Patent ES-8407636-A1 (ES)
Title: Sound-activated code-controlled detection system for telephones
IPC: H04M1/64
Filed: 1984-01-30
Abstract: Control apparatus comprising a receiver station, means at said receiver station to receive a transmitted signal from a sending station and to convert said transmitted signal into an initiating signal which generates an acknowledging sound signal at said receiver station, means to trasmit said acknowledging sound signal to said sending station, a memory at said receiver station, means to program said memory in accordance with a predetermined first enunciated sound pattern, means to transmit a second enunciated sound pattern from said sending station to said memory in response to said acknowledging sound signal, and means to generate a control signal in response to a signal from said memory when the second enunciated sound pattern from said station corresponds to the first enunciated sound pattern programmed into said memory, said acknowledging sound signal including a series of successive sounds and said second enunciated sound pattern from said sending station comprising a series of corresponding successive sounds each of said corresponding successive sounds successively following the respective successive sounds of said acknowledging sound signal. GBAB- GB2153630 B Control apparatus comprising a receiver station, means at said receiver station to receive a transmitted signal from a sending station and to convert said transmitted signal into an initiating signal which generates an acknowledging sound signal at said receiver station, means to transmit said acknowledging sound signal to said sending station, a memory at said receiver station, means to program said memory in accordance with a predetermined first enunciated sound pattern, means to transmit a second enunciated sound pattern from said sending station to said memory in response to said acknowledging sound signal, and means to generate a control signal in response to a signal from said memory when the second enunciated sound pattern from said station corresponds to the first enunciated sound pattern programmed into said memory, said acknowledging sound signal including a series of successive sounds and said second enunciated sound pattern from said sending station comprising a series of corresponding successive sounds each of said corresponding successive sounds successively following the respective successive sounds of said acknowledging sound signal. - GB2153630 B Control apparatus comprising a receiver station, means at said receiver station to receive a transmitted signal from a sending station and to convert said transmitted signal into an initiating signal which generates an acknowledging sound signal at said receiver station, means to transmit said acknowledging sound signal to said sending station, a memory at said receiver station, means to program said memory in accordance with a predetermined first enunciated sound pattern, means to transmit a second enunciated sound pattern from said sending station to said memory in response to said acknowledging sound signal, and means to generate a control signal in response to a signal from said memory when the second enunciated sound pattern from said station corresponds to the first enunciated sound pattern programmed into said memory, said acknowledging sound signal including a series of successive sounds and said second enunciated sound pattern from said sending station comprising a series of corresponding successive sounds each of said corresponding successive sounds successively following the respective successive sounds of said acknowledging sound signal. USAB- US4439638 A By moving a switch, the system can be put into an ENTER mode where a number can be programmed into a memory. Then by putting the switch into an ON mode, any telephone call which comes in will not cause a ringing signal in the tle telephone or extension telephone but will instead start the voice activation system. If the same digits previously entered are again entered, then an enunciation or ringing signal will be produced by the system. - The numbers are entered by a voice or manual method so that the caller hears a repetition of numerals such as  'One, Two, Three, Four, etc'. Any sound which is made following any of these digits causes that particular digital value to be entered. When switched to an OFF mode, the telephone will ring normally. The switches can be combined into a single  three-position switch. The system may be used in a radio telephone network. (2/4) - US4439638 A By moving a switch, the system can be put into an ENTER mode where a number can be programmed into a memory. Then by putting the switch into an ON mode, any telephone call which comes in will not cause a ringing signal in the tle telephone or extension telephone but will instead start the voice activation system. If the same digits previously entered are again entered, then an enunciation or ringing signal will be produced by the system. - The numbers are entered by a voice or manual method so that the caller hears a repetition of numerals such as  'One, Two, Three, Four, etc'. Any sound which is made following any of these digits causes that particular digital value to be entered. When switched to an OFF mode, the telephone will ring normally. The switches can be combined into a single  three-position switch. The system may be used in a radio telephone network. (2/4)