
a mobile information apparatus comprising:
a camera capturing an image of the screen of the image display apparatus;
a touch screen display displaying the image captured by the camera and detecting a touch operation by the pointing object on the screen; and
a communicator communicating information with the information processing apparatus, wherein
the operation information is obtained based on captured image information obtained from the image of the screen of the image display apparatus captured by the camera and operation position information obtained from the touch operation performed on the touch screen display on which the captured image is displayed.
8. The screen operation system according to claim 7, wherein at least one of the mobile information apparatus and the information processing apparatus comprises:
a first operation position obtainer obtaining a relative position of the pointing object to a capture area captured by the camera within the screen of the image display apparatus.
9. The screen operation system according to claim 8, wherein at least one of the mobile information apparatus and the information processing apparatus comprises:
a capture position obtainer obtaining an absolute position of the capture area in the entire screen of the image display apparatus.
10. The screen operation system according to claim 9, wherein at least one of the mobile information apparatus and the information processing apparatus comprises:
a second operation position obtainer obtaining an absolute position of the pointing object in the entire screen of the image display device based on the information obtained by the first operation position obtainer and the capture position obtainer.
11. The screen operation system according to claim 7, wherein at least one of the mobile information apparatus and the information processing apparatus comprises:
an operation mode determinator determining an operation mode associated with a movement of the pointing object.
12. The screen operation system according to claim 7, wherein at least one of the mobile information apparatus and the information processing apparatus comprises:
an image corrector correcting distortion of the captured image caused by oblique capture of the screen of the image display apparatus by the camera.
13. The screen operation system according to claim 1, wherein the information processing apparatus and the mobile information apparatus are connected to a network to receivetransmit information via the network, the communicator comprising a relay apparatus operatively coupled to the network and to the mobile information apparatus.
14. The screen operation system according to claim 7, wherein the information processing apparatus and the mobile information apparatus are connected to a network to receivetransmit information via the network, the communicator comprising a relay apparatus operatively coupled to the network and to the mobile information apparatus.
15. The screen operation system according to claim 1, wherein the system is configured such that when a pointing object is moved to a predetermined position where an operation target is located on an image displayed on the display of the camera, the operation target can be operated.
16. The screen operation system according to claim 1, wherein the camera of the mobile information apparatus is configured to capture an area together with the pointing object, the area comprising at least a portion of the image displayed on the screen of the image display apparatus and being within a field angle of the camera.
17. The screen operation system according to claim 1, wherein the mobile information apparatus is further comprising a moving body tracker that detects relative movement between the captured image and the camera, and a pointing object detector that determines, whether movement of a portion of the captured image is different than movement of the entire captured image and determines, based on shape recognition, whether the portion of the captured image is the pointing object.
18. The screen operation system according to claim 5, wherein the operation mode includes at least tapping, flicking and pinch inpinch out.
19. The screen operation system according to claim 1, wherein the pointing object comprises at least one of a pen, a pointer, a hand, a finger, and a nail.
20. The screen operation system according to claim 1, wherein a plurality of mobile information apparatuses are usable together with an image display apparatus controlled by a single information processing apparatus to cause the information processing apparatus to execute processing associated with the operation information.
21. The screen operation system according to claim 15, wherein the operation target comprises at least one of a selection menu and an icon.