Search Patents
  • Method and apparatus for supplying a system for processing electrical signals
    Patent number: 4672527
    Abstract: In a circuit supplying a digital system, the frequency at which the switching device therein is controlled is synchronized to be the same as one or several times half the sampling frequency. In this way, the original frequency spectrum can be kept free from interfering signals.
    Type: Grant
    Filed: December 6, 1984
    Date of Patent: June 9, 1987
    Assignee: Willi Studer AG
    Inventors: Roger Lagadec, Robert Muller
  • Method and apparatus for producing and selectively equalizing a temporal relationship between series of digital signals
    Patent number: 4709278
    Abstract: In order to equalize different delays between the digital signals of two or more digital signal sequences, additional signals are added to at least one of the digital signal sequences of digital signals. The additional signals are indicative of the momentary temporal relationship between the digital signals of the different digital signal sequences.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: November 24, 1987
    Assignee: Willi Studer AG
    Inventor: Roger Lagadec
  • Method and apparatus for reproducing digitized signals
    Patent number: 4821298
    Abstract: To compensate for transmission errors of a non-ideal system for transmitting digital signals, first signal deviations are determined and stored, and then there is a direct processing of the input signals into output signals by combining the input signals with the stored signal deviations. The invention includes both method and apparatus and provides a substantial reduction in equipment costs.
    Type: Grant
    Filed: December 19, 1984
    Date of Patent: April 11, 1989
    Assignee: Willi Studer, AG
    Inventors: Roger Lagadec, Julien Piot
  • Method for transmitting an anonymous request from a consumer to a content or service provider through a telecommunication network
    Publication number: 20040098625
    Abstract: A method and associated arrangement allows a content or service provider to establish an anonymous profile of a consumer using at least one request sent by the consumer through a communication network. The request sent by the consumer includes identification data of the consumer. The identification data is substituted in the network with an alias so as to anonymize the request. The identification data is not accessible to the content or service provider and there is a one-to-one and immutable correspondence between the identification data and the alias.
    Type: Application
    Filed: November 10, 2003
    Publication date: May 20, 2004
    Inventors: Roger Lagadec, Didier Durand, Christophe Taddei
  • Method for Transmitting an Anonymous Request from a Consumer to a Content or Service Provider Through a Telecommunication Network
    Publication number: 20130179355
    Abstract: A method and system for use in allowing a content or service provider to establish an anonymous profile of a consumer using at least one request sent by the consumer through a communication network. The request sent by the consumer includes identification data of the consumer. The identification data is substituted in the network with an alias so as to anonymize the request. The identification data is not accessible to the content or service provider and there is a correspondence between the identification data and the alias.
    Type: Application
    Filed: February 26, 2013
    Publication date: July 11, 2013
    Inventors: Roger Lagadec, Didler Durand, Christophe Taddei
  • Method for transmitting an anonymous request from a consumer to a content or service provider through a telecommunication network
    Patent number: 7590547
    Abstract: A method and associated arrangement allows a content or service provider to establish an anonymous profile of a consumer using at least one request sent by the consumer through a communication network. The request sent by the consumer includes identification data of the consumer. The identification data is substituted in the network with an alias so as to anonymize the request. The identification data is not accessible to the content or service provider and there is a one-to-one and immutable correspondence between the identification data and the alias.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: September 15, 2009
    Assignee: Swisscom Mobile AG
    Inventors: Roger Lagadec, Didier Durand, Christophe Taddei
  • Method and system for anonymously transmitting messages by means of a telecommunication network
    Publication number: 20050025300
    Abstract: Method for anonymously transmitting a message by means of a telecommunication network. A first exchange (2) between the sender (1) and the receiver (4) of said message replaces identifying features (MSISDN) of the sender (1) of the message by a first alias identification (CID). The conversion between the said identifying features (MSISNDN) and the first alias identification (CID) is permanent, or at least secure for several weeks. The first alias identification (CID) is replaced by a second alias identification (CMID) at the receiver (4) or in a further exchange (3). The second alias identification (CMID) enables the receiver to identify the transmitter.
    Type: Application
    Filed: April 28, 2004
    Publication date: February 3, 2005
    Inventors: Roger Lagadec, Eric Lauper
  • Method for transmitting an anonymous request from a consumer to a content or service provider through a telecommunication network
    Patent number: 8401867
    Abstract: A method and associated arrangement allows a content or service provider to establish an anonymous profile of a consumer using at least one request sent by the consumer through a communication network. The request sent by the consumer includes identification data of the consumer. The identification data is substituted in the network with an alias so as to anonymize the request. The identification data is not accessible to the content or service provider and there is a one-to-one and immutable correspondence between the identification data and the alias.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: March 19, 2013
    Assignee: Swisscom AG
    Inventors: Roger Lagadec, Didler Durand, Christophe Taddei
  • Method for transmitting an anonymous request from a consumer to a content or service provider through a telecommunication network
    Patent number: 8812328
    Abstract: A method and system for use in allowing a content or service provider to establish an anonymous profile of a consumer using at least one request sent by the consumer through a communication network. The request sent by the consumer includes identification data of the consumer. The identification data is substituted in the network with an alias so as to anonymize the request. The identification data is not accessible to the content or service provider and there is a correspondence between the identification data and the alias.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: August 19, 2014
    Assignee: Swisscom AG
    Inventors: Roger Lagadec, Didler Durand, Christophe Taddei
  • METHOD FOR TRANSMITTING AN ANONYMOUS REQUEST FROM A CONSUMER TO A CONTENT OR SERVICE PROVIDER THROUGH A TELECOMMUNICATION NETWORK
    Publication number: 20100049623
    Abstract: A method and associated arrangement allows a content or service provider to establish an anonymous profile of a consumer using at least one request sent by the consumer through a communication network. The request sent by the consumer includes identification data of the consumer. The identification data is substituted in the network with an alias so as to anonymize the request. The identification data is not accessible to the content or service provider and there is a one-to-one and immutable correspondence between the identification data and the alias.
    Type: Application
    Filed: August 7, 2009
    Publication date: February 25, 2010
    Applicant: SWISSCOM MOBILE AG
    Inventors: Roger Lagadec, Didier Durand, Christophe Taddei
  • Delta modulated signal sampling rate converter using digital means
    Patent number: 4630007
    Abstract: In the conversion of a first delta modulated signal with a first bit rate into a second delta modulated signal with a second bit rate, a first and second digital signal derived respectively from the first and second delta modulated signals are compared together in an adding circuit (58) followed by an integration circuit (55). In this way an analog intermediary signal can be avoided and the circuit complexity is small.
    Type: Grant
    Filed: June 10, 1985
    Date of Patent: December 16, 1986
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Roger Lagadec
  • Apparatus for recording a wobbling, spiral guide groove on an optical disc
    Patent number: 4942565
    Abstract: Recording apparatus for forming a track on a disk-shaped recording medium capable of optical information reproduction, comprises a deflection device for deviating a recording beam from a light source in a radial direction of the disk-shape recording medium and a deflection-control signal generating device. The deflection control signal is developed from the superimposition of a first signal having a predetermined frequency and a second signal having a lower frequency than the predetermined frequency. The superimposition of the second signal can be done while retaining the predetermined frequency.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: July 17, 1990
    Assignee: Sony Corporation
    Inventor: Roger Lagadec
  • Scanning frequency synchronization method and apparatus
    Patent number: 4780892
    Abstract: Using the inventive method and apparatus, two scanning sequences can be synchronized with small signal delays and at the smallest possible apparatus expense. The time differences between associated scanning values or signals of the two scanning sequences are compensated by alternatingly delaying relative to each other the scanned values or signals and interpolating between the scanned values or signals of one of the two scanning sequences. The apparatus for carrying out the synchronizing operation comprises a storage for producing the delays and a filtering device for performing the interpolation.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: October 25, 1988
    Assignee: Willi Studer AG
    Inventor: Roger Lagadec
  • Method and system for anonymously transmitting messages by means of a telecommunication network
    Patent number: 7356133
    Abstract: Method for anonymously transmitting a message by means of a telecommunication network. A first exchange (2) between the sender (1) and the receiver (4) of said message replaces identifying features (MSISDN) of the sender (1) of the message by a first alias identification (CID). The conversion between the said identifying features (MSISNDN) and the first alias identification (CID) is permanent, or at least secure for several weeks. The first alias identification (CID) is replaced by a second alias identification (CMID) at the receiver (4) or in a further exchange (3). The second alias identification (CMID) enables the receiver to identify the transmitter.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: April 8, 2008
    Assignee: Swisscom Mobile AG
    Inventors: Roger Lagadec, Eric Lauper
  • Method and apparatus for measuring the time difference between two sampling times
    Patent number: 4564918
    Abstract: Equidistant timing pulses are counted during the time between the arrival of a first pulse edge of a first signal sequence and the arrival of a following second pulse edge of another signal sequence and are averaged to a mean value with equidistant timing pulses of an immediately preceding count between two pulse edges of the two signal sequences. The continuously formed mean values are accumulated with mean values of preceding cycles and in each case the least significant bit is further processed.
    Type: Grant
    Filed: January 21, 1983
    Date of Patent: January 14, 1986
    Assignee: Willi Studer AG
    Inventors: Guy W. W. McNally, Roger Lagadec, Daniele P. C. Pelloni
  • Process and apparatus for translating the sampling rate of a sampling sequence
    Patent number: 4748578
    Abstract: An input sampling sequence with an input sampling rate is translated into an output sampling sequence with a selectable output sampling rate in a sampling filter. A circuit for forming the time difference of the sampling points forms from the given input sampling rate and the desired output sampling rate a signal corresponding to the time difference and this is used in a translation circuit for converting into data for characterizing the filter coefficients. The sampling filter is conditioned by the selected coefficients from the translation circuit. The invention is suitable for the transmission of sampled data, particularly sampled rates between two systems operating at different clock frequencies.
    Type: Grant
    Filed: November 26, 1984
    Date of Patent: May 31, 1988
    Assignee: Willi Studer
    Inventors: Roger Lagadec, Henry O. Kunz
  • Method and apparatus for converting sampling frequencies
    Patent number: 4953117
    Abstract: A sampling frequency converter converts sampled input data having an input sampling frequency into sampled output data having a different output sampling frequency. The relative ratio between input data sample periods and output data sample periods is determined and averaged over a predetermined duration. A filter coefficient generator responds to the averaged input/output sampling period ratio for generating data representing a set of predetermined filter coefficients which are used by a sampling filter circuit to convert the input data samples into output data samples of a different sampling frequency.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: August 28, 1990
    Assignee: Sony Corporation
    Inventor: Roger Lagadec
  • Method and apparatus for recording and reproducing coded digital signals
    Patent number: 4748519
    Abstract: Methods and apparatus for recording and reproducing coded digital signals typically assign values of a signal to 2 categories which are separately coded, delayed differently, and subsequently recorded. In order to reduce the loss of such values in the cases of damage to the recording to the greatest possible extent, the values of the signals are coded at least twice in parallel and recorded onto several tracks. In one of the recordings, the sequence of values is modified in such a way that even major damage to the recording can be accommodated without producing non-correctable errors.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: May 31, 1988
    Assignee: Willi Studer AG & Sony Corporation
    Inventors: Roger Lagadec, Claudia Brandes, Yukio Fukuju
  • Coding digital data
    Patent number: 4757518
    Abstract: Digital data, such as audio data is coded by encoding apparatus, into a format of fixed-length multi-bit data words. At least one bit in the same predetermined bit position in each data word is a specific information data bit, such as channel status information or user information. A plurality of the specific information data bits from a corresponding plurality of successive data words respectively form a specific information word. Each specific information word contains a synchronizing signal, and the length of the specific information words is variable. A decoder decodes the encoded digital data.
    Type: Grant
    Filed: February 19, 1987
    Date of Patent: July 12, 1988
    Assignee: Sony Corporation
    Inventor: Roger Lagadec
  • Synchronizing signal decoding
    Patent number: 4766602
    Abstract: A method of decoding digital synchronizing signals each of which consists of a plurality of bits in a predetermined pattern, the intervals between the starts of successive synchronizing signals in an input digital signal being variable over a range, comprises ascertaining the bit period distance between the starts of two successive synchronizing signals, subsequently searching the input digital signal for the pattern using a window comprising the bit period distance, which window is varied in position if the bit period distance changes, and supplying an output synchronizing pulse in synchronism with subsequent synchronizing signals found in the window.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: August 23, 1988
    Assignee: Sony Corporation
    Inventors: James H. Wilkinson, Roger Lagadec
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